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1. mce 1M media changer manipulation utility merge 1 three way file merge model 1 print detailed hardware model information mt 7 magnetic tape interface and controls for stape tapel and tape2 mvdir 1M move a directory news 1 print news items nice 1 run a command at nondefault priority nohup 1 run a command immune to hangups nroff 1 format text paste 1 merge same lines of several files or subsequent lines of one file ping 1M send ICMP Echo Request packets to network host pr 1 print files printf 1 format and print arguments rcancel 1M remove requests from a remote line printer spooling queue rcp 1 remote file copy read 1 read a line from standard input remsh rexec 1 execute from a remote shell renice 1M alter priority of running processes rev 1 reverse lines of a file rlogin 1 remote login rlp 1M send LP line printer request to a remote system rlpstat 1M print status of LP spooler requests on a remote system sdiff 1 side by side difference program sed 1 stream text editor shar 1 make a shell archive package sleep 1 suspend execution for an interval sort 1 sort or merge files split 1 split a file into pieces strings 1 find the printable strings in an object or other binary file strip 1 strip symbol and line number information from an object file tabs 1 set tabs on a terminal tail 1 deliver the last p
2. system number Assign a value to a system cell The keyword can be specified as either SY Sn value or SYSTEM n value where n is the system cell being set For example either SYS107 2 or SYSTEM 107 2 will set SYSTEM cell 107 to 2 If the latter form is used on the command line it must be quoted to prevent interaction with the shell There is no default value trans yes no auto Indicates the XDB file is to be converted to neutral format using the TRANS utility if the node keyword is not specified Indicates the XDB file is to be copied from the remote node if the node keyword is specified If trans yes use TRANS RECEIVE to copy the XDB file from the remote node If trans auto use TRANS RECEIVE only if needed otherwise use a binary copy If trans no do not copy the XDB file from the remote node The default is trans auto version version_number Selects the version to be run e g version 2001 This keyword may only be specified on the command line or in the command initialisation file The default is the latest installed version xmonitor yes no kill UNIX systems only Run XMONAST to monitor the job s progress xmonitor kill will terminate XMONAST at job completion The default is xmonitor no DSTO GD 0435 b Database keywords bpool number Number of GINO blocks allocated to buffer pool in open core The default is machine dependent see Appendix C in the MSC Nastran Inst
3. 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 NAFEMS How to analyse composites Dr W Marsden and Dr D J Irving 2002 NAFEMS How to undertake finite element based geotechnical analysis Andrew Mar 2002 NAFEMS How to understand computational fluid dynamics jargon Althea de Souza 2003 NAFEMS How to use elements effectively T Helen 2003 NAFEMS How to plan a CFD analysis AC de Souza 2002 NAFEMS Understanding non linear finite element analysis through illustrative benchmarks NAFEMS NAFEMS workbook of examples NAFEMS NAFEMS advanced workbook of examples and case studies Volume 2 2003 NAFEMS International Journal of CFD Case Studies Vol 3 July 2001 NAFEMS The standard NAFEMS benchmarks NAFEMS Benchmarks for FE pre processors NAFEMS Selected benchmarks for forced vibration NAFEMS Fundamental tests for creep NAFEMS Selected benchmarks for material non linearity NAFEMS Composite benchmarks NAFEMS Benchmarks for composite delamination GAO Davies R0084 Issue 1 2002 NAFEMS Benchmarks for radiation and scattering of sound Alfred J Svobodnik G nter Hofstetter and Otto von Estorff R0083 Issue 1 2003 NAFEMS Quality system supplement to ISO 9001 relating to finite element analysis NAFEMS Guidelines to the management of FEA NAFEMS Safe structural assessment quick reference manual 82 83 DSTO
4. Australian Government Department of Defence Defence Science and Technology Organisation Air Vehicles Division Computational Structural Analysis Facilities Policy and Guidelines for Users S Sanderson Air Vehicles Division Platforms Sciences Laboratory DSTO GD 0435 ABSTRACT This document presents the operating policies and guidelines for the use of the Computational Structural Analysis Facilities CSAF within Air Vehicles Division AVD It has been created to assist users of the CSAF to perform professional high quality finite element analysis FEA FE analysts from many tasks within AVD are using the facilities to conduct FEA with respect to the assessment of structural integrity and technical airworthiness of ADF aircraft This document covers key issues such as data and resource management as well as providing a comprehensive overview of the hardware and software facilities that are available for use It also outlines recommended generic FEA modelling procedures and provides an overview of key FEA manuals and references The specific FEA application software that is covered includes MSC Nastran MSC Patran ABAQUS PAFEC and PIGS RELEASE LIMITATION Approved for public release Published by DSTO Platforms Sciences Laboratory 506 Lorimer St Fishermans Bend Victoria 3207 Australia Telephone 03 9626 7000 Fax 03 9626 7999 Commonwealth of Australia 2005 AR 013 392 May 2005 APPROVED FOR PUBLIC RELEASE
5. file_name file_name2 or x file_name file_name2 7 7 3 beep This is the CSAF custom command script developed to ring the bell in a terminal window on the servers bigted and jayted and the workstations farted and storm It is often used after a string of other commands to give an audible indication when the previous commands have completed Usage is beep Example Tell me by ringing the terminal bell when the system has finished copying the entire contents of a huge directory from the current directory to my tmpwrk area cp r VeryBigDirectory tmpwrk myuser beep 69 DSTO GD 0435 70 7 7 4 hey This is the CSAF custom command script developed to quickly find from the list of processes running on the system which if any contain the specified pattern Usage is hey pattern 7 7 5 well This is the CSAF custom command script developed to quickly find from the list of processes running on the system those that contain the user s login name Usage is well 7 7 6 Image capture and manipulation xv An image viewer and editor It is an old X based application but it is still very useful It supports many image formats the most commonly used being TIF GIF and JPEG Usage is XV 7 7 7 Image manipulation imageview Image viewer and a capture utility This HP supplied utility has a limited editing ability and supports a limited range of image formats Usage is imageview 7 7 8
6. 44 Guide 1 for complete details on this keyword This keyword can only be set in an RC file There is no default value username name Alternate username for distributed remote or queued jobs The default is the current user name f Remote execution keywords only if node is specified node name Execute the job on the specified node Use username to specify an alternate username on the remote node This keyword may only be specified on the command line There is no default value remd pathname nastran command pathname on the remote or distributed nodes This keyword may be specified on the command line RC file or in the command initialisation file If specified in an RC file the version keyword must be defined on the command line or in the command initialisation file username name Alternate username for distributed remote or queued jobs The default is the current user name xhost yes no UNIX systems only m Execute xhost node on this node xhost yes may be required if xmonitor yes or xmonitor kill is specified The default is xhost no g Administrative keywords accmd string Command line arguments for the MSC Account logging program acct This keyword can only be set in the command initialisation file or an RC file DSTO GD 0435 acct yes no Perform solution accounting The default is acct no acdata string Site defined accounting data See your system administrator
7. change login password and associated attributes pg 1 file perusal filter for soft copy terminals ps 1 report process status pwd 1 working directory name quota 1 display disk usage and limits rcp 1 remote file copy rm 1 remove files or directories DSTO GD 0435 rmdir 1 remove directories sh 1 overview of various system shells sh rsh 1 Bourne shell the standard restricted command programming language sh rsh 1 standard and restricted POSIX 2 conformant command shells top 1 display and update information about the top processes on the system whence sh builtin locate a program file including aliases and paths which 1 locate a program file including aliases and paths who 1 who is on the system whoami 1 print effective current user id xterm 1 terminal emulator for X 95 DSTO GD 0435 96 A 3 Unix commands one line descriptions Advanced accept allow prevent LP printer queuing requests reject 1M at batch 1 execute batched commands immediately or at a later time awk 1 pattern directed scanning and processing language bdiff 1 diff for large files chmod 1 change file mode access permissions chown change file owner or group chgrp 1 cmp 1 compare two files comm 1 select or reject lines common to two sorted files command 1 execute a simple command cpio copy fil
8. job_name your dat file 47 DSTO GD 0435 48 cpu_time estimated maximum cpu time The batching system uses this value to select the queue to place the job in The queue names are short medium and long The main limits for the queues are a short 7200 seconds 2hours CPU time 2 jobs maximum and 500 MB of memory maximum b medium 54000 seconds 15 hours 8 jobs maximum and 1000 MB memory maximum and c long 720000 seconds 200 hours 6 jobs maximum and 1000 MB memory maximum mem amount of memory to allocate to the solver May be specified in words w or bytes e g 100kw 900m 5000k etc To get the general usage statement for this command nastbat See the nastran 6 1 1 command for more information on the memory and other MSC Nastran options 6 1 6 Cleaning up job output fedel This is the CSAF custom command script developed to remove output files from PAFEC ABAQUS and MSC Nastran jobs on the servers jayted bigted and poisson2 The command identifies the type of job by looking for an input file in the following order of precedence job_name DAT for a PAFEC job job_name inp for an ABAQUS job and finally job_name dat for an MSC Nastran job If run without specifying a job name it will try to clean up all analysis output files in the current directory Be warned using the same job name for multiple analyses will result in the deletion of the input decks dat or inp of at least one of the analyses This command
9. more head tail cat ccceeeee 21 5 4 6 Printing files lp lpstat Cancel igissctessvsststeectecii nner sey Geauanteartectivesant 21 5 4 7 Comparing and concatenating files diff cat s essseseesesiesesesreseesesees 21 5 4 8 Searching for and inside files find grep cece eee tees es eeeeeeeees 21 5 4 9 Changing the permissions on a file chmod ssssssseseseseesesissesesrseesesess 22 5 4 10 Controlling access to your data with file permissions 00000 22 5 4 11 Getting information whoami pwd finger env jobs ps history 24 5 4 12 Killing jobs and processes Kill scsisvisntavisessunbiniastetea settee yaceninetiecieers 25 5 4 13 Repeating and changing commands with emacs style editing 25 54 14 Pip sand redirects gt gt gt S crete iiser oe i ei a 25 5 4 15 Compressing files tar compress uncompress gzip gunzip 26 5 4 16 Remote login and file copying operations rlogin rcp and rhosts 28 CSAP FEA APPLICATIONS 5 siscscnnvesscs ti cea aeiucavansdigexanse cecssbeangstos ea ealgudevanss ipouasezarsinas 30 7 MIS CIN GSE AM a POPE E AE EAE E E TT 30 6 1 1 Running a finite element analysis the nastran command 30 6 1 2 Descriptions of MSC Nastran version 2001 keywords 31 6 1 3 Displaying MSC Nastran license usage S eNaSt cece 46 6 1 4 Tuning analysis for optimal performance on a system estimate 46 6 1 5 Submitting MSC
10. tmpwrk lt user name gt on jayted where lt username gt represents the user s login name It is up to each user to copy any essential data to their home area such as home lt user name gt on any of the HP machines It is also the user s responsibility to periodically organise the data from specific projects and request that it be archived onto CD ROMs As a result of the large amount of data that is usually transient in nature users must be aware that no data will be backed up from any temporary work areas Only data on the user s home area will be regularly backed up by the CSAP 3 3 Responsibilities of users 3 3 1 General data and resource management It is the individual responsibility of each and every user to a Maintain records of the analyses that they perform b Ensure that any important data is made available to be backed up and archived in an appropriate manner c Monitor their usage of resources This includes both disk space and software licences The user is responsible for the clean up of any unwanted files and where possible reducing the volume of output requested particularly for larger analyses On jayted this also includes running only one MSC Patran session at a time and closing it as soon as possible running a maximum of one ABAQUS one MSC Nastran and one PAFEC analysis at a time and restricting analyses to run DSTO GD 0435 times of less than two hours in duration On poisson2 ABAQUS and MSC Nastran ana
11. width page width 7 5 The frames output by plotps can then be printed with the lp command see section 5 4 6 and Appendix A 2 e g Ip outfile ps 7 6 TMP SLIM and Vision 7 6 1 Specialised processing of large MSC Nastran jobs slim The Structural Loads Interface Method SLIM was developed at General Dynamics Fort Worth Texas July 1992 for the F 22 stress analysis community to allow easy access to internal loads data by individual analysts The software is an extension of the NASUU3 software used by the F 16 stress analysis community Now sold by Third Millennium Productions TMP SLIM provides the capability to isolate parts i e select a group of elements nodes perform maximum minimum internal load scans i e stress strain force etc summarise results and generate TMP Vision results files for visualisation of finite element model results The software resides on the SGI Octane workstation ardvark SLIM can be initiated by executing the following UNIX command Note that the user manual 40 is in html format and hence requires a browser to view it Usage is slim mode dbname partname where mode Operational mode Default i i Interactive SLIM command line prompts porgen Automated batch portable file generation viewgen Automated batch TMP Vision tm results file generation u Display command line usage h Display on line user documentation html r Software restrictions and limitations c
12. 0 Table 6 System Cell Number 166 Summary from 4 Section 1 Table 1 2 System Cell System Cell Number Name Function and Reference 166 Controls sparse symmetric decomposition Sum the desired values Default 1 0 No action 1 If insufficient core is encountered then switch to conventional decomposition and continue Default 2 Print diagnostics 4 Do not issue fatal message if maximum ratios are exceeded Although high maximum ratios may be printed they will not cause job termination This applies to the DCMP DECOMP REIGL and LANCZOS modules 6 1 2 Descriptions of MSC Nastran version 2001 keywords This section lists short descriptions of the nast2001 command keywords as given by the command nastran help all The command output has the keywords divided into the following sections a General b Database c Numeric method d Distributed execution e Queuing f Remote execution and g Administrative 31 DSTO GD 0435 32 a General keywords after time UNIX systems only Hold execution until the specified time Also used by submit See the at 1 man page for further information There is no default for this value append yes no Concatenate the F06 F04 and LOG files The file type of the concatenated file is out The default is append no batch yes no UNIX systems only Execute in background Overridden by aft and queue The default is batch
13. 5 4 12 Killing jobs and processes kill To kill or terminate a job you type kill Yonumber where number is the job number as reported by jobs To kill a process use kill processnumber where the processnumber is reported by ps Watch out Don t kill a process unless you know what you are doing 5 4 13 Repeating and changing commands with emacs style editing The Posix shell on the HP machines has been configured to use emacs style command line editing set o emacs It uses many control and escape sequences such as R P N A B D E F H You can repeat the command you just gave using P M The command Rtext finds the last command that contained text Thus for example the command Rls finds the previous command that contained Is in your history list see 5 4 11 and Rr finds the last command that contained an r for example a pafrun command 5 4 14 Pipes and redirects gt gt gt lt Many UNIX programs take input transform it and then give output This is usually set up so that the input comes from a file If no filename is given input comes from what is called standard input The output goes to standard output Almost always standard input is the terminal keyboard and standard output is the terminal screen Often you want to control the input and output of programs This is done with pipes and redirects What a pipe does is connect standard input to standard output In other words it takes the output o
14. ABAQUS Standard User s Manual 24 Section 3 4 1 Using the ABAQUS environment settings and 26 DSTO GD 0435 buffer This option specifies the number of 64 bit words that are used for each internal scratch buffer in the solver input file processor These scratch buffers are used for internal databases The default is sufficient for most problems Insufficient buffer space will cause the solver input file processor to use more external disk storage and will affect performance The default value for this parameter can be set with the pre_buffer parameter in the environment file see ABAQUS Standard User s Manual 24 Section 3 4 1 Using the ABAQUS environment settings and 26 interactive This option will cause the job to run interactively For ABAQUS Standard the log file will be output to the screen for ABAQUS Explicit the status file and the log file will be output to the screen The default run_mode can be set in the environment file see ABAQUS Standard User s Manual 24 Section 3 4 1 Using the ABAQUS environment settings and 26 background This option will submit the job to run in the background which is the default Log file output will be saved in the file job name log in the current directory The default method for submitting the job can be set in the environment file by using the run_mode parameter see ABAQUS Standard User s Manual 24 Section 3 4 1 Using the ABAQUS environment settings and 26
15. ACKNOWLEDGEMENTS evsssssstsssasissevensecenssinces sonveacynsesncasesaudicitasucastseasecstesvbaayusnsmestsans 92 APPENDIX A UNIX COMMANDS QUICK REFERENCE cc csssssssssesssssessesesees 93 A1 Commands lists escccsssescsdessesssccesesecdisscanseseseesssccseaevasesdesesdsseeoudseseds 93 A 2 Unix commands one line descriptions Basic ss0e 94 A 3 Unix commands one line descriptions Advanced 96 APPENDIX B NEW USER MAIL MESSAGE eseesessesesceroseesesossosseseseosesossoseeseseesossesese 99 B 1 New User mail message template scsssssesssssssssssssssssseseees 99 DSTO GD 0435 1 Introduction Air Vehicles Division AVD has built up a significant capability to perform finite element analysis FEA FEA is used extensively throughout the Division particularly with respect to the assessment of structural integrity and technical airworthiness of Australian Defence Force aircraft The Computational Structural Analysis Facilities CSAF represent the considerable resources invested by AVD on this FEA capability The main functions of the CSAF are to provide and manage the infrastructure required for advanced FEA within AVD As part of the management of the facilities it is the responsibility of the CSAF team to provide up to date reliable hardware and software to satisfy the increasing demands for and of FEA The CSAF team also provides support to assist users of the CSAF to perform professional h
16. Air Vehicles Division Computational Structural Analysis Facilities Policy and Guidelines for Users Executive Summary Air Vehicles Division AVD has built up a significant capability to perform finite element analysis FEA FEA is used extensively throughout the Division particularly with respect to the assessment of structural integrity and technical airworthiness of ADF aircraft The Computational Structural Analysis Facilities CSAF represent the considerable resources invested by the AVD on this FEA capability The main functions of the CSAF are to provide and manage the infrastructure required for advanced FEA within AVD As part of the management of the facilities it is the responsibility of the CSAF team to provide up to date reliable hardware and software to satisfy the increasing demands for and of FEA The CSAF team also provides support to assist its users to perform professional high quality FEA This document presents operating policies and guidelines for the use of the CSAF It also covers key issues such as data and resource management as well as providing a comprehensive overview of the hardware and software facilities that are available for use It also outlines recommended generic FEA modelling procedures and provides an overview of key FEA manuals and references The specific FEA application software that is covered includes MSC Nastran MSC Patran ABAQUS PAFEC and PIGS This document will help to provide AVD with the
