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COSMOSM Getting Started

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1. COSMOSM Getting Started 4 p 6 35 Chapter 6 Getting Started Specifying the Element Group Geo Panel Propsets gt Element Group Element group number 1 Egroup Category Volume for the Unix version only Element Name TETRA10 10 node tetrahedral solid element Click Continue Click OK to accept the defaults associated with the element group Specifying Material Properties Next define the material properties Geo Panel Propsets gt Pick Material Lib Material property set 1 Material Name A_STEEL ALLOY STEEL Unit Label FPS British Inch Pound Second Click OK Figure 6 25 Dialog Box for Applying Material to the Bracket J PICK_MAT Ed Material property set n Material Name JASTEEL ALLOY STEEL ej LI nit Label FPs British Inch Paund Secand There is no real constant associated with TETRA10 element List and Verify Your Inputs To verify the element group and the material properties you have just input you can proceed as follows Geo Panel Edit gt LIST gt Element Groups Beginning element group number 1 Ending element group number 1 Increment 1 Click OK to accept the entries for element group listing Similarly you can list the material properties 6 36 COSMOSM Getting Started 4 b Chapter6 Getting Started Meshing the Model We will mesh the model with the default element size To see the default element size I Geo Panel Edit gt LIST gt Polyhe
2. Lin DEF Lc 51 Yon Mises 1 91E 003 1 45E 003 1 07E 003 ESm mmmmg 220 00008 Lin DISP Lc 51 Lin DEF Lcz51 ARAM Exercises There are many ways to create the model shown in previous sections in GEOSTAR It is recommended that the user try alternative ways to create the same model New problems can be created by exiting GEOSTAR and then re entering it using a different problem name or by using the NEWPROB File gt New command while in GEOSTAR First Exercise e Create a new problem e After setting the view and the grid use the CRPCORD Geometry gt CURVES gt Draw Polyline command to draw the outer boundaries of the plate e Create the center keypoint and use the CRPCIRCLE Geometry gt CURVES gt CIRCLES gt Circle in Plane command to draw the circular opening e Use the SF2CR Geometry gt SURFACES gt Define by 2 Cr command to create four surfaces Each surface is created from a straight edge and an arc e Use the M SF Meshing gt PARAMETRIC MESH gt Surfaces or the MA SF Meshing gt AUTO MESH gt Surfaces to mesh the four surfaces at once COSMOSM Getting Started 4 p 6 31 Chapter 6 Getting Started amp m 5 m Second Exercise Create a new problem Create a keypoint by specifying the coordinates of a corner Use the CREXTR Geometry gt CURVES gt GENERATION MENU gt Extrusion command to generate one outer straight edge by extruding the
3. file will be overwritten Then run the frequency analysis IV Geo Panel Analysis gt OUTPUT OPTIONS gt Set Print Options Turn on the append to the output flag Click OK to accept the rest of the defaults V Geo Panel Analysis gt FREQUENCY BUCKLING gt Run Frequency As before GEOSTAR will display status messages related to normal modes of calculation as it runs the analysis module At this point the two analyses are 6 24 COSMOSM Getting Started 4 b Chapter 6 Getting Started amp m 5 m completed and you are ready to evaluate the results directly from GEOSTAR for both of them Results In the postprocessing phase several options are available 1 You may examine the results written in the problem output file This can be done using your preferred editor from the operating system level or you can go to File gt Edit a File and open the problem output Plate out file 2 You may list the model displacements and stresses using the commands provided in Geo Panel Results gt LIST You can also list extreme values of a displacement or a stress component Geo Panel Results gt Extremes 3 Finally graphic postprocessing may be performed to examine deformations displacements stresses and mode shapes You are now ready to start looking at the results for both linear static and frequency analyses Frequency analysis is the active type for postprocessing since it was performed last Create four w
4. file to make sure that all related daemons are started Cosmos License Administrator x Status System Settings Authorized Modules Server Settings Combine Licenses COSMOS license file C Cosmosm license dal Browse BANI license file C ACosmosm BRNINbmi ic Browse Eombime selected files Cancel Apply Help Current Usage tab The Current Usage tab allows a License Administrator on a server to list all the current users of the floating license of various COSMOS applications This tab appears on the License Server machine after the COSMOS License Server Service is installed This tab is not activated for end users Users of dongles demo and node locked license are not listed COSMOSM Getting Started 4 p 5 13 Chapter 5 COSMOS License Administrator Choose the desired product and click the List Users button The table lists the product user name host and the last checkout date and time COSMOS License Administrator Status System Settings Authorized Modules Server Settings Combine Licenses Current Usage Product Usage License Client Last Checkout License Server Cosmos Works Parts and Asser Happy User 1 srac0364 01 04 02 15 12 34 srac0369 DesignStar Parts and Assemblie Happy User 2 srac0364 01 04 02 16 13 56 rac0369 Geostar Happy User 3 srac 353 OF Cancel Apply Help pure 5 14 COSMOSM Getting Started 4 amp m 5 m G
5. Unused option 0 Pressure direction 4 Normal Click OK COSMOSM Getting Started 4 p 6 39 Chapter 6 Getting Started Figure 6 30 Applying Pressure Load Beginning Region Boo Pressure magnitude nn Ending Region INNEN Increment ooo Unused option o Pressure direction tNomd e Cancel The following figure shows the applied boundary condition and loads on the finite element mesh of the bracket Figure 6 31 The Complete Finite Element Model of the Bracket Part mL T ei ul VANNES NORUNT XE ERRETENA A AE ae efor Performing the Analysis We will consider linear static analysis for this model To view or modify the static analysis options issue the command A_STATIC Analysis gt Static gt Static Analysis Options In this example all default values will be used thus there is no need to issue this command To perform the static analysis l Geo Panel Analysis gt Static gt