17. Copy custom SLIM template to specified file dbname Name of SLIM data base or condition definition file partfile Name of part file defining the portion of the model for recovery valid only for porgen and viewgen modes 67 DSTO GD 0435 68 7 6 2 Specialised processing of large MSC Nastran jobs vision TMP Vision is a visualisation tool designed to visualise data that can be mapped on to a polygonal model Although a number of features are aimed at visualising finite element models and associated analysis results any data that can be mapped onto a mesh of polygons can be viewed TMP Vision is designed using Motif as the graphical user interface All graphics are drawn in the graphics region using either Iris GL or Open GL depending on the hardware being used The software resides on the SGI Octane workstation ardvark Vision can be initiated by executing the following UNIX command Note that the user manual 41 is in html format and hence requires a browser to view it Usage is vision 7 7 CSAF utilities 7 7 1 Text editors dtpad or vuepad These simple X windows text editors are available on the HP servers under the CDE or VUE desktop managers respectively More specifically the dtpad utility is a basic editor that supports editing text files in a manner consistent with other common graphical user interface text manipulation and file access mechanisms Cursor positioning and text selection as well as access to vari
18. Guide 1 When used for remote processing see node this pathname 41 DSTO GD 0435 42 must be valid on the remote system If dmparallel gt 1 unique scratch directories may set for each task using the character to separate entries the names will be paired with the tasks in round robin order slavejob yes no Distributed systems only Specifies the slave job is to be used on slave nodes For MSC Nastran V69 2 the default and only legal value is slavejob yes For MSC Nastran V70 5 and later the default is slavejob no slaveout yes no Distributed systems only Specifies the output files from slave tasks are to be returned to the local node The default is slaveout no username name Alternate username for distributed remote or queued jobs The default is the current user name e Queuing keywords only if queue is specified cpulimit seconds UNIX systems only The NQS NQE per request CPU limit IT See also ppcdelta This is the maximum total CPU time allocation for all processes in the job This value may be input in the form hours minutes seconds fractionalseconds where hours and minutes are integral values it is always saved as seconds There is no default value ppcdelta seconds UNIX systems only Used to calculate ppc ppcdelta is subtracted from cpulimit This value may be input in the form hours minutes seconds fractionalseconds where hours and
19. Image manipulation capture The capture utility works as part of the imageview utility although it may be started independently DSTO GD 0435 Usage is capture 7 7 9 PostScript file viewing and printing ghostview Ghostview is an X11 user interface for ghostscript see section 7 7 10 written by Timothy O Theisen and provided under the GNU public license It is a utility to view and print PostScript files Usage is ghostview postscript_file 7 7 10 PostScript file editing ghostscipt It is a utility written by Aladdin Enterprises provided under the GNU public license to edit and print PostScript files Usage is gs 7 7 11 Web browser netscape The web browser supplied with HP computer systems running HP UX Usage is netscape URL 7 7 12 HP documentation viewer dynatext It provides on line help system and programming references and documentation and is the central part of the HP Instant Information software Usage is dynatext book 71 DSTO GD 0435 72 7 7 13 MSC Nastran documentation viewer iview This provides access to the MSC Nastran Online Encyclopedia It covers MSC Nastran version 70 5 but it has not been updated by MSC because of Year 2000 Y2K issues Usage is iview book 8 Example Operations 8 1 Copying files to from another user This operation requires that both of the users that are involved set the correct security permissions on their files and
20. Nastran jobs to batch queue nastbat 47 6 1 6 Cleaning up job output fedel ois wreieco 0ss hos eanorasean serene eA eri Tatr 48 6 2 ABA QUS Standar siccsscciccississdscecdecssoasdecdiscdcedaacevessiasdcensesdnceegesstdesbessebecbbectebease 48 6 2 1 Running an analysis with the abaqus command cece eects 48 6 2 2 Descriptions of abaqus command line Options 0 0 cece erences 49 6 2 3 Checking the ABAQUS license abaqus licensing cee 57 6 2 4 Checking ABAQUS license usage Seeaba ccc eeeeseteeseecseneeeeeeee 57 6 3 PACSYS PAFEC aneignen ns ere i nE sione 57 6 3 1 Running a PAFEC job pafrun s e ssssessesesssesesiseresrsesesesreseresresenrereseeses 58 6 3 2 Releasing stale licenses before and after a PAFEC job rmlock 58 6 3 3 Cleaning up after a PAFEC job pafdel esses eeeeseeeeees 58 6 3 4 Checking and setting the PAFEC level to run paflev 59 CSAF FEA PRE POST PROCESSING APPLICATIONS ccscssssssssssssssssssesssseees 60 7A WESC PAGAN AE AE E T 60 7 1 1 Starting the MSC Patran gui ssssssssesssessessssesesessesresesesesrssteresesresesreseses 60 7 1 2 Displaying MSC Patran license usage seepat sssseseeesesreseerereseese 61 T2 PRB ROU i enaa aeie aA E A EE ES iE ATES iazestavaaasnaieniacsberauesbanpiaaesdenaaee 62 7 2 1 Viewing results of abaqus jobs CAE s sssesssessessssssisesresieseresreseereresesses 62 7 2 2 Viewing results of abaqus jo
21. analysis simulations The ABAQUS Standard keyword interface is used to model the same examples as those included in a above 93 2 User s manuals a ABAQUS Standard User s Manual Volumes I II and II v6 2 24 This is the basic reference document for ABAQUS Standard It contains a complete description of the elements material models procedures input specifications etc ABAQUS Viewer User s Manual v6 2 25 This basic reference document contains a tutorial as well as a complete description of how to use ABAQUS Viewer to display your model and results ABAQUS Online Documentation 26 Online manual containing instructions on using the ABAQUS online documentation server to read the manuals that are available online ABAQUS Release Notes v6 2 27 Contains brief descriptions of the new features available in this release ABAQUS Site Guide v6 2 28 Describes how to install and configure ABAQUS Parts of this information of relevance to users are also provided in the user s manuals 9 3 3 Example manuals a ABAQUS Example Problems Volumes I and II v6 2 29 Contains more than 75 detailed examples designed to illustrate the approaches and decisions needed to perform meaningful linear and non linear analysis It is generally useful to look for relevant examples in this manual and to review them when embarking ona new class of problem 81 DSTO GD 0435 82 b ABAQUS Benchmarks Manual 30 Online only doc
22. compatibility issues with the current compiler and operating system version which cause some analysis features not to function These issues may well be resolved by a recompilation of the package but this has been deferred until a sufficient need for this level and these features exists 57 DSTO GD 0435 58 6 3 1 Running a PAFEC job pafrun This is the command script that sets up the PAFEC analysis run It allows the user to runa PAFEC analysis interactively only Usage is pafrun job_name opt level where job_name base name of input data deck i e without the DAT suffix For levels prior to 8 1 the name had to be in UPPERCASE opt 1 new analysis 2 restart 3 restart level PAFEC level to be run e g 62 81 85 for levels 6 2 8 1 and 8 5 respectively on bigted and 87 only on jayted 6 3 2 Releasing stale licenses before and after a PAFEC job rmlock This is a PAFEC utility program that allows the user to check for and remove stale PAFEC license lock files that were created by any user It is deemed to be good practice to run it before and after a PAFEC analysis In the first case it can remove stale lock files left by any users previous analysis that failed In the second case it ensures that the lock files are removed after your current analysis irrespective of whether it failed or succeeded Usage is rmlock y where y remove all stale lock files without prompting 6 3 3 Cleaning up after a PA
23. contain an index listing of all your databases and analysis decks in this directory with a short description of each This file would also be a good place to define any conventions that you have used such as file names units model parameters etc An example name is 2D_structure index 8 4 1 MSC Nastran These are the generic modelling steps to carry out an MSC Nastran analysis after performing the common steps in section 8 4 above a SWUOCL LOS 7 Na 1 Open patran and create a new database with the analysis code set to MSC Nastran the analysis types set to Structural or Thermal as appropriate and the tolerance set to default Create the model geometry Create the finite elements Create the restraints and loads Create the materials Assign the material properties Optionally define multiple load cases Create an analysis deck with the appropriate load cases for the desired solution type Note CSAF policy is to NEVER run an analysis from within patran Close patran Open the data deck with your preferred editor e g dtpad to verify that the deck has the correct solution type and contains all of the load cases and components of the model you want analysed Either reopen patran to fix any problems and rewrite the data deck preferred method or directly edit the deck which is necessary in some cases as MSC Patran does not support all MSC Nastran solution types but this also means that the patran da
24. contain the word patran and then sends this result to a file named patran_process list One of the main organising principles of Unix is to have simple commands that can be easily linked together in various ways to get powerful results 5 4 15 Compressing files tar compress uncompress gzip gunzip All Unix systems have tar and compress commands and today most will also have gzip The tar command will combine a list of files and directories into an archive but it does not compress the data The compress command will compress each file it is given The gzip command in general will compress files better than the compress command and also has the advantage of being compatible with the zip engines used on other platforms The DSTO GD 0435 uncompress and gunzip commands are used to expand the data after it has been compressed via compress and gzip respectively The default file extensions for tar archives compress and gzip files are tar Z and gz respectively Also note that gunzip also understands the extension tgz to be a zipped tar archive and taz to be a compressed tar archive The tar command saves and restores archives of files on a magnetic tape a flexible disk or a regular file The default archive file is dev rmt 0m See the f option below Its actions are controlled by the key argument The format of the tar command is tar key arg file C directory or specifying some of the more commonly used keys and ar
25. data deck or create a new data deck for the next iteration of the analysis Remember to update the info in your model index file if you have not already done so If you are satisfied with your results now write your report m After the report has been done ensure that the essential data is archived n Clean up the directory 77 DSTO GD 0435 78 9 Overview of Key Manuals and References The following manuals are available either in the CSAF Workstation Room or as on line documentation Each manual is listed with a brief description of its purpose and contents The manuals have been grouped by application and have generally been subdivided into User manual guide and Reference sections 9 1 MSC Nastran The latest information and answers to frequently asked questions FAQs may be obtained on the internet from the MSC Software or MSC Software Australia home pages at http www mscsoftware com or http www mscsoftware com au respectively Additional help may be found if you go to the MSC Mechanical Solutions website at www mechsolutions com and click on Support Here you can find a wide variety of support resources including examples of applications technical application notes available training courses and documentation updates at the MSC Software Training Technical Support and Documentation web page 9 1 1 Installation and release guides a MSC Nastran 2001 Release Guide 1 This book contains an overview of MS
26. defence gov au workareas SCIS networks dsto sec 003 pdf Good luck amp happy computing bfn SS AVD CSAF Sys Admin Voicemail 9626 7278 Facsimile 9626 7089 Page classification UNCLASSIFIED DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION eee 2 TITLE 3 SECURITY CLASSIFICATION FOR UNCLASSIFIED REPORTS THAT ARE LIMITED RELEASE USE L NEXT TO DOCUMENT Air Vehicles Division Computational Structural Analysis Facilities CLASSIFICATION Policy and Guidelines for Users Document U Title U Abstract U 4 AUTHOR S 5 CORPORATE AUTHOR S Sanderson Platforms Sciences Laboratory 506 Lorimer St Fishermans Bend Victoria 3207 Australia 6a DSTO NUMBER 6b AR NUMBER 6c TYPE OF REPORT 7 DOCUMENT DATE DSTO GD 0435 AR 013 392 General Document May 2005 8 FILE NUMBER 9 TASK NUMBER 10 TASK SPONSOR 11 NO OF PAGES 12 NO OF REFERENCES M1 9 1363 RDI 03 058 CAVD 102 93 13 URL on the World Wide Web 14 RELEASE AUTHORITY http www dsto defence gov au corporate reports DSTO GD 0435 pdf Chief Air Vehicles Division 15 SECONDARY RELEASE STATEMENT OF THIS DOCUMENT Approved for public release OVERSEAS ENQUIRIES OUTSIDE STATED LIMITATIONS SHOULD BE REFERRED THROUGH DOCUMENT EXCHANGE PO BOX 1500 EDINBURGH SA 5111 16 DELIBERATE ANNOUNCEMENT No Limitations 17 CITATION IN OTHER DOCUMENTS 18 DEFTEST DESCRIPTORS Finite element analysis military aircraft structural integrity airworthiness data management computer p
27. directories The particular combination that is required depends upon the group membership of each user The first two methods listed below are quick n dirty ways to perform this operation The first method provides neither data security nor any guarantee of data integrity The second method whilst providing data integrity has no data security The third method has both data security and integrity but does require careful setting up and continual awareness by both users as to the current group that they are working in Method 1 Not Recommended User A copies the file s to var tmp User B copies the file s from var tmp User A deletes file s in var tmp Method 2 Not Recommended User A sets global read permissions on the files to be copied and read and execute permissions on the directory containing the files then tells User B the path and file names Note that ANY user can now read the files User B copies the files from User A s area User A removes the global read access Method 3 Preferred under the current Defence Security context User A and B check to see if they belong to the same user group If not then they request the system administrator to arrange a common group If necessary User A changes to the common group and changes the group that the files and directories belong to User A sets the group read and execute permissions as appropriate User B copies the files DSTO GD 0435 8 2 Transferring data
28. e lock lock msgcat pathname Pathname of binary message catalogue If a directory is not specified and the file does not exist in the current directory the default executable directory is assumed Users should also see the section 6 1 4 on tuning analyses 6 1 3 Displaying MSC Nastran license usage seenast This is the CSAF custom command script developed to display current MSC Nastran license use on the server jayted The command has no parameters This command uses the FLEXIm license manager utility to interrogate the license server for the MSC Nastran feature Be warned occasionally license tokens are returned prematurely to FLEXIm from some parts of an MSC Nastran analysis which leaves the analysis running in an indeterminate state and also then permits a new MSC Nastran analysis to be started even if the number of analyses exceeds the license limit When this event occurs the lost job still continues using CPU memory and disk resources albeit very slowly but it is not certain to complete successfully It is recommended that a more thorough check be made on the state of MSC Nastran jobs by using the command hey anal or hey msc see section 7 7 4 Usage is seenast 6 1 4 Tuning analysis for optimal performance on a system estimate The estimate utility is used to tune an MSC Nastran analysis for more optimal performance on a particular system It is more advantageous when applied to a larger analysis It is importan
29. esereresesesesesesessorososeseseesososese 73 8 4 1 MSGNastrafi ansio e ea aea S a a E a ES A ES 74 84 2 AA OU nehe Gae S e era tos AE Se SEa Eaei ethan Ra ea teat 75 o A SEN TPA F S OE E EAEE E ES 76 9 OVERVIEW OF KEY MANUALS AND REFERENCES sssessessessessessessesseseesseseeseesee 78 OD Y LEA E T a aM a OEE O E S 78 9 1 1 Installation and release guides scsi cpeccsssssinchinsseeriosheyseasnan teers bentvent evreoant 78 91 2 Reference DOOkS sc inndnn anna borhan EEATT R Vn 78 91 User S SUI SS iis rcs neevene ern ans ueantselnma meee Menente 79 D2 MSC Pate am wrseys cco icesaxsurcecsiasivenvesevssvenspuresennenseessvwileussnpussavsasbessinlacedauinanieeagesersevesabests 80 93 ABO US wissciisscecdedescessatutovscelovssawiavecnascder oudys vcebsedecslesessatiervteresssenhesdaaneersloniesshisons 80 9 3 1 Training MAN Mal Se jiassiscshucinen pines ie ienien n ea E iE n eam 81 9 3 2 Users Mmanualg sss 1h svaslepsanis sation cious a a a a i std 81 9 3 3 Example manuals resyn naesten e E aa a E Ro 81 93 4 Reference manualss enerne a a aE a Bia nme 82 GA PACSYS PAFEC caccuds csoeseacypusvactessosscerssssnccuasessech vey sucts rDo asees ir iE AECE Si STe ERES 82 94T a Users manualsrrorinn e ar Beccles a a A a A e Bes ai 82 9 4 2 Reference manuals ssessessesesesesesesesesssseserestststsessestsestseseseseseesesesesesesesee 83 9 5 SAIC CV CCPL OE i caiinicasetowiea Bas saciencensetosipiesnctosisatetadustsondsesslediaieces
30. hardware failures Data backup schemes are in place to ensure that little or no user data is lost if any of the computer systems have problems In particular the potential loss of data from large scale disk failures is protected against by the combination of a policy of performing daily incremental backups and employing hardware RAID devices for disk storage Disaster recovery procedures have also been established to try to avoid any unacceptably long computer system downtimes while the hardware is repaired replaced and file storage systems are being rebuilt DSTO GD 0435 3 Policy of Use 3 1 Conditions of access to the CSAF It is a condition of access to the site Network i e the DSTO Restricted Network that all users must have both read and understood the DSTO POLICY document DSTO SEC 003 on Information System Security Practice amp Procedures IS SPP For the DSTO RESTRICTED Network Those users unfamiliar with the contents of the DSTO IS SPP for the DSTO R Network must ensure that they read and understand this document as a matter of high priority The URL link to this document is given below http web vic dsto defence gov au workareas SCIS networks dsto sec 003 pdf It is important to note that only unclassified data is to be stored on the CSAF 3 2 CSAF policy on data management It is the general policy of the CSAF that the majority of work particularly the larger analyses be carried out on temporary work areas such as
31. p3 or hey msc see section 7 7 4 61 DSTO GD 0435 62 Usage is seepat 7 2 ABAQUS The following is a summary of the some of the more relevant pre and post processing options extracted from the output of the command abaqus help 7 2 1 Viewing results of abaqus jobs CAE The new ABAQUS tool to process and view results of an analysis is called CAE which has replaced the viewer tool see section 7 2 2 Many results may be viewed by using MSC Patran also Usage is abaqus cae database database file replay replay file recover journal file startup startup file noenvstartup where database database file replay replay file recover journal file startup startup file This option specifies the name of the model database file or output database file to open To specify a model database file include either the cae file extension or no file extension in the file name To specify an output database file include the odb file extension in the file name This option specifies the name of the file from which ABAQUS CAE commands are to be replayed The commands in replay file will execute immediately upon startup of ABAQUS CAE If no file extension is given the default extension is rpy This option specifies the name of the file from which a model database is to be rebuilt The commands in journal file will execute immediately upon startup of ABAQUS CAE If no file extension is given the default exte
32. startup This option can be used in conjunction with the startup command to suppress all configuration commands except for those in the startup file DSTO GD 0435 output_precision This option specifies the precision of the nodal output written to the output database job name odb using the NODE OUTPUT option Using output_precision full results in double precision output for ABAQUS Standard analyses To obtain double precision output for ABAQUS Explicit analyses use the double option in addition to using output_precision full 6 2 3 Checking the ABAQUS license abaqus licensing ABAQUS version 6 2 7 and later uses a version of the FLEXIm licensing software ABAQUS versions 6 2 6 and earlier used the ELM licensing software which was very sensitive to incorrect job termination i e the license manager could hang onto the licence tokens for up to an hour if a job crashed or was otherwise interrupted by the user The status of ABAQUS jobs may be examined with the abaqus licensing utility Usage is abaqus licensing ru or abaqus licensing Imstat f ABAQUS 6 2 4 Checking ABAQUS license usage seeaba Displays all licensed abaqus features and their usage Usage is seeaba 6 3 PACSYS PAFEC PAFEC is installed only on the two HP servers bigted the HP K260 server and jayted the HP J7000 server PAFEC levels 6 2 8 1 and 8 5 are installed on bigted and only PAFEC level 8 7 is installed on jayted Note that level 6 2 has some
33. supernode tree domains number of domains memory memory size buffer buffer size interactive background queue queue name after time double scratch scratch dir startup startup file name noenvstartup output_precision single full li li 6 2 2 Descriptions of abaqus command line options All options are order independent If none of these options is present the analysis option is assumed The convert option is an exception to the mutual exclusion rule convert can appear with any option except datacheck parametercheck and syntaxcheck help This option prints a summary of the abaqus command syntax information Typing abaqus information value prints helpful information about the installation and the environment that is in effect for this job whereami 49 DSTO GD 0435 50 This option prints the location of the ABAQUS release directory It cannot be used with any other command line option job The value of this option specifies the name of all files generated during the run and the name of files that are read in the continue convert and recover phases If this option is omitted from the command line the user will be prompted for its value except for the informational options analysis This option indicates that a complete ABAQUS analysis or a restart of an ABAQUS analysis is to be performed datacheck This option indicates that the ru
34. to determine how this keyword is to be used acid string Site defined account ID See your system administrator to determine how this keyword is to be used acvalid f w regular expression command Indicates account ID validation is to be performed See the MSC Nastran Installation and Operations Guide 1 for further information This keyword can only be set in the command initialisation file or an RC file authclear no msc Im both yes Clear previous authorisation information flag The value indicates what level of previous AUTHORIZE information is to be cleared The default is authclear no authinfo number Information message flag Values greater than zero indicate additional informational messages are to be displayed The default is authinfo 0 authorize pathname port host demo Authorisation file pathname nodename of network license server or demo to request the demo license The environment variable MSC_LICENSE_FILE overrides the RC files the command line overrides the environment variable authqueue number Maximum time in minutes to wait for licenses if they are currently in use by another job The default is authqueue 20 45 DSTO GD 0435 46 lock keyword Prevents a keyword from being modified Once a keyword is locked e g lock acct any attempt to set the keyword in an RC file or on the command line will be silently ignored The lock keyword can be locked i
35. undertake fracture mechanics analysis 60 tackle non linear FEA 61 analyse composites 62 undertake FE based geotechnical analysis 63 understand CFD jargon 64 use elements effectively 65 and plan a CFD analysis 66 9 6 3 Benchmarks and reports The topics related to benchmarks in this section cover non linear FEA 67 standard NAFEMS benchmarks 71 FE pre processors 72 forced vibration 73 tests for creep 74 material non linearity 75 composite benchmarks 76 77 and acoustic radiation and scattering 78 The other topics in this section cover NAFEMS workbooks of examples 68 69 and the International Journal of CFD Case Studies Vol 3 July 2001 70 9 6 4 Management guides The topics in this section cover quality to ISO 9001 and management of FEA The titles are Quality System Supplement to ISO 9001 relating to Finite Element Analysis 79 Guidelines to the Management of FEA 80 Safe Structural Assessment Quick Reference Manual 81 Safe Structural Assessment Management Guidelines 82 and Safe Structural Assessment Manual 83 9 7 Unix manuals There are almost countless manual pages 84 87 as well as several browser style desktop help managers 85 86 88 on the HP and SGI UNIX systems Also almost every package that is installed will add its own manual pages its own browser style help system and or have built in help 19 20 21 26 39 89 90 91 DSTO GD 0435 9 8 O
36. with Linux or X emulation software GRAPHICS INTENSIVE PRE amp POST PROCESSING DDS 2 tape autoloader a outback1 SGI Octane 3x CD ROM Octane F 111 F 111 fatigue life rewriters FEA pre amp post prediction processing storm HP 715 workstation farted HP C240 graphics HP UX 10 20 system workstation administration HP UX 11 00 data archive Figure 1 The AVD CSAF on the DSTO network DSTO GD 0435 Table 1 Software licenses available on each server and workstation as at Feb 2004 Licences on server workstation FEA software jayted poisson2 bigted farted ardvark MSC Patran 10 i ABAQUS 2 1 MSC Nastran 2 2 PAFEC 2 2 PIGS 1 2 TMP Slim Vision 1 Licences on server workstation Other software jayted poisson2 bigted farted ardvark Tecplot 2 Fortran 77 1 1 1 1 1 Fortran 90 1 1 1 Ansi C C 1 Note that jayted is the server for the MSC Patran licenses 2 1 CSAF team responsibilities The CSAF team is responsible for providing maintaining and managing the CSA Facilities This includes keeping the hardware and software up to date to cope with the ever increasing demands of FEA as well as providing adequate backup of data The team places a high priority on minimising the extent of any interruptions to services that could disrupt the achievement of milestones in other AVD tasks The CSAF systems have been configured as far as possible to minimise machine downtimes in the event of
37. 001 15 Guide on using user routines to modify MSC Nastran behaviour during various analyses 79 DSTO GD 0435 80 i k Toolkit version 2001 16 Guide to the MSC Nastran toolkit MSC Nastran On line Encyclopedia v70 5 17 This collection is the last set of on line documentation supplied by MSC and is now very much out of date with respect to the later release features However it does contain the complete MSC Nastran Reference Manual v68 which is still the current MSC Nastran reference document It is still of some use in looking up MSC Nastran command and data deck options as the majority of the MSC Nastran package features have not changed It is also useful for looking up error messages as many of these tend to be the ones that still occur with the newer versions 9 2 MSC Patran a MSC Patran 2001 Installation and Operations Guide 18 This book is intended to guide system administrators and users through the installation of MSC Patran It contains all the information you need to install and configure MSC Patran It is organised into the following major sections Chapter 2 Required Hardware and Software Configurations Chapter 3 Installing MSC Patran on UNIX and LINUX Chapter 4 Installing on Microsoft Windows NT Chapter 5 User Environment Chapter 6 Problems and Resolutions Appendix A Installing FLEXlm and Appendix B Testing the Installation MSC Patran Users Reference versions 9 0 and 2001 19 T
38. 4 Amtec Tecplot 74 1 Scientific plotting of data tecplot This is a fully featured scientific plotting package It has many capabilities and features Tecplot creates and uses either a layout file lay or a package file lpk As Tecplot has so many features for a novice the best option here is to find someone to show you how to use it and then you must be willing to spend some time reading the manual Tecplot can export plots in Windows compatible formats such as Windows metafile and bitmaps Usage is tecplot plot_layout_file where plot_layout_file may be either a layout file job lay or a package file job lpk 7 5 MSC Nastran 7 5 1 Creating and printing plots from MSC Nastran jobs plotps This is the MSC Nastran command to create a PostScript output file from a plot file created during an MSC Nastran analysis by the XYOUTPUT command section option Usage is plotps input plot file output output ps file begin first frame to plot end last frame to plot where for plotps version 2001 0 Command line parameters Default input plot file none plt begin first frame to plot 1 color yes no no escale character scale factor 1 0 dump yes no no end last frame to plot 999999 format binary neutral binary height page height 10 0 DSTO GD 0435 optimizestrings yes no yes output output ps file none ps rotate automatic no yes automatic scale plot scale factor 1 0 verbose yes no yes
39. 40 TMP SLIM Users Manual Version 4 5 Larry Collins June 14 2003 Located on ardvark in file app SLIM 4 50a docs SLIM_User_Guide html 41 TMP TMP Vision Users Manual Version 4 50a Larry Collins June 26 2003 Located on ardvark in file app Vision 4 50a docs Guide guide html 88 DSTO GD 0435 10 6 NAFEMS references 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 NAFEMS A finite element primer NAFEMS A finite element dynamics primer NAFEMS An introduction to non linear FE analysis NAFEMS Background to benchmarks NAFEMS An explicit finite element primer P Jacob and L Goulding 2002 NAFEMS Finite element based fatigue calculations Dr N W M Bishop and Dr F Sherrat 2000 NAFEMS Why do FE analysis NAFEMS Why do non linear FE analysis NAFEMS Why do design optimisation David Spicer 2002 NAFEMS Why do computational fluid dynamics Dr C T Shaw 2002 NAFEMS How to choose a FE System NAFEMS How to get started with FE NAFEMS How to get started in acoustics analysis NAFEMS How to choose a pre post processor NAFEMS How to plan an FE analysis NAFEMS How to interpret FE results NAFEMS How to understand FE jargon NAFEMS How to buy FE services NAFEMS How to undertake fracture mechanics analysis NAFEMS How to tackle non linear finite element analysis 89 DSTO GD 0435 90 62 63
40. 435 34 with the MSC_JIDPATH environment variable The environment variable overrides the RC files the command line overrides the environment variable There is no default path jidtype file_type Default file type for the input data file This keyword may be specified on the command line or in the system RC files the HOME RC file or an RC file explicitly named with the ref keyword The default is jidtype dat if not defined by the user jidtype shall be set to the file type of the actual input data file memory memory_size estimate Size in words of open core If memory estimate is specified the memory size will be determined by estimate see section 6 1 4 Otherwise a positive non zero value must be specified The default is memory estimate Valid memory specifications are nB nW nKB nKW nK nMB nMW nM nGB nGW nG n physical and n virtual memory default memory_size Default size in words of open core This value is used if and only if memory estimate was specified and the estimate utility see section 6 1 4 failed The default is memorydefault 8MW Valid memory specifications are nB nW nKB nKW nK nMB nMW nM nGB nGW nG n physical and n virtual memorymaximum memory_size Maximum size in words of opencore The default is machine dependent on this platform it is memorymax 0 8 physical see Appendix C in the MSC Nastran Installation and Operations Guide 1 Valid memory specifica
41. A Silicon Graphics Inc 1600 Amphitheatre Pkwy Mountain View CA 94043 USA GNU General Public License as published by the Free Software Foundation Inc 675 Mass Ave Cambridge MA 02139 USA 10 1 MSC Nastran 1 2 MSC Software MSC Nastran 2001 Release Guide Version 2001 MSC Software MSC Nastran 2001 Installation and Operations guide Version 2001 MSC Software MSC Nastran Theory Reference Version 68 MSC Software MSC Nastran 2001 Quick Reference Guide Version 2001 DSTO GD 0435 5 MSC Software MSC Nastran 2001 DMAP Programmer s Guide Version 2001 6 MSC Software MSC Nastran 2001 Reference Manual Version 2001 7 MSC Software Getting Started Version 2001 8 MSC Software Linear Static Analysis Version 2001 9 MSC Software Basic Dynamic Analysis Version 2001 10 MSC Software Advanced Dynamic Analysis Version 2001 11 MSC Software Design Sensitivity and Optimisation Version 2001 12 MSC Software Thermal analysis Version 2001 13 MSC Software Numerical Methods Version 2001 14 MSC Software Aeroelastic Analysis Version 2001 15 MSC Software User Modifiable Version 2001 16 MSC Software Toolkit Version 2001 17 MSC Software MSC Nastran On line Encyclopedia Version 70 5 18 MSC Software MSC Patran Installation and Operations Guide Version 2001 r3 19 MSC Software MSC Patran Users Reference Versions 9 0 and 2001 20 MSC Software MSC Patran PCL Programming Ref
42. A Unix Commands Quick Reference A 1 Commands lists The following sections provide a reasonably comprehensive list of basic and advanced Unix commands with their key one line descriptions The command lists are provided in alphabetical order The basic commands are what a user could expect to use ona regular basis during FEA on the CSAF The advanced commands are those that a user could expect to use less frequently The distinction is fairly artificial some users may not find a need to use more than a few of the very basic Unix commands others may find that their needs require the regular use of the so called advanced commands It should also be noted that there are a number of commands that are built into specific command shells The names of some of these commands are also common to several different shells but their behaviour is dependent upon the particular shell that the user has invoked Help on a Unix system is found in manual pages The manual page for a command is accessed using the man command It has two forms of usage man section lt command gt man k lt keyword gt The first form accesses the manual entry for a specific command For example to look in section 1M for the manual page entry for the bdf command man 1M bdf The second form will search the manual page database for entries containing lt keyword gt e g man k elephants 93 DSTO GD 0435 94 A 2 Unix commands one line descriptions Ba
43. C Nastran 2001 including enhancements to Aeroelasticity and Parallel Numeric features as well as Miscellaneous enhancements Also covers Design Optimisation Dynamics Elements and Loads Nonlinear Analysis Model Checkout and Evaluation Tools and Upward compatibility of features 10 chapters 3 appendices 500 pages b MSC Nastran 2001 Installation and Operations Guide 1 This manual provides instructions on how to install customise and use MSC Nastran Version 2001 on UNIX and Windows systems This document assumes that you have a working knowledge of the applicable operating environments The structure of the document is chapter 2 Installing 3 Configuring 4 Using the Basic Functions 5 Using the Advanced Functions 6 Using Utility Programs 7 Building and Using Sample Programs and Appendices A Glossary B Keywords and Environment Variables C System Descriptions and D Product Timing Data 9 1 2 Reference books a MSC Nastran Theory Reference v68 3 This 3 volume set is still the current MSC reference for MSC Nastran It covers all the features and solution types that can be undertaken by MSC Nastran b DSTO GD 0435 MSC Nastran Quick Reference Guide version 2001 4 Over 1500 pages divided into 6 chapters with sections covering 1 the nastran command and NASTRAN statement 2 file management statements 3 executive control statements 4 case control commands 5 bulk data entries and 6 command and resource p
44. E N a SES 13 CSAF SOFTWARE UNIX SYSTEMS ssassecsssscesssessoesnseoscvstsnsscnnncsasdeseavacedssesssecasacacaonas 15 5 1 Unix systems shells and environments ssssesesesesesesesesessoroseseseseososososeseseesesosese 15 5 11 The Unix filesystems aeeai aS Saa Ea E a SES RA saves 15 GAD Posix shells ieir von seas aE EE EEEE even a EERE e EE EEKE 16 5 L3 Startup files profile Src eee ei seenen ertesi en es 16 5 1 4 What the command line prompt can tell you sssssesssessesesieseessresresesees 16 5 1 5 CDE the Common Desktop Environment cceeeeseeeseeseneeeeeees 17 5 1 6 On line help there is no help command ou cee ceeseeecseeeeeeeeneeeeeees 17 5 2 Syntax of commands and parameters ccscscsessesssscssssssscsssssssesssssssssessssesees 17 5 37 BIR COMMA INAS ossis ei ai a a a 18 5 3 1 Unix commands Pasi sesioetan iasi 18 5 3 2 Unix commands advanced ss seesessesesesssieseressesesteresessesreresesrsstesesess 18 5 4 Unixcommands explained esesesesesesesossssesesesososessesosososesssesessssssssssososososersesesese 18 5 4 1 Paths and patterns ways to refer to files 00 sesessesesiesesesresresesees 19 5 4 2 Listing the contents Of a directory 1S wie eGisnersniervegs octnausetantecgnbeseistnees 20 5 4 3 Moving copying and removing files MV CP TM ss sssssssesssssessessessess 20 5 4 4 Changing creating and removing directories cd mkdir rmdir 20 5 4 5 Looking at the contents of a file
45. FEC job pafdel This is the CSAF custom command script developed to remove output files from in order of precedence PAFEC ABAQUS and MSC Nastran jobs on the server bigted It is identical to fedel see section 6 1 4 but its name is retained for compatibility with the older PAFEC analysis scripts developed to enhance the standard PAFEC pafdel command It is important to note that when this command identifies a PAFEC analysis that the following additional files that match the base job name and the following suffix patterns are also removed DSTO GD 0435 0 1 0 9 0 1 0 9 f 0 1 0 9 exe ERROR _err Usage is pafdel job name 6 3 4 Checking and setting the PAFEC level to run paflev This is the command to check and set the global and local levels of PAFEC to run The global level is defined in the user s home directory in the file pafeclevel A different level can be specified for a directory by using the local switch option This option creates a pafeclevel file in the current directory When a PAFEC analysis is run it first checks for this local file and if found uses the PAFEC level specified therein to run the analysis otherwise it looks for the global definition file in the user s home directory Usage is paflev level global local where level PAFEC level to be run e g 62 81 85 for levels 6 2 8 1 and 8 5 respectively global Set global default run level for all your analyses local Set default run l
46. GD 0435 NAFEMS Safe structural assessment management guidelines NAFEMS Safe structural assessment manual 10 7 Unix manuals 84 85 86 87 88 89 90 91 HP HP man pages on line document may be printed HP HP Help Manager CDF on line document may be printed HP HP Instant Information dynatext on line document may be printed SGI SGI man pages on line document may be printed SGI SGI Help Manager Insight on line document may be printed GNU Xemacs Info on line reference and users guide on line document GNU Ghostview user guide on line document Copyright C 1992 Timothy O Theisen GNU GNU Ghostscript 5 50 users guide on line document Copyright C 1998 Aladdin Enterprises Menlo Park CA USA 10 8 Miscellaneous 92 93 Callinan R J and Sanderson S Quality assurance for finite element work within Airframes and Engines Division Aeronautical and Maritime Research Laboratory DSTO TN 0166 June 1998 Anon Untitled reference on using Unix 91 DSTO GD 0435 92 11 Acknowledgements also wish to acknowledge the assistance and guidance provided by Mr Witold Waldman Mr Adam Barylko Mr Richard Callinan and Dr Manfred Heller in preparing and shaping this document I would also like to acknowledge the assistance from Aerostructures contractors Mr Nic Maan and Dr Norman Freund with information about the TMP products DSTO GD 0435 Appendix
47. MSC Patran gui There are several versions of MSC Patran installed on the different servers Table 9 shows the versions installed on each machine and also shows the default for that machine DSTO GD 0435 Table 9 MSC Patran versions available on each server default jayted bigted farted ardvark p85 x 3 p90 x p95 p2000 x x p2001 i To select the default version on any machine the relevant commands are patran pat p3 To select a specific version on any machine the relevant commands are p2001 p2000 p95 p90 p85 Usage is patran journal_file where journal_file is a file containing a list of PCL commands to be performed on start up of the MSC Patran session 7 1 2 Displaying MSC Patran license usage seepat This is the CSAF custom command script developed to display current MSC Patran license use on the server jayted The command has no parameters Be warned occasionally license tokens are returned prematurely to FLEXIm from some MSC Patran sessions which leaves the sessions running in an indeterminate state and also then permits new sessions to be started even if the number of sessions exceeds the license limit When this event occurs the lost session still continues but may have difficulty as it may have to wait until another token becomes available It is recommended that a more thorough check be made on the state of your MSC Patran session by using the command hey
48. See the MSC Nastran Installation and Operations Guide 1 for information on UWM 6080 and generating timing data The default is machine dependent This value may also be set with the sys28 keyword fbsmem number Reserves memory for faster solution of Lanczos method of eigenvalue extraction See the MSC Nastran Quick Reference Guide 4 Section 5 EIGRL Bulk Data entry This value may also be set with the sys146 keyword fbsopt number Selects Forward Backward Substitution methods This value may also be set with the sys70 keyword massbuf number Half the number of buffers to be set aside for storing the mass matrix in memory This value may also be set with the sys199 keyword mpyad number Selects deselects multiplication method This value may also be set with the sys66 keyword newhess number Request complex eigenvalue method See the MSC Nastran Quick Reference Guide 4 Section 5 EIGC Bulk Data entry and the MSC Nastran Numerical Methods User s Guide 13 This value may also be set with the sys108 keyword 39 DSTO GD 0435 40 numseg number Lanczos High Performance Option number of segments See also the NUMS field on the EIGRL Bulk Data Entry On a DMP job the default is numseg dmparallel_value This value may also be set with the sys197 keyword parallel number Shared memory parallel SMP processing selection This keyword defines the number of processors to be used in the shared m
49. The aim of the catalogue is to provide references to past and present work that was conducted using the CSAF so that any user may obtain assistance from the reports and advice It may also be possible for users to obtain examples from others who may have recently done similar work using the same or different FEA codes DSTO GD 0435 4 CSAF Hardware The following sections provide an overview of the computing hardware that is utilised by the CSAF The first section 4 1 covers hardware that is directly managed by the CSAF Team The last two sections 4 2 4 3 cover hardware managed and operated by contractors or other sections of DSTO for which the CSAF provides guidance and assistance in the management and day to day operations 4 1 Hardware managed by AVD This section details the computer hardware of the CSAF and also lists the software available on each server and workstation platform The specific FEA software that is available on each platform is described in detail in sections 6 and 7 and examples of typical operations to perform FEA on the CSAF are given in section 8 4 1 1 Main AVD FEA server The main CSAF FEA server is an HP 9000 Series 700 C class Model J7000 workstation called jayted which is shown in Figure 2 It is located in the CSAF Workstation Room in Bldg 3 Its hardware specifications are e 4x 440 MHz PA Risc 8500 CPUs e 8GBRAM e 200 GB disk space e HP UX 11 0 Operating System The main functions of jayted ar
50. a file name is the standard input is compressed to the standard output The gzip command will only attempt to compress regular files In particular it will ignore symbolic links By default gzip keeps the original file name and timestamp in the compressed file Compressed files can be restored to their original form using gzip d or gunzip The usage of the commands is gzip acdfhlLnNrtvV19 S suffix name gunzip acfhlLnNrtvV S suffix name and the more typically gzip file_list gunzip file_list 5 4 16 Remote login and file copying operations rlogin rcp and rhosts Remote operations such as logging in on a remote machine with the rlogin command and copying of data with the rep command depend on the existence and proper configuration of a rhosts file on the remote host This remote rhosts file must contain an entry allowing the current user on the local host to have access to the account on the remote host The file format is a simple list of entries one per line listing each hostname username pair that is granted remote access to the machine where the file resides For example for a user goldylocks with accounts on three different hosts jayted armadillo and poison the following entries in the rhosts files on each of the hosts will allow remote login and copy operations to be performed between any of the hosts jayted goldylocks armadillo goldylocks poison goldylocks DSTO GD 0435 Some h
51. a new file you use cat file1 file2 gt newfile To puta file at the end of an existing file type cat file1 gt gt existingfile 5 4 8 Searching for and inside files find grep The command find is used to find files with various attributes It has many options This makes it somewhat awkward for just searching for a file by name For example the command find name dat print finds all the files in the current directory and any directories below it that have a name which ends in dat and then prints the result of the search at the terminal The program grep looks inside files for specified text For example grep e Analysis model dat 21 DSTO GD 0435 22 will search the file model dat for any occurrences of the text Analysis and then print at the terminal any lines containing the text If you are searching in more than one file as in grep Analysis dat it will print the name of the file in which the text was found 5 4 9 Changing the permissions on a file chmod The permissions on a file act to control who can read and change the file This is described in full detail in the section on File Permissions 5 4 10 The chmod command allows the user to either specify a new set of permissions to activate for a file or to add to the existing access permissions for a file The command itself is fairly simple i e chmod symbolic_mode_list filename However the multiple ways to specify the permission mode set to be appl
52. allation and Operations Guide 1 This value may also be set with the sys114 keyword buffsize number estimate Size in words of a GINO buffer If buffsize estimate is specified the BUFFSIZE will be determined by estimate see section 6 1 4 Otherwise the value must be one plus a multiple of the disk block size in words The default is machine dependent see Appendix Cin the MSC Nastran Installation and Operations Guide 1 This value may also be set with the sys1 keyword cpyinput 0 or 1 Copy Input File flag where 0 means no 1 means yes The default is 0 no copy This value may also be set with the sys305 keyword dbs pathname_prefix Alternate user database prefix Overrides scratch yes If the prefix is a directory jid basename is appended The default is dbs jid basename When used for remote processing this pathname must be valid on the remote system If dmparallel gt 1 unique database directories may set for each task using the character to separate entries the names will be paired with the tasks in round robin order scratch yes no mini post Delete database files at job completion scratch yes is equivalent to the FMS statement INIT MASTER S Setting the dbs keyword in an RC file or on the command line overrides scratch yes scratch mini selects the mini database option this reduces the size of the database if it will only be used for data recove
53. andesoespessttosns 5 3 2 CSAF policy on data management sesseserererescosoreseseseseseseerososososesereeeososesesesesesese 5 3 3 Responsibilities Of US C88 si scsceccesceteic cece tisevertssvelsdccsesgiasiatesstivsyeniadstelederdaseieviests 5 3 3 1 General data and resource ManageMEeNt ccs ese eseseeeseseteteees 5 3 3 2 Backup and archiving of data sssssssesssessesessssesesrsserseresrssenresesesreseneesess 6 3 4 Supervision of new novice Users esesseserereseseseseseesosososeseeeosososesesereeeososesesesesesese 6 ESAF HARDWARE osrin nennen n ne a a e ie a 7 4 1 Hardware managed by AVD csccsscrccscessscessesecscsesnessseeressesecessesescesneserseres 7 Alt Mam AVD FBA SOY OF arnie a E E ross ies E A e Ee AE aeri 7 41 2 Secondary AVD SERVER vissststesss aitccassnt anne AE ENEE EE EERSTE EPESA ENEAN EEEE S 8 4 1 3 Main AVD graphics workstation sssssssssssessesessesesessesineesessesenrereseesesren 9 AINA Otherworkstati nS isise ini eae israr S EEE E E AES 10 AN5 0 Xternals nen a i e Rese a E E E eE 11 4 1 6 PCs with X emulation software s sssssessseseesesiesesesrssissesesresenresesesreseee 12 4 2 Hardware managed by F 111 SOP eesesesesesesroroseserercesosoreseseseseseseororosososesereesosese 12 421 SGLO tane workstations seresa i t i aag a a i e 12 4 3 Hardware managed by SCIS essesesereseseseseseeroroseserercesososeseseseseseseesorososeseseesesosese 13 Aod NIC SOG OF spi suc renh ea a EE
54. arameters Also includes appendices with Item codes and Degree of Freedom Sets MSC Nastran DMAP Programmer s Guide version 2001 5 Explains what DMAP functions are and how to use them with various MSC Nastran analyses It is intended for more experienced users MSC Nastran Reference Manual version 2001 6 The MSC reference for MSC Nastran provides a full description of all MSC Nastran commands and statements and parameters 9 1 3 User s guides a b Getting Started version 2001 7 Guide on how to begin an analysis and the recommended steps required to carry out an analysis with MSC Nastran Linear Static Analysis version 2001 8 Guide on how to perform linear static analysis with MSC Nastran Basic Dynamic Analysis version 2001 9 Guide on how to perform basic dynamic analysis with MSC Nastran Advanced Dynamic Analysis version 2001 10 Guide on how to perform advanced dynamic analysis with MSC Nastran Design Sensitivity and Optimisation version 2001 11 Guide on how to perform design sensitivity and optimisation analysis with MSC Nastran Thermal analysis version 2001 12 Guide on how to perform thermal analysis with MSC Nastran Numerical Methods version 2001 13 Guide on the numerical methods available for use in various analyses with MSC Nastran Aeroelastic Analysis version 2001 14 Guide on how to perform aeroelastic analysis with MSC Nastran User Modifiable version 2
55. art of a file tar 1 tape file archiver tee 1 pipe fitting telnet 1 user interface to the TELNET protocol tftp 1 trivial file transfer program time 1 time a command timex 1 time a command report process data and system activity tset reset 1 terminal dependent initialisation touch 1 update access modification and or change times of file umask 1 set or display the file mode creation mask uniq 1 report repeated lines in a file uptime w 1 show how long system has been up and or who is logged in and what they are doing 97 DSTO GD 0435 98 uuencode encode decode a binary file for transmission by mailer uudecode 1 vi view screen oriented visual text editor vedit 1 vis inv 1 make unprintable and non ASCII characters in a file visible or invisible wall 1M write message to all users wc 1 count words lines and bytes or characters in a file whereis 1 locate source binary and or manual for program write 1 interactively write talk to another user xargs 1 construct argument list s and execute command xdm 1M X Display Manager with support for XDMCP xjdm 1 monitor network printing devices xjmore 1 display a file in a scrollable Motif window xkill 1 kill a client by its X resource xIsclients 1 list client applications running on a display xmkmf 1 create a Makefile from an Imakefile xpr 1 print an X window dump xre
56. asks to a host than processors This does not prevent other MSC Nastran jobs or users from using the processors The default is hostovercommit no hosts host host Distributed systems only List of distributed memory processing hosts This keyword defines the list of candidate hosts to be used for distributed memory parallel analysis See also the dmparallel keyword The default is machine dependent on this platform it is the current host see Appendix C in the MSC Nastran Installation and Operations Guide 1 mergeresults yes no Distributed systems only Indicates results are to be merged by master node numseg number Lanczos High Performance Option number of segments See also the NUMS field on the EIGRL Bulk Data Entry On a DMP job the default is numseg dmparallel_value This value may also be set with the sys197 keyword remd pathname nastran command pathname on the remote or distributed nodes This keyword may be specified on the command line RC file or in the command initialisation file If specified in an RC file the version keyword must be defined on the command line or in the command initialisation file sdirectory pathname Directory for scratch files This is the default directory for user database files if scratch yes The default is taken from the TMPDIR environment variable if it is defined otherwise it is machine dependent see Appendix C in the MSC Nastran Installation and Operations
57. astran FE scratch files go into here by default Data is removed regularly 2 Access to CSAF is usually via XDMCP logins using either X Win32 software or HP Labtam or Tektronix X terminals 3 CDE is the desktop window manager 4 Software available quick list subject to change 99 DSTO GD 0435 100 MSC Patran v 2001 amp 2003 commands p2001 amp p2001 patran p3 MSC Nastran v 2001 amp 2004 commands nasi2001 amp nast2004 nastran ABAQUS v 6 2 7 6 3 1 commands abg627 amp abq631 abaqus Xemacs v21 1 command xemacs Netscape v4 79 command netscape Mozilla v1 6 command mozilla Tecplot v9 0 command tecplot Zencrack v7 3 command runzcr73 5 The present software license agreements allow us to run up to following number of simultaneous jobs on each server FEA Licences on Server Software jayted poisson2 bigted patran 10 abaqus 2 nastran 2 pafec 2 zencrack 0 Note that zencrack uses the abaqus seat on poisson2 6 Anything else If you have ANY problems questions or requests in relation to the CSAF then please mail them to AVD CSAF Help avdcsafhelp dsto defence gov au 7 You have also been added to the AVD CSAF Users mail list through which you will receive regular updates on the AVD CSAF 8 As a matter of high priority please familiarise yourself with the DSTO POLICY on Information System Security Practice amp Procedures IS SPP For the DSTO RESTRICTED Network http web vic dsto
58. benefits of more efficient utilisation of the CSAF resources by all users It will also help to enable a higher quality of FEA to be undertaken by users as well as enabling task managers to be more informed about the CSAF and therefore better able to utilise this important set of resources Authors S Sanderson Air Vehicles Division Mr Sanderson commenced work at the Aeronautical Research Laboratory in 1981 He has developed flight data reduction and analysis software for Mirage F 111 and F A 18 projects Several of these programs have been implemented by NAE for part of their data reduction in the IFOSTP project Since 1992 Mr Sanderson has undertaken finite element analysis of composite and bonded structures for the F 111 and F A 18 aircraft and provided training in finite element modelling and analysis In 1998 Mr Sanderson was appointed as the Systems Administrator of the Air Vehicles Division Computational Structural Analysis Facilities within Platforms Sciences Laboratory Contents INTRODUCTION sonnii eate Gain seauentDadeshretetscnua D texans 1 OVERVIEW OF CSA FACILITIES AND USAGE ccccsssssssssescssscssssssssssssesesesseseees 2 2 1 CSAF team responsibilities icc ccsisscsstisp cided adcesctansensdoi adceattaiocaedavascoatessveeedsaadcaestiae 4 POLICY OF USE sda suscutssnscehsasesuteseianyscacbidesaaracaises Aauassaan asad ane caH ae 5 3 1 Conditions of access to the CSAP s ss c cssinseicassessnnessssadesstonsessstessecsesa
59. between Unix servers Remote copying is done using the rep command which requires that a properly configured rhosts file exists on both servers The rhosts file must list the remote user name and host name to be permitted access to the local account For an illustration of this procedure see the examples provided in Section 5 4 16 8 3 Transferring data to a PC It is not possible to directly transfer data from a Unix server to a PC in the vast majority of cases because Windows 95 or 98 are not capable of running an ftp server to accept the connection from the Unix server Windows NT Windows 2000 or Windoze XP can run an ftp server but they require it to be specifically installed and configured The only way most Windows users can transfer data is by using an ftp program from their PC It is outside the scope of this text to cover the multitude of variations of ftp programs available Help with setting up a Windows based ftp program should be sought from your nearest SCIS Computing Help Desk 8 4 Recommended generic modelling procedures The following sections will outline recommended generic procedures that may be used to perform FEA using MSC Nastran ABAQUS or PAFEC on the CSAF The aim of these is to give users a general guide as to how FEA should be carried out to meet CSAF and NAFEMS guidelines without going into all of the intricate details The set of common steps follows After that specific procedures are given in separate secti
60. bs viewer s ssesssesssesessssieseresreseereressses 63 2a abag s HOE a as esis r eas aa e r a a ites 64 Z2 ab g s converten ena ninia e E i tuba E R a ean tie 64 7207 abagus Upgrade netsese neeite eee ias dso gas heen xo ea oaphss aes EEES RES Bibione 64 TS PACSYS PAFEC vik icc covsstsxsevacaaaevisccnayisectnsaisecinevaagetpteansteay estoveaea n 64 7 3 1 Processing output of PAFEC jobs puppies cc ceeeeseee eee eeeees 64 7 3 2 PAFEC Interactive Graphics System pigs c ssssvsessdeonaiseseastovesessens 65 7 3 3 Printing plots from pigs plotq ss s ssascbssavasouseaeesats iossatssenaresaisvasabsoreneeas 65 74 AmteeTecplotsaran asnan i EE E R ai tiie 66 7 4 1 Scientific plotting of data tecplot sssssesesesessessssesesresereeressesenresesesses 66 79 WES CIN GS CAND ys sos esicncgesuno terete se cenerand ionisoi resis de danke ei E seei iaeei oi konein ii iaeiei is 66 7 5 1 Creating and printing plots from MSC Nastran jobs plotps 66 7 6 TMP SLIM and VisiOn sessesseseessessessessesressossessoscosesscoresscoresroseeseoseoseoneosesseoseesessees 67 7 6 1 Specialised processing of large MSC Nastran jobs slim 004 67 7 6 2 Specialised processing of large MSC Nastran jobs vision 68 Tad NCBA B bMS sicccscacsccyiescitcctasscscsas ov steaaaassessies ev eueaesescusesstscuctassulundessneueieniedestaneseieiads 68 7 7 1 Text editors dtpad or vuepad cscsctcdirctsscsiviselder
61. e The user may customise this file 5 1 3 Startup files profile shre There are a number of files that control how various aspects of Unix will work for you You can put commands into these files and thereby customise your environment The filenames of these files often start with a dot and often they are collectively referred to as your environment files They may also be given various other names like dot rc files startup files etc Files that begin with a dot are not listed with the standard Is command so they are sometimes also called hidden files You can get a listing of all these files using Is a or Il a For the Bourne Korn and Posix shells the profile file is read when you log in It controls the messages you get initially sets the terminal type etc The login file does the equivalent for C shells As the Posix shell is the default for the CSAF most of the things you will probably want to do involve putting things into your shrc file Commands in the shre file are executed every time you start a Posix shell The profile is only read when a login shell is started The system automatically launches a login shell when you initiate a new connection At any other time you may also cause a new terminal emulator to start up as a login shell If you want to have various aliases available whenever you are logged in you may add to the existing list of alias commands in your shrc file 5 1 4 What the command line pro
62. e archives in and out duplicate directory trees cron 1M timed job execution daemon crontab 1 user job file scheduler csh 1 a shell command interpreter with C like syntax cut 1 cut out extract selected fields of each line of a file date 1 display or set the date and time diff 1 differential file and directory comparator diff3 1 3 way differential file comparison elm 1 process electronic mail through a screen oriented interface enable enable disable LP printers disable 1 env 1 set environment for command execution fbackup 1M selectively back up files find 1 find files finger 1 user information lookup program fold 1 fold long lines for finite width output device frecover 1M selectively recover files grep egrep search a file for a pattern fgrep 1 groups 1 show group memberships gs 1 Ghostscript PostScript and PDF language interpreter and previewer head 1 give first few lines id 1 print user and group IDs and names kill 1 send a signal to a process terminate a process ksh rksh 1 shell the standard restricted command programming language In 1 link files and directories login 1 sign on start terminal session mail rmail 1 send mail to users or read mail mailx 1 interactive message processing system make 1 maintain update and regenerate groups of programs makedepend 1 create dependencies in makefiles DSTO GD 0435
63. e for who Same as x If file is not a directory and the current file permissions include the execute permission Is 1 displays an x or an s for at least one of user group or other then add or delete the execute file permission for who If file is not a directory and no execute permissions are set in the current file mode then do not change any execute permission Or one only of the following letters u Copy the current user permissions to who 23 DSTO GD 0435 24 g Copy the current group permissions to who o Copy the current other permissions to who The operations are performed in the order specified and can override preceding operations specified in the same command line If who is omitted the r w x and X permissions are changed for all users if the changes are permitted by the current file mode creation mask see Unix man page umask 1 The s and t permissions are changed as if a was specified in who Omitting permission is useful only when used with to delete all permissions b Numeric Mode Obsolescent Absolute permissions can be set by specifying a numeric_mode an octal number constructed from the logical OR sum of the following mode bits Miscellaneous mode bits 4000 u s Set user ID on file execution file only 2000 g s Set group ID on file execution file only 1000 u t Set sticky bit see chmod 2 Permission mode bits 0400 u r Read by owner 0200 u w Write b
64. e to perform the bulk of the FEA computations which consists of all sizes of PAFEC jobs and small to medium sized jobs using MSC Nastran and ABAQUS and the bulk of FEA pre post processing using MSC Patran and Tecplot It also has compilers for the ANSI C C and Fortran 90 languages to allow users to develop their own applications for pre post processing of FEA data It also acts as the main backup server for all the CSAF computer systems DSTO GD 0435 MUTANS eenn a Figure 2 CSAF main FEA server jayted The system enclosure with console on top is on the left The scratch disk tower case CD ROM tower case and DDS3 tape unit are in the middle The Viper2 RAID system enclosure containing the home areas is on the right with the temporary work area disks and a DLT4 tape unit on top 4 1 2 Secondary AVD server The secondary CSAF server is an HP 9000 Series 800 K class Model K260 server called bigted and is shown in Figure 3 It is located in the CSAF Workstation Room in Bldg 3 Its hardware specifications are e 2x 180 MHz PA Risc 8200 CPUs e 1GBRAM e 60 GB disk space e HP UX 10 20 operating system The primary function of bigted is to perform PAFEC FEA It has several levels of the PAFEC suite of FEA applications installed Note that the current level 8 6 of PAFEC that is installed on bigted is limited to running under HP UX 10 20 bigted has no other FEA codes but it does have the PUPPIES pre post processing software insta
65. elp subpanel Through this subpanel various actions such as the Help Manager and Man Page Viewer may be used to access information In general these actions invoke some Motif based wrapper to aid the user to access system information by putting the information inside a window with a scrollbar and sometimes allowing the user to search for various expressions For a description of how to use the command line version of the man command see section A 1 5 2 Syntax of commands and parameters The syntax used within this text to describe the various commands and their parameters is command opt_name opt alt1 alt2 alt3 req_name user_input where command is the command name denotes a list of optional parameters or keywords denotes a list of required parameters or keywords 17 DSTO GD 0435 18 fast sae denotes a set of mutually exclusive parameters or keywords req_name is a required keyword parameter opt_name opt are optional keyword parameters alt1 alt2 are alternate selectable keyword values default is underlined to indicate that it is a default value user_input is a user supplied input parameter or file name 5 3 Unix commands The following sections define what is meant in this text by basic and advanced Unix commands The distinction is fairly subjective some users may need to use only a few of the very basic Unix commands while others may find that their needs soon require the regular use of so
66. emory parallel modules There is no default value This value may also be set with the sys107 keyword rank number Set the rank update and minimum front sizes in the sparse modules The default is machine dependent see Appendix C in the MSC Nastran Installation and Operations Guide 1 This value may also be set with the sys198 and sys205 keywords real memory_size The amount of open core memory that certain numerical modules will be restricted to This keyword may be used to reduce paging at the potential expense of spilling Valid memory specifications are nB nW nKB nKW nK nMB nMW nM nGB nGW nG n physical and n virtual sparse number Sparse matrix method selection This value may also be set with the sys126 keyword usparse number Unsymmetric sparse matrix method selection This value may also be set with the sys209 keyword d Distributed execution keywords only if dmparallel is specified dmparallel number Distributed systems only Distributed memory parallel DMP processing selection This keyword defines the number of tasks to be used ina distributed memory parallel analysis This value may only be set on the command line The value must be null to cancel distributed processing or a DSTO GD 0435 number greater than 0 to request distributed processing See also the hosts keyword There is no default value hostovercommit yes no Distributed systems only Allow this job to assign more t
67. ent settings and 26 Note that all servers in the CSAF are running 64 bits operating systems hence this parameter is not required scratch This option is used to specify the name of the directory used for scratch files On UNIX platforms the default value is the value of the TMPDIR environment variable or tmp if TMPDIR is not defined On Windows platforms the default value is the value of the TEMP environment variable or TEMP if this variable is not defined During the analysis a subdirectory will be created under this directory to hold the analysis scratch files The default value for this parameter can be set in the environment file see ABAQUS Standard User s Manual 24 Section 3 4 1 Using the ABAQUS environment settings and 26 If the scratch files are too large for the scratch directory auxiliary scratch directories can be specified using the aux_scratch parameter in the environment file The scratch file will be split once split_scratch also set in the environment file is exceeded startup This option is available only for ABAQUS Design It specifies the name of the file containing Python configuration commands to be run at application startup Commands in this file are run after any configuration commands that have been set in the environment file noenvstartup This option is available only for ABAQUS Design It specifies that all configuration commands in the environment files should not be run at application
68. erence Versions 9 0 and 2001 21 MSC Software MSC Patran Online Documentation All MSC Patran Versions 10 2 ABAQUS 22 ABAQUS Getting Started with ABAQUS Standard Interactive Version Version 6 2 23 ABAQUS Getting Started with ABAQUS Standard Keywords version Version 6 2 online only document 24 ABAQUS ABAQUS Standard User s Manual Volumes I II and II Version 6 2 87 DSTO GD 0435 25 ABAQUS ABAQUS Viewer User s Manual Version 6 2 26 ABAQUS ABAQUS Online Documentation Version 6 2 online manual 27 ABAQUS ABAQUS Release Notes Version 6 2 28 ABAQUS ABAQUIS Site Guide Version 6 2 29 ABAQUS ABAQUS Example Problems Volumes I and II Version 6 2 30 ABAQUS ABAQUS Benchmarks Manual Version 6 2 online only document 31 ABAQUS ABAQUS Verification Manual Version 6 2 online only volume 32 ABAQUS ABAQUS Keywords Manual Version 6 2 33 ABAQUS ABAQUS Theory Manual Version 6 2 online only volume 34 ABAQUS ABAQUS Input Files Version 6 2 online manual 10 3 PACSYS PAFEC 35 PACSYS PAFEC FE Data Preparation Manual parts 1 3 Level 8 36 PACSYS PAFEC FE Interactive Graphics Reference Manual parts 1 3 Level 8 37 PACSYS PAFEC FE PIGS Option Selector Level 8 38 PACSYS PAFEC FE Theory Manual 10 4 Amtec Tecplot 39 Amtec Engineering Inc 13920 SE Eastgate Way Suite 220 Bellevue WA 98005 USA Tecplot User s Manual Version 10 0 10 5 TMP SLIM and Vision
69. ers are B W KB KW K MB MW M GB GW G smemory number Number of GINO blocks of SCRATCH and SCR300 files kept in open core The default is machine dependent see Appendix C in the MSC Nastran Installation and Operations Guide 1 sscr db_size estimate Default size in GINO blocks of the SCRATCH and SCR300 DBsets This number may also be specified in words or bytes if followed by a unit modifier If sscr estimate is specified the DBset size will be determined by estimate see section 6 1 4 The FMS INIT statement overrides this keyword The default is machine dependent see Appendix C in the MSC Nastran Installation and Operations Guide 1 Valid unit modifiers are B W KB KW K MB MW M GB GW G sysfield string Specifies a default value for the SYS keyword on all FMS ASSIGN statements associated with DBsets The string specification is not case sensitive There is no default value use_aio yes no HP UX systems only Enables the HP AIO library for database I O This value may also be set with the USE_AIO environment variable The environment variable overrides the RC files the DSTO GD 0435 command line overrides the environment variable The default is use_aio no The CSAF default is use_aio yes c Numeric method keywords config number Configuration number This value is used to select the machine timing data You may need to set this value if USER WARNING MESSAGE 6080 is encountered
70. evel for the current directory overrides global default 59 DSTO GD 0435 60 7 CSAF FEA Pre Post Processing Applications This section details the specific commands to use when pre and post processing data for the various FEA applications on the CSAF The commands are separated into standard vendor components and customised CSAF commands Table 7 shows the matrix of vendor commands and Table 8 shows the custom commands available on each server Users are expected to be familiar with these commands The Section column in each table refers to the relevant section in this text in which the detailed descriptions and syntax for use of these commands is given Relevant references are listed in sections 9 1 9 2 9 3 9 4 9 5 9 6 and 9 7 Table 7 Vendor application command matrix iia Name of Server Application Command Section jayted bigted farted poisson2 ardvark ABAQUS abaqus viewer x x 7 2 1 ABAQUS abaqus doc x x 7 2 3 ABAQUS abaqus convertenv x x 7 2 4 ABAQUS abaqus upgrade x x 7 2 5 MSC Patran patran x x x x 7 1 1 PAFEC pigs x 7 3 2 PAFEC puppies 7 3 1 PAFEC plotq 7 3 3 tecplot x 7 4 1 slim x 7 6 1 Table 8 CSAF custom application command matrix Name of Server Command Section jayted bigted farted poisson2 ardvark seepat x x 7 1 2 fedel x x x 6 1 4 pafdel x 6 3 2 7 1 MSC Patran 7 1 1 Starting the
71. f one command and makes it the input to the next command For example 25 DSTO GD 0435 26 ll more takes the output from Il and sends it to the program more which displays it page by page The redirects work similarly but they connect standard input or standard output to a file The greater than sign gt sends the output of the previous command to a file For example Is gt file1 sends the result of Is i e a list of the files in the directory to a file called file1 The double greater than sign gt gt is similar but it appends the result to the file The less than sign lt takes the file that is after it and uses its contents for input to the command that precedes it An example is aprogram lt commd in gt commd out which takes the contents of the file commd in and sends it as input to the program aprogram After aprogram processes the file the result is put in the file commd out The command cat has a special role in all of this It takes a file and sends it to standard output Thus cat file sends the file to the terminal screen and cat filel gt gt file2 puts the contents of filel at the end of file2 You can put a group of files together in a single file using cat file1 file2 file3 gt newfile You can combine many commands pipes and redirects For example ps ef grep patran gt patran_process list lists all the processes running and pipes this result to grep patran This looks for all the lines that
72. fits of more efficient utilisation of the CSAF resources by all users as well as enabling better quality FEA to be undertaken It will also enable task managers to be more informed about the CSAF and therefore place them in a much better position to utilise the full potential of this important resource DSTO GD 0435 2 Overview of CSA Facilities and Usage The AVD CSAF forms the backbone of many AVD tasks undertaking FEA and it is therefore imperative that AVD has and maintains reliable modern and capable facilities for CSA These facilities presently include a Hewlett Packard HP 9000 Series 700 Model J7000 4 processor FEA Server system a Silicon Graphics Inc SGI Origin 2000 16 processor Numerically Intensive Computer NIC system an HP 9000 Series 800 Model K260 2 processor system an HP C240 graphics workstation peripherals commercial finite element analysis software packages e g MSC Nastran MSC Patran ABAQUS and PAFEC scientific plotting software Tecplot Fortran and C C compilers text editors debuggers backup and system management software and other assorted workstations and X stations that facilitate user access A generalised representation of the major hardware features and the network topology of the CSAF is shown in Figure 1 The NIC administrated by SCIS and located in the Fishermans Bend Computer Centre performs the long computationally intensive FEA processing using software purchased by AVD The HP FEA Server
73. fresh 1 refresh all or part of an X screen xwd 1 dump an image of an X window zcmp zdiff 1 compare compressed files zerep 1 search possibly compressed files for a regular expression zmore 1 file perusal filter for crt viewing of compressed text znew 1 recompress Z files to gz files DSTO GD 0435 Appendix B New user mail message B 1 New User mail message template Outlook 2000 template file jayted New account8 oft Date 2005 01 11 This and similar templates for bigted etc are located in the following shared folder on Luniss public MSoffice Template Sent to XXX CC AVD CSAF Help root jayted dsto defence gov au TaskManager Subject jayted user account setup for Xxx Dear Xxx Welcome to the Air Vehicles Division Computational Structural Analysis Facilities Name XXX Task manager xxxman Your task no aaaaa Your task W As aaaaa You now have a new account on jayted Your home directory is home username user name username user id jiii group name XXXXX group id jiii login shell sh posix kkkkkkkkkkkk password Notes 1 There are two user areas and two scratch areas a home 118GB You live here amp work on small medium jobs Data IS backed up b tmpwrk 136B You work on larger jobs here Data is NOT backed up c tmpfe abaqus 68GB all of your abaqus FE scratch files go into here by default Data is removed regularly d tmpfe msc 68GB all of your n
74. g fil new is not allowed for ABAQUS Explicit runs globalmodel This option specifies the name of either the global model s results file or the output database from which the results are to be interpolated to drive a submodel analysis The file extension is required if both the results file and the output database exist This option is required whenever the SUBMODEL option or the BOUNDARY SUBMODEL option in the input file indicates that data are to be read from the global model s results 53 DSTO GD 0435 54 cpus This option specifies the number of processors to use during an analysis run This feature is not available on all systems Use information local to learn about local multiprocessing capabilities The default value for this parameter can be set in the environment file see ABAQUS Standard User s Manual 24 Section 3 4 1 Using the ABAQUS environment settings and 26 parallel This option specifies the method to use for parallel processing in ABAQUS Explicit and for parallel equation solution in ABAQUS Standard For ABAQUS Explicit the values domain and loop are applicable If parallel domain the domain level method is used to break the model into geometric domains If parallel loop the loop level method is used to parallelise low level loops See Parallel execution Section 7 9 1 of the ABAQUS Explicit User s Manual 26 for more information on these methods The default value for ABAQUS Explicit is loop wh
75. guments tar c x u t v farchive_file file_list where c create archive x extract files from archive u update or add files to archive t test the archive v verbose mode f specify archive file default dev rmt 0m archive_file name of the archive file to open file_list list of files to be added to or extracted from the archive The following commands compress and uncompress files and directory subtrees as indicated a compress reduces the size of the named files using adaptive Lempel Ziv coding If reduction is possible each file is replaced by a new file of the same name with the suffix Z added to indicate that it is a compressed file Original ownership modes access and modification times are preserved If no file is specified or if is specified standard input is compressed to the standard output b uncompress restores the compressed files to original form Resulting files have the original filename ownership and permissions and the Z filename suffix is removed If no file is specified or if is specified standard input is uncompressed to the standard output 27 DSTO GD 0435 28 The usage is compress file_list uncompress file_list The command gzip reduces the size of the named files using Lempel Ziv coding LZ77 Whenever possible each file is replaced by one with the extension gz while keeping the same ownership modes access and modification times If no files are specified or if
76. he Interactive Evaluation of Structures There are three versions on bigted these being 1 93 8 1 and 8 5 Versions 1 93 and 8 1 are compatible with PAFEC level 8 1 Backing Store BS files and version 8 5 for PAFEC 8 5 The commands to access DSTO GD 0435 each version are pup193 pup81 and pup85 respectively The default version is also available with the command pup Presently this is linked to the puppies 8 1 version and the version 8 5 is available through a customised executable called puppies exe which is distributed to users as required Usage is puppies journal_name or pup journal_ name where journal_name the name of a puppies journal file 7 3 2 PAFEC Interactive Graphics System pigs PIGS is the interactive graphics system to process PAFEC jobs It can be used to build new models create new data decks or modules and to process analysis results Itis mostly used for post processing stress strain displacement or thermal distribution data after an analysis Usage is pigs window size 7 3 3 Printing plots from pigs plotq This is the CSAF custom command script developed to print DOGS plot files generated in pigs from PAFEC jobs on the server bigted Note that the PAFEC plot queues have not been enabled on bigted at present Usage is plotq plot_file pafec_print_queue where plot_file a DOGS plot file created by pigs pafec_print_queue a PAFEC print queue 65 DSTO GD 0435 66 7
77. hese online documents accessible via their respective MSC Patran Viewer applications contain information on almost every feature of MSC Patran MSC Patran PCL Programming Reference versions 9 0 and 2001 20 These online documents accessible via their respective MSC Patran Viewer applications contain information on almost every feature of PCL MSC Patran Command Language MSC Patran Online Documentation all versions 21 This online documentation accessible via the respective MSC Patran Viewer applications contains information on almost every feature of MSC Patran including installation operations user references and PCL 9 3 ABAQUS The latest information and answers to FAQs may be obtained on the internet from the ABAQUS home page at http www abaqus com DSTO GD 0435 9 3 1 Training manuals a Getting Started with ABAQUS Standard Interactive Version v6 2 22 This document is a self paced tutorial designed to help new users become familiar with using ABAQUS CAE to create solid shell and framework models and ABAQUS Standard to perform static and dynamic stress analysis simulations It contains a number of fully worked examples that provide practical guidelines for performing structural analyses with ABAQUS Getting Started with ABAQUS Standard Keywords version 23 This online only document is designed to help new users become familiar with the ABAQUS Standard input file syntax for static and dynamic stress
78. ich can be changed in the environment file see ABAQUS Standard User s Manual 24 Section 3 4 1 Using the ABAQUS environment settings and 26 For ABAQUS Standard the values supernode and tree are applicable The default value is supernode which invokes the version of the parallel sparse solver that solves individual fronts in parallel If parallel tree multiple fronts are solved simultaneously in addition to solving individual fronts in parallel domains This option specifies the number of parallel domains in ABAQUS Explicit If the value is greater than 1 the domain decomposition will be performed regardless of the values of the parallel and cpus options However if parallel domain the value of cpus must be evenly divisible into the value of domains The default value is 1 which can be changed in the environment file see ABAQUS Standard User s Manual 24 Section 3 4 1 Using the ABAQUS environment settings and 26 memory This option specifies the number of 64 bit words of memory allocated by the solver input file processor The default is sufficient for most problems If an analysis requires more memory than is currently in use by the solver input file processor it will issue an error message listing the current amount of memory in use Incrementing the memory by 50 is the recommended approach to increasing memory The default value for this parameter can be set with the pre_memory parameter in the environment file see
79. ied can be tricky There are three levels controlling who has access to a file these being user group and other sometimes called world and each level has control of three attributes these being read write and execute permissions The obsolescent method of specifying a mode set is to use a numeric mode see section 5 4 10 which uses an octal number to represent the read write and execute attributes for each of the three levels of control The now preferred symbolic mode list allows the use of character strings with operators The character strings may be quite complex but at least they are close to being human readable The example that follows will illustrate several complex character permission masks that may be used to ensure that exactly the following file access permissions are set the user you has all access permissions users in the same group as you have only read and execute permissions and all other users have read only permissions Any of the following commands may be used to achieve the desired outcome chmod u a g rx o r1 filename or chmod a r ug x u w filename or perhaps the old way is simpler IF you are sure that you have summed all the bits correctly chmod 754 filename 5 4 10 Controlling access to your data with file permissions The chmod command see section 5 4 9 changes the access permissions of one or more files according to the value of symbolic_mode_list see a or numeric_mode see b You can displa
80. igh quality FEA This document presents operating policies and guidelines for the use of the CSAF It is also an instruction manual and comprehensive reference guide intended mainly for new users of the CSAF However more experienced users should also find this document a useful quick reference to information that they are less familiar with It is also recommended that supervisors of the users of the CSAF be familiar with the usage policies The aim of this document is to also provide an overview of the computing hardware and software that comprises the AVD CSAF without going into in depth technical details The key areas covered in this document are i data and resource management ii an overview of the hardware and software available for FEA iii outlines of generic FEA modelling procedures and iv an overview of key FEA manuals and references The specific FEA application software that is supported includes MSC Nastran MSC Patran ABAQUS PAFEC and PIGS and is run on a few high performance Unix servers and workstations From time to time other FEA codes may also be trialled By making a selection of advanced FEA codes available together with maintaining a modern high performance computational facility the CSAF provides AVD with the capability to conduct large scale FEA for through life support of Australian Defence Force aircraft e g F 111 F A 18 P 3C and helicopters e g Blackhawk This document will provide AVD with the bene
81. iles in kilobytes Il or Is 1 Give the long form with permissions and modification date 5 4 3 Moving copying and removing files mv cp rm The mv command moves or renames files The simplest form of use is mv oldfilename newfilename It will also move directories If you use it in the form mv filename directoryname it will move the file into the named directory keeping its old name To change its name you do mv oldfilename directoryname newfilename Copying files is similar to moving them but you use cp instead of mv Beware if you move or copy a file and there already exists a file with your newfilename in the target directory that file will be destroyed To remove a file you rm filename On Unix systems with shared file systems once you remove anything it is gone If you don t like this you can create a safer alias as instructed below There are also regular backups made of files on the home area but an ounce of prevention is worth a pound of cure 5 4 4 Changing creating and removing directories cd mkdir rmdir You can make a new directory using mkdir newdirectoryname You can remove a directory using rmdir directoryname To remove a directory you must first remove all the files it contains To change directories to a directory that is contained in the current directory use cd directoryname To move up one directory cd does the trick To move to a directory on the same level i e both the current directory and the desired
82. ing information is output for all information requests the current version the directory in which ABAQUS is located and the directory in which the information files are located If information environment the current settings of the environment file options are displayed If information local the local installation notes are output If information memory some suggestions for setting memory parameters for analysis jobs are output If information release information is provided about where to locate the current release notes If information status information is provided about where to locate the status reports If information system information is provided about system software and hardware resources operating system level compiler levels processor type graphics board memory etc input This option is used to specify the input file name which may be given with or without the inp extension if the extension is not supplied ABAQUS will append it automatically If this option is not supplied the procedure will look for an input file called job name inp in DSTO GD 0435 the current directory If job name inp cannot be found the procedure will prompt for the input file name user This option specifies the name of a FORTRAN source or object file that contains any user subroutines to be used in the analysis The name of the user routine may contain a path name and may be given with or without a file extension If an ex
83. ints on setting up your rhosts file a Some machines require the last entry to be terminated with the new line character so make sure that it s there b Alsosome machines i e like SGI s don t define the IP network domain and hence will require the host names to be fully resolved c Itcan be useful to include the local host hostname username pair in the list as in the example above thus making the file universal and therefore making it quick to update or recover from to any of the hosts in your network if it is lost or corrupted Once the rhosts file is sorted out it then becomes a fairly straightforward matter to perform rlogin or rcp operations The syntax for rlogin is rlogin hostname e g using the above example rhosts file for a user goldylocks on jayted the command rlogin armadillo will log them into the goldylocks user account on armadillo without prompting for a password The rep command allows the users to copy data between the user accounts on any of the authorised hosts in the rhosts file using similar syntax to cp the copy command The format of the rep command is rcp user host source_file user host dest_file The defaults for the user and host are the current username and hostname Both the user and host may be omitted where the source or destination is the local host Using the above example rhosts file for the user goldylocks logged into jayted the following command rep armadillo rem_file wil
84. is good for removing a list of files called stuff1 dat stuff2 dat but it will also remove the file special dat that you forgot was also there To be safe you can always do Is s dat to check what your wildcard is matching before you take action One dot and two dots refer to the current directory and the directory one level up respectively Thus cd moves you one level up the directory tree The tilde is used to refer to home directories For example cd moves you to your home directory and cd zmythe moves you to the home directory of the user zmythe When you give a command that refers to a file or a directory you can always give its full path from your home directory For directories and files that are contained in your current directory you can just give the name For example if you are in a directory called Models 19 DSTO GD 0435 20 that is contained in your home directory and you want to move to the directory Reports that is also in your home directory you can do cd Reports or cd Reports 5 4 2 Listing the contents of a directory Is The command Is gives a list of the names of the files in a directory It can also be used to give the names of certain types of files It has many options Here are some examples Is List all files in the current directory Is dat List all files that end in dat Is a List all files including hidden ones files whose names begin with a dot Is s Give the sizes of f
85. l copy rem_file from the host armadillo to the current directory on jayted An example using the full command syntax is for the user goldylocks on host jayted the command rcp goldylocks poison modeldir datafile armadillo otherdir data_from_afar which will copy the file datafile from the user account goldylocks on the remote host poison into the file data_from_afar in the directory otherdir on the remote host armadillo under the user account goldylocks 29 DSTO GD 0435 30 6 CSAF FEA Applications This section details the specific commands that are required in order to use the various FEA and associated applications on the CSAF Commands to perform pre and post processing are covered in section 7 The commands are separated into standard vendor components and customised CSAF commands Table 4 shows the matrix of vendor commands and Table 5 shows the custom commands developed by the CSAF that are available on each server Users are expected to be familiar with these commands The Section column in each table refers to the relevant section in this text in which the detailed descriptions and syntax for use of these commands is given Relevant references are listed in sections 9 1 9 2 9 3 9 4 9 5 and 9 7 Table 4 Application command matrix Name of Server Application Command Section jayted bigted farted poisson2 ardvark MSC Nastran nastran x x 6 1 1 ABAQUS aba
86. line overrides the environment variable There is no default value out pathname_prefix Alternate output file prefix If the prefix is a directory jid basename is appended The default is out jid basename post command_string User command s run at job completion Every occurrence of post in an RC file or on the command line will be executed Setting a null value i e post will erase the currently saved commands There is no default value pre command_string User command s run at job start Every occurrence of pre in an RC file or on the command line will be executed Setting a null value i e pre will erase the currently saved commands There is no default value processor file_type File type of alternate executable This keyword overrides the default processor subtype selection logic There is no default value ref pathname File containing additional keywords Replaces the local RC file This keyword may only be specified on the command line There is no default value 35 DSTO GD 0435 36 symbol name value Assign a value to a symbolic name the name may be used in a filename reference on the command line in an RC file or in the data file All environment variables can be used as symbols A symbol definition can include an environment variable reference e g symbol mysymbol HOME mydir The environment variable overrides the RC files the command line overrides the environment variable
87. lled as well as Fortran 77 and Fortran 90 compilers DSTO GD 0435 Figure 3 CSAF secondary FEA server bigted showing system enclosure with console on top and disks and CD ROM units on the table at left with bigted s UPS under it Note that the UPS at right is supporting jayted 4 1 3 Main AVD graphics workstation The main CSAF graphics workstation is shown in Figure 4 and is an HP 9000 series 700 C class model C240 workstation called farted It is located in the CSAF Workstation Room in Bldg 3 Its hardware specifications are e 1x 240 MHz PA Risc 8500 CPU e 1 25 GB RAM e 30 GB disk space e HP UX 11 0 operating system The two main functions of farted see Table 2 are to perform data archiving onto CD ROM and for the more graphics intensive pre post processing in MSC Patran of the larger and more complex MSC Nastran and ABAQUS models It does not have any FEA code installed DSTO GD 0435 10 Figure 4 CSAF main graphics workstation farted showing the user console with CD writers and DDS tape units sitting on top of the system enclosure 4 1 4 Other workstations The other CSAF workstation see Table 2 is an HP 9000 apollo Series 700 Model 715 workstation called storm It is located in the System Administrator s office in Bldg 3 Its hardware specifications are 1x 33 MHz PA Risc 8000 CPU 96 MB RAM 9 GB disk space HP UX 10 20 operating system The primary function of storm is remote system adminis
88. lyses with a limit of one MSC Nastran job at a time should be submitted through the NQE queue manager Also on bigted only one PAFEC analysis at a time per user is permitted d Use the CSAF systems and software in a responsible manner with consideration for other users 3 3 2 Backup and archiving of data The user is required to arrange for the archiving of important data a Throughout the life of a project b To ensure that all relevant data from a completed project is archived onto CD ROM with copies distributed to Task Managers and CSAF archives c Itis also highly desirable that the data be removed from the CSAF system after the project has been completed and the data has been archived 3 4 Supervision of new novice users Task Managers must ensure that any new users are supervised by more experienced FE analysts and that all users are fully aware of the policies governing the use of the CSAF This includes having read this document and being briefed on any changes in the current policy and user guidelines that are above and beyond those provided in this document To assist all users but in particular new users the CSAF maintains a catalogue of recent AVD reports on work involving finite element analysis The catalogue also contains lists of many useful references The catalogue is presently available on request from the author S Sanderson and to be eventually made available at http jayted CSAF acetal catalogue html
89. mal acoustic analysis The modelling of composite materials creep fatigue and plasticity are also covered Fracture mechanics in 2 D and 3 D are also covered Note that the 1998 report on quality assurance for finite element work by Callinan and Sanderson 92 identified deficiencies in some published NAFEMS standards and benchmarks at that time As an aside it also demonstrated the reason why NAFEMS continually review and update their publications This highlights the benefit of and even the need to check the consistency and accuracy of your work against multiple sources of reference The NAFEMS publications are categorised under the following headings 9 6 1 The 3 year pack textbooks The topics in this section cover primers to FEA 42 and FE dynamics 43 an introduction to non linear FEA 44 and a background to benchmarks 45 Recent additions include an explicit primer 46 and FE based fatigue calculations 47 83 DSTO GD 0435 84 9 6 2 Why do how to series The why do publications in this section are Why do FEA 48 Why do non linear FEA 49 Why do design optimisation 50 and Why do computational fluid dynamics 51 The how to publications include topics such as how to choose an FE System 52 get started with FE 53 get started in acoustics analysis 54 choose a pre post processor 55 plan an FE analysis 56 interpret FE results 57 understand FE jargon 58 buy FE Services 59
90. mand that messages are allowed to be written to the terminal window in which you submit the job o Submit the analysis with the abaqus command p When the job is completed check the log out files for errors and warnings and in particular make sure that the job has completed q Begin post processing the results with the naked eye or with tecplot or with abaqus viewer or with patran or using any programs you have written or been supplied with for that purpose r Clean up unnecessary files e g log out fil or odb files from the analysis either manually or using the fedel command and the patran session files from the patran session s If required create a new load case or refine the FE mesh in your MSC Patran database or create a new database for the next iteration of the analysis t Remember to update the info in your model index file if you have not already done so u If you are satisfied with your results now write your report v After the report has been done ensure that the essential data is archived w Clean up the directory 8 4 3 PAFEC A PAFEC data deck needs to include the following modules or sections e A control module e PAFBLOCKS finite elements and nodes e The restraints and loads e The materials e And optionally multiple load cases These are the generic modelling steps to carry out a PAFEC analysis after performing the common steps in section 8 4 above a Either i Open your favou
91. me of the more advanced commands Descriptions of Unix and explanations and illustrations of a few selected commands are given in Section 5 4 Reasonably comprehensive quick reference lists of basic and advanced Unix commands together with their key one line descriptions are provided in Appendix A in A 2 and A 3 in particular The command lists are in alphabetical order 5 3 1 Unix commands basic The basic commands are what a user could expect to use on a regular basis while performing FEA on the CSAF Refer to the one line descriptions in Appendix A 2 5 3 2 Unix commands advanced The advanced commands are those that a user could expect to use less frequently but should nevertheless be aware of These commands in general allow the user to perform more sophisticated and complex manipulation of data Refer to the one line descriptions in Appendix A 3 5 4 Unix commands explained Underneath or behind CDE which is the HP graphical user interface GUI UNIX is still used by typing commands These are typed after the prompt on what is called the command line This command line is actually the interface with the Posix shell attached to that terminal If you are connecting to the server using a serial or dumb terminal or are not using a window system you just type the commands that you wish to use If you are using any X window system e g CDE you type Unix commands in a terminal like window DSTO GD 0435 There are basically
92. minutes are integral values it is always saved as seconds There is no default value DSTO GD 0435 ppmdelta memory_size UNIX systems only Used to calculate ppm ppmdelta is added to memory If the value is greater than 1000 the value is added to memory If the value is less than 1000 it is assumed to be a percentage of the executable size The default is ppmdelta 105 Valid memory specifications are nB nW nKB nKW nK nMB nMW nM nGB nGW nG n physical and n virtual prmdelta memory_size UNIX systems only Used to calculate prm prmdelta is added to ppm The default is prmdelta 5120 Valid memory specifications are nB nW nKB nKW nK nMB nMW nM nGB nGW nG n physical and n virtual qclass string UNIX systems only May be used to specify a special class for queued jobs There is no default value qoption string UNIX systems only May be used to specify any queue options not otherwise handled There is no default value queue name UNIX systems only Submit job to queue_name Use submit to define the queue command There is no default value submit queue_name1 queue_name2 queue_command UNIX systems only Queue submittal command s Required by queue Zero or more queue names may be specified A queue name may be up to 15 characters long queue_command is the command that will submit the job to the queue See the MSC Nastran Installation and Operations 43 DSTO GD 0435
93. modelling steps to carry out an ABAQUS analysis after performing the common steps in section 8 4 above a Se gerenog Open patran and create a new database with the analysis code set to ABAQUS the analysis types set to Structural or Thermal as appropriate and the tolerance set to default Create the model geometry Create the finite elements Create the restraints and loads Create the materials Assign the material properties Optionally define multiple load cases Create an analysis deck with the appropriate load cases for the desired solution type Note CSAF policy is to NEVER run an analysis from within patran Close patran Open the data deck with your preferred editor e g dtpad to verify that the deck has the correct solution type and contains all of the load cases and components of the model you want analysed Either reopen patran to fix any problems and rewrite the data deck preferred method or directly edit the deck which is necessary in some cases as MSC Patran does not support all ABAQUS solution types but this also means that the patran database will no longer match the data deck For larger ABAQUS analyses run the abaqus job job_name info memory command to tune memory and buffer size and other abaqus command parameters for this analysis 75 DSTO GD 0435 76 m If necessary copy the data deck and any data include files to the remote host i e poisson2 n Check and set with the mesg com
94. mpt can tell you Most accounts are set up so that the command line prompt gives the user some information about where they are in the file system and what machine they are connected to For example the prompt DSTO GD 0435 auser ted SomeDir tells the user that they are logged in as auser on a machine called ted and that the current directory is called SomeDir 5 1 5 CDE the Common Desktop Environment On the CSAF HP systems the standard login method uses the X Display Manager XDM to start the Common Desktop Environment CDE The CSAF CDE has also been customised The CDE front panel has been extended with the addition of a CSAF apps subpanel Actions also called dt actions for the following applications have been created within this subpanel Acrobat Reader acroread netscape xemacs MSC Nastran Encyclopedia iview ghostview ghostscript gs and tecplot Also in line with the Defence policy for use of the restricted network all screen savers have been enabled with locking set The preferred method of access to the CSAF is through the CDE interface CDE allows the user to perform many commands by clicking on icons and actions with the mouse 5 1 6 On line help there is no help command There is no help command however there is on line documentation available for most Unix commands and programs These documents are called manual pages and are often referred to as man pages On the front panel of the CDE there is a H
95. n directories The directories are arranged in an upside down tree The very top of the tree is the root directory Directories that are contained in other directories are considered to be lower down in the tree When you log in you find yourself in what is known as your home directory It has the same name as your login name For example if you type zmythe as your user name to login then your home directory is named zmythe Your home directory is actually located partway down 15 DSTO GD 0435 16 the tree e g usr people zmythe on the SGI machines and home zmythe on most other systems The list of directories from a file to the top of the tree is called its full path An example of a full path is usr local bin In Unix the slash is used in a path to separate a directory from the one above it in the tree The directory that you are working in is called the working directory the present working directory or the current directory 5 1 2 Posix shell The Posix shell sh is the default shell used on the CSAF HP machines The Posix shell is a superset of the Korn ksh and Bourne sh shells On the CSAF HP systems the shell prompt has been enhanced to display the machine name user name and current directory as illustrated in 5 1 4 This enhancement is done in an environment file shrc which is itself defined within and called from the profile file for each user Several common global aliases are also defined within the shrc fil
96. n is for data checking only No analysis will be performed If this option is used all files necessary to continue the analysis are saved parametercheck This option indicates that the run is for input parameter checking only the PARAMETER option must have been used No analysis or data checking will be performed continue This option indicates that the run is to begin at the point at which a previous datacheck run ended convert The value of this parameter indicates which files will be post processed Results can be converted either immediately following an analysis run as a separate run subsequent to an analysis run or while an analysis is running as follows 1 To run an analysis including a subsequent conversion of the results use the convert option in conjunction with the job and analysis options 2 To convert the results of a previously run analysis use the convert option in conjunction with the job option DSTO GD 0435 3 To convert results from a job that is currently running use the convert option in conjunction with the oldjob option to name the running job and the job option to supply a new name for the files generated by the convert option If convert select the ABAQUS Explicit selected results file job name sel will be converted into a standard ABAQUS results file job name fil If the analysis was run in parallel with parallel domain the separate selected results files job name sel n will be conver
97. n the SCIS server room in Bldg 23 Its hardware specifications are e 16x 200 MHz R10000 CPUs e 4GBRAM e 160 GB disk space 13 DSTO GD 0435 14 e IRIX 6 5 operating system The primary function of poisson2 is to perform large and lengthy numerically intensive computations It has the MSC Nastran and ABAQUS codes installed It is used to run large FEA jobs through a batch queuing system The policy of use of the NIC as determined by the NIC Management Committee is that no post processing of analyses be carried out on this machine Therefore the X display manager XDM has been disabled on this machine and MSC Patran has not been installed DSTO GD 0435 5 CSAF Software Unix Systems This section gives a brief general description of Unix systems and some more specific details about systems associated with the CSAF The general structure of Unix and some of the similarities and differences of the systems are illustrated 5 1 Unix systems shells and environments The basic program that interacts with users on a Unix system is called a shell There are several shells used by Unix common ones being the C shell csh Bourne shell sh Korn shell ksh Born Again shell bash and the Posix shell sh All of the HP systems in the CSAF are set up to use the Posix shell sh with the CDE desktop environment The SGI machines use a Korn shell or an SGI variation of the C shell either csh or tcsh with the SGI Desktop environmen
98. nsion is jnl This option specifies the name of the file containing Python configuration commands to be run at application startup noenvstartup DSTO GD 0435 Commands in this file are run after any configuration commands that have been set in the environment file This option specifies that all configuration commands in the environment files should not be run at application startup This option can be used in conjunction with the startup command to suppress all configuration commands except for those in the startup file 7 2 2 Viewing results of abaqus jobs viewer The old tool to process and view results is called viewer It has the same features as the CAE tool with the exception that it cannot create new databases It will be discontinued in future ABAQUS releases Usage is abaqus viewer database database file replay replay file startup startup file noenvstartup where database database file replay replay file startup startup file noenvstartup This option specifies the database from an analysis to load into the viewer This option specifies a session file saved from a previous viewer session to be replayed when viewer starts up This option is available only for ABAQUS Design It specifies the name of the file containing Python configuration commands that are to be run at application startup Commands in this file are run after any configuration commands that have been set in the envi
99. one are both contained in the same directory use cd directoryname DSTO GD 0435 5 4 5 Looking at the contents of a file more head tail cat The command more filename will display the named file page by page To view the next page you hit the space bar To see just the first few lines of a file use head filename The last part of the file can be viewed via tail filename The command cat filename will cause the entire file to be printed on the screen This means that if the file is longer than a single screen full it will just scroll rapidly by You can of course also look at a file in an editor like dtpad xemacs or vi 5 4 6 Printing files lp lpstat cancel To print a text file you do Ip filename To check the files waiting to be printed you type Ipstat This may also tell you if something is wrong with the printer It may take up to a minute or so for the Ipstat command to complete its work as it needs to interrogate various printer queues on the system If you want to cancel a printing job before it is printed first type Ipstat Under the printer name you will find an ID for your printing job If this ID is b3prt 23 say you can remove the job by typing cancel b3prt 23 To cancel all your jobs queued to a printer type cancel printer u user 5 4 7 Comparing and concatenating files diff cat If you do diff file1 file2 you will get a list of the differences between the two files To take two files and put them end to end in
100. ons for each analysis code MSC Nastran in section 8 4 1 ABAQUS in section 8 4 2 and PAFEC in section 8 4 3 analysis code The common first steps in the procedure are a Assemble all of the information required such as the geometry materials loads and environmental conditions to be modelled b Define the type and extent of the model e g a 2 D linear static analysis of half of the structure using elements with mid side nodes to enable bending stresses to be more accurately analysed c Take the time to verify the boundary conditions A quick sketch of the model here can save you many hours of post processing of results trying to calibrate and or validate the analysis d Select the FEA code to be used All three FEA codes can perform a wide range of analyses quite well However a very loose guide for beginners is to use MSC Nastran for static analysis and ABAQUS for dynamic analysis while PAFEC is generally recommended only for users with previous experience with the 73 DSTO GD 0435 74 application Note that this choice may also be dictated by external factors such as client requests or compatibility with other work Create a directory to contain your new analysis using mkdir Create a plain text file in this new directory called README to contain a brief description of the work in this directory and give the name of your model index file in this directory Create a second plain text file the model index file which is to
101. oubleshooting of X emulation software problems It is recommended that large monitors be used with MSC Patran i e minimum of 17 monitor running at a resolution of 1280x1024 pixels It is also advantageous to communicate to the X server on jayted via a high speed 100 Mb s network connection particularly when manipulating more complex models within MSC Patran 4 2 Hardware managed by F 111 SOP 4 2 1 SGI Octane workstations The two SGI Octane workstations see Table 2 are managed by AeroStructures contract engineers working on the F 111 Sole Operator Program SOP The workstations are SGI Octane 2 workstations called ardvark shown in Figure 6 and outback1 They are located in Bldg 3 Rooms 114 and 104 respectively Their hardware specifications are e 1x 200 MHz R10000 CPU each DSTO GD 0435 e 1 25 GB and 512 MB RAM respectively e 40 GB and 20 GB disk space respectively e IRIX 6 5 operating system The primary function of ardvark is the pre post processing of the large F 111 models using MSC Patran and TMP Vision Slim software It has no FEA codes installed The primary function of outback1 is to perform computations involving the use of the METLIFE fatigue life management program Figure 6 SGI Octane workstation ardvark with DDS4 tape drive and CD ROM at far left shown running TMP Slim software 4 3 Hardware managed by SCIS 4 3 1 NIC server The NIC server is an SGI Origin 2000 server called poisson2 It is located i
102. ous editing operations can be done via the standard Motif text manipulation mechanisms using the mouse or user definable key combinations Text can be cut copied or pasted or dragged to and from the Text Editor and or other compliant application windows Also standard dialogs are presented for accessing files and printing text The Text Editor also provides the following features e Pull down menus for common edit and file operations e Undo of the previous edit operation e Search and replace e Spell checking e Simple formatting e Wrap to fit and overstrike modes e Optional status line allowing cursor positioning by line number e Automatic file save on many abnormal termination conditions e Mechanism for automatic session save and restore DSTO GD 0435 It is usually invoked by CDE but a user may directly start it Usage is dtpad options file_name Useful option standAlone For example to launch a new instance of the editor and run it as a background process in the current terminal dtpad standAlone amp 7 7 2 Text editor xemacs XEmacs is a fully featured editor based on the GNU Emacs package It has a very large set of features and capabilities including recording and playback of keystroke macros as well as its own very extensive built in help system A detailed description of its use is beyond the scope of this text The alias x for xemacs is pre defined in the user s shre file Usage is xemacs
103. performs jobs that pose a medium computational load as well as almost all pre and post processing of FEA models and results The HP FEA Server is capable of handling very big and complex FE models that require large memory and disk capacities User access to these computers is through workstations X terminals or personal computers using X terminal emulation and telnet software Most of the CSA servers workstations terminals manuals and references are housed in the CSAF Workstation Room which is located in Bldg 3 The core function of the AVD CSAF is to provide and manage the main advanced FEA infrastructure within AVD The CSAF computers are linked through the DSTO Defence restricted network See section 3 1 for more details regarding the conditions of access and use of the facilities Most of the CSAF software licenses see Table 1 are node locked to run only on their specific server The MSC Patran licenses served by jayted are an exception and they are available over the network for use on other machines DSTO GD 0435 PAFEC Analysis All sizes of gap mw DLT4 tape library External n DDS 3 tape disk autoloader enclosures HP FEA Server bigted j eee jayted J7000 4 processor NUMERICALLY HP UX 10 20 Approx 8 HP UX 11 00 INTENSIVE COMPUTATIONS users Approximately 50 users Ethernet hub to DSTO network NIC poisson2 SGI Origin a 2000 16 processor User access via X terminals amp PCs
104. queue This option will submit the job to a batch queue If the option appears with no value the job will be submitted to the system default queue Quoted strings are allowed The available queues are site specific Contact your site administrator to find out more about local queuing capabilities Use information local to see what local queuing capabilities have been installed The default method for submitting the job can be set in the environment file by using the run_mode parameter see ABAQUS Standard User s Manual 24 Section 3 4 1 Using the ABAQUS environment settings and 26 after This option is used in conjunction with the queue option to specify the time at which the job will start in the selected batch queue This capability is supported for each individual site through the ABAQUS environment file See the ABAQUS Site Guide 28 for details 55 DSTO GD 0435 56 double This option is used to specify that the double precision executable is to be used for ABAQUS Explicit This option is available only on machines where the default length of a single precision floating point word is 32 bits This option will run the executable for ABAQUS Explicit that was built using double precision floating point word lengths of 64 bits This capability is also supported through the ABAQUS environment file with the environment variable explicit_precision see ABAQUS Standard User s Manual 24 Section 3 4 1 Using the ABAQUS environm
105. qus x x 6 2 1 PAFEC pafrun x 6 3 1 Table 5 CSAF custom application command matrix Name of Server Application Command Section jayted bigted farted poisson2 ardvark MSC Nastran seenast x 6 1 3 MSC Nastran nastbat x 6 1 5 MSC Nastran fedel x x x 6 1 6 ABAQUS fedel x x x 6 1 6 PAFEC pafdel x 6 3 2 PAFEC paflev x 6 3 4 6 1 MSC Nastran 6 1 1 Running a finite element analysis the nastran command The installed versions of MSC Nastran are 70 5 70 7 and 2001 The default version is the latest release available on the system MSC Software provides a number of alternate names to access these commands Assuming that the most recent version is 2001 then the respective lists of commands to use that particular version are nastran msc2001 nastran nast2001 DSTO GD 0435 and msc707 nastran nast707 msc705 nastran nast705 The normal command line to invoke MSC Nastran is of the form nastran input_data_file keyword1 value1 keyword2 value A more complete listing of the MSC Nastran 2001 keywords is given in the following section 6 1 2 However as a starting guide the following short list contains some of the more routinely used keywords when invoking nastran on the CSAF Note that all keywords are described in section 6 1 2 except for the last sys166 which is described in Table 6 memory mem old no news no scr yes buffsize number smem number and sys166
106. rcatedantayasitonsncehvess 83 9 6 NAFEMS references sesseresessescercerosesessoerorcseesoscoreseoroseeroeroeesoeroeesreresreresrereseerorese 83 9 6 1 The 3 year pack textbGokss ccis vanpsstesatas crt iaantien stems caretentans 83 96 2 Why d NOW LO Seriesin siansa aieiaiei dorae es ieta 84 9 6 3 Benchmarks and Te ports nesenie nienti esi 84 9 6 4 Management gUideSr i entartet iee aisre tileese 84 9 7 Unix manuals seisseen eiiean os a kesa Er EE a TSE ES 84 GS Other ref renteSisieesssiriniesirenssei ssns esessessnreniero renses eae rorat teoses renses eai tee 85 10 REFERENCES ninnan nnana niana aia iiai 86 10 1 MSC N stta Neseseri eresien sirsie eerie et a E aa aseene aeoieo st 86 10 2 ABAQUS sicrstscsdesstaasstotsceacvsnsssscontscatcastensoeuadesateentaancoosssssonshtnss stete teea anassen 87 TOS PACS VS PAFEC iien nn aE ER EEEN NRE 88 10 4 Amtec Feeplot cd i scestcscceotevesceassenesascsvanuesavehaccetesssees ia Eosi siess aes rnr asesi 88 10 5 TMP SLIM and VisiOn eesesesseseeseseeseseesesceresessoscoresesroseeeesesresescosesessoseesesessesessesees 88 10 6 NAFEMS references sessesesessereoresceseseeseseoresessoscoresessoseeeesesresescosesessoseesesesreseeeeness 89 10 7 COMI WEVA TIAA LS ccsces assets ces oeseses ds tewanscaccn aba te eatuseaevenseaneactavasovcavstasunsetees ads rE a hak 91 10 8 Miscellaneous scecss ceed evs cou tsussessesevsesei es san cenevedeossvsvwneseveeuabvesssusduseanseviuyexcesepseeeiiens 91 11
107. rite editor e g dtpad and create a new data deck ii Open pigs and create a new structure and save the new data deck definitely not recommended When using pigs also note that the rmlock utility should be employed before and after to ensure that any old PAFEC lock files are cleaned up iii Create or use a program that writes the complete data deck or parts of it highly recommended for any parametric modelling studies g De DSTO GD 0435 Open the data deck with your preferred editor e g dtpad to verify that the deck has the correct solution type and contains all of the load cases and components of the model you want analysed Check and set with the mesg command that messages are allowed to be written to the terminal window in which you submit the job Use the rmlock utility to clean up any old PAFEC lock files Submit the analysis with the pafrun command Use the rmlock utility to clean up any PAFEC lock files left if your job crashed When the job is completed check the log O0 and MON files for errors and warnings and in particular make sure that the job has completed Begin post processing the results with the naked eye or with puppies or with pigs or using any programs you have written or been supplied with for that purpose Clean up unnecessary files e g log O0 BS or SS files from the analysis either manually or using the pafdel command If required create a new load case or refine the FE mesh in your
108. rograms computer systems hardware 19 ABSTRACT This document presents the operating policies and guidelines for the use of the Computational Structural Analysis Facilities CSAF within Air Vehicles Division AVD It has been created to assist users of the CSAF to perform professional high quality finite element analysis FEA FE analysts from many tasks within AVD are using the facilities to conduct FEA with respect to the assessment of structural integrity and technical airworthiness of ADF aircraft This document covers key issues such as data and resource management as well as providing a comprehensive overview of the hardware and software facilities that are available for use It also outlines recommended generic FEA modelling procedures and provides an overview of key FEA manuals and references The specific FEA application software that is covered includes MSC Nastran MSC Patran ABAQUS PAFEC and PIGS Page classification UNCLASSIFIED
109. ronment file This option is available only for ABAQUS Design It specifies that all configuration commands in the environment files should not be run at application startup This option can be used in conjunction with the startup command to suppress all configuration commands except for those in the startup file 63 DSTO GD 0435 64 7 2 3 abaqus doc This command accesses the on line documentation for ABAQUS The documentation is in a Hyper Help format and therefore requires an X display to view Usage is abaqus doc 7 2 4 abaqus convertenv This is the procedure for converting the environment file from a version 5 file to version 6 By default it converts an old abaqus env file and produces a new abaqus_v6 env file abaqus convertenv environment file where convertenv ABAQUS keyword to invoke the env convert function environment file alternate ABAQUS env file to convert 7 2 5 abaqus upgrade This is the procedure to upgrade an old ABAQUS input file to version 6 2 abaqus upgrade job new file input old file where upgrade ABAQUS keyword to invoke the env convert function job new file name of the new job after upgrading input old file name of the old file to be upgraded 7 3 PACSYS PAFEC 7 3 1 Processing output of PAFEC jobs puppies This is a utility developed by Engineering Analysis Software to extract data from a PAFEC BS SS EE or ET file after a PAFEC job run puppies stands for Pafec User Pre and Post program for t
110. ry restarts The default is scratch no sdball db_size estimate Default size in GINO blocks of the DBALL DBset This number may also be specified in words or bytes if followed by a unit modifier If sdball estimate is specified the DBset size will be determined by estimate see section 6 1 4 The FMS INIT statement overrides this keyword The default is machine dependent see Appendix C in the MSC Nastran Installation and Operations Guide 1 Valid unit modifiers are B W KB KW K MB MW M GB GW G 37 DSTO GD 0435 38 sdirectory pathname Directory for scratch files This is the default directory for user database files if scratch yes The default is taken from the TMPDIR environment variable if it is defined otherwise it is machine dependent see Appendix C in the MSC Nastran Installation and Operations Guide 1 When used for remote processing see node this pathname must be valid on the remote system If dmparallel gt 1 unique scratch directories may set for each task using the character to separate entries the names will be paired with the tasks in round robin order smaster db_size Default size in GINO blocks of the MASTER DBset This number may also be specified in words or bytes if followed by a unit modifier The FMS INIT statement overrides this keyword The default is machine dependent see Appendix C in the MSC Nastran Installation and Operations Guide 1 Valid unit modifi
111. senieatinatsdeiapsitatsueadscastans 68 77 2 Texteditor xemacs sip ioeie EEA AE E ET s Ea 69 TETAS MEEN o DE T mie neac saisbsteasvebiwens ats aaiaraesasseoncs 69 LLA NEV ea e E A EA sl Bs A Ne t 70 nET RS E E E E E AE EE E ENE TEA cosets A S E E AEA AEA 70 7 7 6 Image capture and manipulation XV ass ci is deen sah tes cedsmt eyed wero 70 7 7 7 Image manipulation IMIAGEVISW ver cscrvinsyccdinstencioans toreseahes cebsnabonnneay ecoapies 70 7 7 8 Image manipulation Cap EHINes cinta tose suenanraan sues muse pene 70 7 7 9 PostScript file viewing and printing ghostview c cscs 71 7 7 10 PostScript file editing ChOStsCip ts sssnnseceisisssstsvatvesvvnasettupencesnvieneeetionn 71 7 7 11 Web browser netscape ssesessssesesesesesceseresesesesesesesessesesesesesssseseseresestee 71 7 7 12 HP documentation viewer dynatext eseseesseiessessesieseresreseereresesses 71 7 7 13 MSC Nastran documentation viewer iVieW essees 72 8 EXAMPLE OPERATIONS esesessessosescesesessescoresessosceresessoseeeoseseesoseoresesroseeeesesreseseeseseeses 72 8 1 Copying files to from another user seseseesoreresesescososeseseseseseseseseosososesereseecesosese 72 8 2 Transferring data between Unix servers e essesesereesosereseseseseseseseososososeseseesesosese 73 8 3 Transferring data to a PC esseseseresesesesesesesroroseresereeeososeseseseseseseseosososososerereesesesese 73 8 4 Recommended generic modelling procedureS s
112. sic alias sh builtin create or display alias shortcut to a command bdf 1M report number of free disk blocks Berkeley version be fg sh builtin resume a suspended process in background or foreground cat 1 concatenate copy and print files cd 1 change working directory clear 1 clear terminal screen compress compress and expand data uncompress zcat 1 cp 1 copy files and directory subtrees df report number of free file system disk blocks generic 1M dtmail 1 the desktop mailer dtpad 1 edit text files dtterm 1 emulate a terminal window du 1 summarise disk usage echo 1 echo print arguments exit _exit 2 terminate process export sh builtin set a sh shell environment variable file 1 determine file type ftp 1 file transfer program gzip gunzip compress or expand files zcat 1 hostname 1 set or display name of current host system Ip Ipalt print alter cancel requests on an LP printer or plotter cancel 1 Ipstat 1 report line printer status information Is Ic 1 IL Isf list contents of directories Isr Isx 1 man 1 find manual information by keywords print out a manual entry mesg 1 permit or deny messages to terminal mkdir 1 make a directory more page 1 file perusal filter for crt viewing mv 1 move or rename files and directories newegrp 1 switch to anew group passwd 1
113. sumed gmconn pathname Geometric evaluator connection file There is no default value ishellext ty pe processor ty pe processor Define processor associations This list defines the processor used by MSC Nastran to execute an ISHELL program based on its file type This value may also be set with the MSC_ISHELLEXT environment variable The environment variable overrides the RC files the command line overrides the environment variable The default is operating system dependent ishellpath path Additional path for ISHELL module MSC Nastran will attempt to locate IGHELL module programs on this path before searching the standard PATH The path value may include environment variable references e g jidpath HOME mytpl HOME This value may also be set with the MSC_ISHELLPATH environment variable The environment variable overrides the RC files the command line overrides the environment variable The default is the directory containing the input data file jid pathname Input data file An input file must be defined on the command line There is no default value jidpath path Additional path for input data file searching MSC Nastran will attempt to locate the input data file on this path if the input data file name does not have a directory component and cannot be found in the current directory The path value may include environment variable references e g jidpath HOME mytpl HOME This value may also be set 33 DSTO GD 0
114. t except for the NIC which has had its Desktop environment deliberately disabled While the Unix environments on each server have many similarities and may look the same they are actually all different In particular the CDE environments on the various CSAF HP machines look almost identical to one another therefore the user must maintain an awareness of which server or workstation they have logged into and to which machine any particular terminal emulator window on their desktop is connected For example a user may log in to jayted through the X display manager XDM on an X terminal called heyted Once CDE has started the user opens two xterm windows Both of these windows have their DISPLAY environment variable set to heyted In the first window the user runs MSC Patran to prepare a data deck for analysis on poisson2 In the second window the user does a remote login to poisson2 Now in this window the user copies the data deck from jayted and then submits the job on poisson2 After the job completes the user tries to run MSC Patran to review the results The response is a command not found error because the current window is connected to poisson2 which does not have MSC Patran The user must copy the results to jayted then switch back to the first window before running MSC Patran 5 1 1 The Unix file system A lot of what you want to do when using Unix involves the manipulation of files In Unix groups of files are collected together i
115. t to note that as both jayted and poisson2 are running 64 bit operating systems a report generated using the default value of 32 is only of academic interest hence the user must specify the word 64 option to obtain useful results Usage is estimate input data file word 64 keyword options where Command line parameters input data file adapt sid bpool value buffsize value estimatedof yes no memory value method sid mode estimate modify suggest mpc sid nastrc yes no output output data file pause yes no info warn fatal real value realdelta value report normal keyword both scratch yes no mini spc sid suppress value value smem value verbose yes no version version wordsize 32 64 32 64 DSTO GD 0435 Default none none 37 estimate no estimate none suggest none yes input data file no none 12MB normal no none none 100 no 2001 0 32 6 1 5 Submitting MSC Nastran jobs to batch queue nastbat This is the CSAF custom command script developed for the NIC poisson2 to simplify the task of submitting an MSC Nastran analysis to the NIC batch queuing system The nastbat script will submit your job to the batch queues At present MSC Nastran versions 70 5 70 7 and 2001 are running on poisson2 This command invokes the system default version of MSC Nastran which is version 2001 Usage is nastbat job_name cpu_time mem where
116. tabase will no longer match the data deck For larger MSC Nastran analyses run the estimate utility to tune memory buffer size and other nastran command parameters for this analysis m If necessary copy the data deck and any bulk data include files to the remote host n o i e poisson2 Check and set with the mesg command that messages are allowed to be written to the terminal window in which you submit the job Submit the analysis with the nastran command or the nastbat command on poisson2 DSTO GD 0435 When the job is completed check the log f04 and f06 files for errors and warnings and in particular make sure that the job has completed Begin post processing the results with the naked eye or with tecplot or with patran or using any programs you have written or been supplied with for that purpose Clean up unnecessary files e g log f0 xdb or op2 files from the analysis either manually or using the fedel command and the patran session files from the patran session If required create a new load case or refine the FE mesh in your MSC Patran database or create a new database for the next iteration of the analysis Remember to update the info in your model index file if you have not already done so If you are satisfied with your results now write your report After the report has been done ensure that the essential data is archived w Clean up the directory 8 4 2 ABAQUS These are the generic
117. ted into a single results file job name sel prior to being converted into a standard ABAQUS results file If convert odb the output database job name odb will be converted using the postprocessing calculator see ABAQUS Standard User s Manual 24 Section 4 3 1 The postprocessing calculator and 26 This conversion is necessary only if the types of output listed in The postprocessing calculator Section 4 3 1 are requested If the analysis was run in parallel with parallel domain the separate output database files job name odb n will be converted into a single output database job name odb prior to conversion by the postprocessing calculator If convert state the separate ABAQUS Explicit state files job name abq n will be converted into a single ABAQUS Explicit state file job name abq if the analysis was run in parallel with parallel domain If convert all the selected results file and the output database file will be converted python This option indicates that Python scripting is to be done If this option is not given a value the Python interpreter is initialised When this option is set equal to a script file name the Python interpreter executes the instructions in the script file recover This option applies only to ABAQUS Explicit It indicates that an analysis is to be restarted at the last available step and increment in the state file This capability is available to restart a job after a catastrophic fail
118. tension is given the program will take the appropriate action based on the file type If the file name has no extension the program will search for a FORTRAN source file If the source file does not exist an object file will be searched for instead The execution procedure creates a shared library using the user subroutine file that is used by ABAQUS Standard or ABAQUS Explicit during execution oldjob This option specifies the name of the files from a previous run from which a restart or POST OUTPUT ABAQUS Standard only run is to be started or from which results are to be imported A file extension is not allowed This option is required when the RESTART POST OUTPUT SYMMETRIC MODEL GENERATION or IMPORT option in the input file indicates that data are to be read from the restart or the results file The oldjob name must be different from the current job name fil This option specifies whether the data from the results file of the oldjob specified in a restart run are included at the beginning of the new results file default If fil new is used the new results file will contain only the data from the point in the analysis where the restart occurred This feature is used for ABAQUS Standard runs to join the output from restarted analyses into a single continuous results file Non restart jobs cannot use this feature to append results file output to an old results file the ABAQUS Append utility must be used for this purpose Settin
119. ther references As well as the many on line Unix manuals mentioned in section 9 7 there are many UNIX How To and UNIX Quick Reference type publications available in print and on the web which cover all levels of users ranging from the most experienced to the freshest novice Many books on UNIX and FEA can be found in the DSTO Research Library And now a reminder to also see the AVD CSAF FE report catalogue which is available at http jayted CSAF reports catalogue html 85 DSTO GD 0435 86 10 References To make the following list of references more readable and also to save space the following abbreviations have been used for the respective company publications MSC Software HKS ABAQUS SER PACSYS NAFEMS TMP HP SGI GNU MSC Software Corporation 815 Colorado Boulevard Los Angeles CA 90041 1777 USA HIBBITT KARLSON amp SORENSEN INC 1080 Main Street Pawtucket RI 02860 4847 USA ABAQUS INC 1080 Main Street Pawtucket RI 02860 4847 USA Formerly HKS SER SYSTEMS LTD 39 Nottingham Road Stapleford Nottingham NG9 8AD United Kingdom PACSYS LTD Strelley Hall Nottingham NG8 6PE United Kingdom Formerly SER NAFEMS Ltd Whitworth Building Scottish Enterprise Technology Park East Kilbride Glasgow G75 0QD United Kingdom Third Millennium Productions 303 Main Street Fort Worth Texas 76102 USA Hewlett Packard Co 3000 Hanover St Palo Alto CA 94304 US
120. this book 9 4 PACSYS PAFEC 94 1 User s manuals a PAFEC Data Preparation Manual Parts 1 3 Level 8 35 Contains 9 sections covering 1 General description of data 2 Data modules 3 CONTROL module 4 Element types 5 System of units 6 Data validation and element geometry 7 Types of analysis 8 Standard material properties 9 Examples These are a must read for all PAFEC users PAFEC Interactive Graphics Reference Manual Parts 1 3 Level 8 36 Contains 10 sections in over 870 pages covering the various ways to use PIGS including examples PAFEC PIGS Option Selector Level 8 37 The absolutely essential quick reference card to have at hand when using PIGS DSTO GD 0435 9 4 2 Reference manuals a PAFEC Theory Manual 38 A brief history of PAFEC FE the notation used and an extensive section on the theory used in the development of PAFEC FE and a very long list references 9 5 Amtec Tecplot a Amtec Tecplot User s Manual Version 10 0 39 Detailed descriptions of Tecplot capabilities covered in 32 chapters 6 appendices and over 600 pages 9 6 NAFEMS references The National Association of Finite Element Method Standards NAFEMS UK publishes standards for the conduct of FEA The NAFEMS membership pack contains a set of guidelines and procedures to ensure the quality assurance of FE analysis They include standard benchmarks and examples of various analyses such as linear non linear dynamic ther
121. tions are nB nW nKB nKW nK nMB nMW nM nGB nGW nG n physical and n virtual Note If you refer to physical or virtual memory the physical or virtual memory must be known otherwise this limit will be ignored See also the s pmem and s vmem keywords nemd command_string Command to notify user that the job has completed The default notification will use the Korn shell print command if batch no or write 1 otherwise news yes no auto Display site s news and release notes in the F06 file The news auto keyword will only print the news file if it has changed since the last time it was printed The default is news yes DSTO GD 0435 notify yes no Notify user at job completion Use ncmd to set the notify command The default is notify yes If the application is running in an NQS NQE batch job the default is notify no old yes no Save existing output files If old yes the existing output files are renamed with a version number if old no the existing output file are deleted The default is old yes oldtypes file_types A comma separated list of user file types excluding the that will be versioned if old yes is specified or deleted if old no is specified These file types are in addition to the standard file types e g f04 f06 log etc This value may also be set with the MSC_OLDTYPES environment variable The environment variable overrides the RC files the command
122. tration of the CSAF It has no FEA software or Fortran compiler DSTO GD 0435 Table 2 Summary of workstation models and names Workstation make model Qty mcs R a Function Ref HP C240 1 farted eee CNS 4 13 FEA pre and post processing HP apollo 715 1 storm System administration 4 1 4 aardvark FEA pre and post processing Sane A outback1 Fatigue life calculation nee 4 1 5 X terminals The CSAF also maintains a number of X terminals see Table 3 Most are located in the CSAF Workstation Room in Bldg 3 while the rest are in users offices around the Fishermans Bend site Several of the X terminals in the CSAF Workstation Room are shown in Figure 5 Table 3 X terminal models and names Make model Qty Registered IP name s HP Envizex II 1 orac HP Envizex model P 2 heyted chunted HP Envizex model A 3 ricted bonnie cowted HP 700 RX 1 exted Tektronix x500 1 freya Labtam model C320 6 abrizon tacoma ifostpx2 fattam adour bugs 11 DSTO GD 0435 12 Figure 5 X terminals in the CSAF Workstation Room showing from left to right cowted HP Envizex A heyted HP Envizex P and abrizon Labtam CT320 4 1 6 PCs with X emulation software Many users now access the CSAF from their corporate desktop PCs via X emulation software such as X Win32 Excursion or Exceed The user is responsible for maintaining the X emulation software on their own PC the CSAF Team can only provide limited assistance to users with tr
123. two types of Unix commands In one type of command you ask the computer for information For example if you type Is the computer will respond by printing a list of your files on the screen In the other type of command you ask the computer to do something It does not necessarily need to print any response These types of commands usually are asking for something to be done to a file The basic form of these commands is command filename These tell the machine to perform the action dictated by command on the file that is called filename An example is rm model dat which deletes the file named model dat from the current directory This will permanently remove the file from the system Be warned the shared file systems under Unix mean that it is almost impossible to recover deleted files Many Unix commands have options These are preceded on the command line by a minus sign The basic form is command option filename or just command option Two examples are rm i model dat Is 1 5 4 1 Paths and patterns ways to refer to files The asterisk or wildcard is very useful in referring to files It matches any string of text For example dat refers to any files that end in dat All the files in the current directory can be referred to by Thus cp dat Models will copy all the files in the present working directory with the dat extension into the subdirectory called Models Beware doing a command like rm s dat
124. ument containing over 200 benchmark problems and standard analyses used to evaluate the performance of ABAQUS tests are multiple element tests of simple geometries or simplified versions of real problems Includes NAFEMS benchmark problems ABAQUS Verification Manual 31 Online only volume containing more than 5000 basic test cases providing verification of each program feature procedures output options MPCs etc against exact calculations and other published results It may be useful to run these problems when learning to use a new capability In addition the supplied input data files provide good starting points to check the behaviour of elements materials etc 9 3 4 Reference manuals a b ABAQUS Keywords Manual v6 2 32 Contains a complete description of all the input options that are available in ABAQUS Standard and ABAQUS Explicit ABAQUS Theory Manual 33 Online only volume contains detailed precise discussions of all theoretical aspects of ABAQUS It is written for readers with an engineering background ABAQUS Input Files 34 Online manual contains all the input files that are included with the ABAQUS release and referred to in the ABAQUS Example Problems Manual the ABAQUS Benchmarks Manual and the ABAQUS Verification Manual They are listed in the order in which they appear in the manuals under the title of the problem that refers to them The input file references in the manuals hyperlink directly to
125. ure such as exceeding a CPU time limit or a disk quota script This option indicates that a parametric study is to be done If this option is not given a value the Python interpreter is initialised by importing the parametric study module When this option is set equal to a script file name the parametric study module is imported and the instructions in the parametric study script file are executed If the script file contains references to other input files these files must be located in the same directory 51 DSTO GD 0435 52 as the script file The files created by the execution of the script file are placed in the directory from which the ABAQUS execution procedure is run suspend This option is used to suspend an ABAQUS analysis job and temporarily release its license tokens to the free token pool See the ABAQUS Site Guide 28 for details syntaxcheck This option indicates that the run is for checking the syntax of the input file only This option does not use any license tokens No analysis will be performed and the continue option cannot be used to continue with an analysis Only the data dat and output database odb files are generated for viewing information This option specifies that the run includes information extraction By default the information is written to the screen If a job name is given or if the job is run in the background the information text is written to the file job name log The follow
126. works by identifying an analysis package by matching the input deck name and extension i e job_name DAT then deleting ALL files matched by job_name except for the input deck e g job_name DAT and a database file i e job_name db if it exists It is important to note that additional files are removed with a PAFEC analysis 6 3 3 Usage is fedel job_name 6 2 ABAQUS Standard 6 2 1 Running an analysis with the abaqus command The versions of ABAQUS Standard and Explicit that are available on both jayted and poisson are 6 2 7 and 6 3 1 The default version is now 6 3 1 and it is available via the command abaqus The previous version is available via the command abq627 The abaqus DSTO GD 0435 command is the master command to invoke all of the ABAQUS options such as running a job or processing the results The following is a description of the ABAQUS analysis options for version 6 3 1 Note that some options may be different for version 6 2 7 Usage is abaqus job job name analysis datacheck parametercheck continue convert select odb all python script file recover script script file suspend syntaxcheck help information environment local memory release status system whereami input input file user source file object file oldjob oldjob name fil append new globalmodel results file name output database name cpus number of cpus parallel loop domain
127. y owner 0100 u x Execute search in directory by owner 0040 g r Read by group 0020 g w Write by group 0010 g x Execute search by group 0004 o r Read by others 0002 o w Write by others 0001 o x Execute search by others 5 4 11 Getting information whoami pwd finger env jobs ps history The command pwd prints the name of your current working directory on your screen Typing history will give a list of your most recent commands This information is stored in the file sh_history Typing whoami will tell you whose account you are currently using The command finger will get you information on all users currently logged onto your system You can also find out about a single person For example finger zmythe will give you information about the DSTO GD 0435 user zmythe finger will make a guess for you so you can use it to find out e mail addresses Thus finger smyth will probably give you information on zmythe whose name you had forgotten how to spell You can also use finger to inquire about people elsewhere on the internet using their e mail address as in finger teds dsto defence gov au However this feature is not enabled on the majority of DSTO machines and certainly won t work through the DSTO firewall A list of your environmental variables can be obtained via env The commands ps and jobs tell you the current processes and jobs that are owned by you To get all processes use ps ef or ps el
128. y the current permissions for a file with the Is 1 command see section 5 4 2 DSTO GD 0435 a Symbolic Mode List A symbolic_mode_list is a comma separated list of operations in the following form Whitespace is not permitted who op permission The variable fields can have the following values who v ogc Permission oe S E One or more of the following letters Modify permissions for user owner Modify permissions for group Modify permissions for others Modify permissions for all users a is equivalent to ugo Required component of mode list must be one of the following symbols Add permission to the existing file mode bits of who Delete permission from the existing file mode bits of who Replace the existing mode bits of who with permission One or more of the following letters Add or delete the read permission for who Add or delete the write permission for who Add or delete the execute file search directory permission for who Add or delete the set owner ID on file execution or set group ID on file execution permission for who Useful only if u or g is expressed or implied in who Add or delete the save text image on file execution sticky bit permission Useful only if u is expressed or implied in who See Unix man page chmod 2 Conditionally add or delete the execute search permission as follows If file is a directory add or delete the search permission to the existing file mod
129. yes If running in an NQS NQE batch job the default is batch no delete yes no all jid type Comma separated list of MSC Nastran output file types to delete at job completion delete yes is equivalent to delete 06 f04 log delete all deletes all standard output files delete jid is ignored if not in server mode The default is delete no delivery pathname MSCDEF Alternate delivery database prefix or MSCDEF This keyword overrides all MSC supplied solution sequences The file type of the file must be MASTERA If a directory is not specified and the file does not exist in the current directory the default delivery database directory is assumed The default is delivery MSCDEF diag flag flag Set MSC Nastran diagnostic flags The values may be separated with spaces or commas These diagnostics are set in addition to any diagnostics set via the Executive Control DIAG statement in the input data file display display_name DSTO GD 0435 UNIX systems only Specify a display for XMONAST This value may also be set with the DISPLAY environment variable The environment variable overrides the RC files the command line overrides the environment variable executable pathname Alternate solver executable This keyword overrides all architecture and processor selection logic If a directory is not specified and the file does not exist in the current directory the default executable directory is as

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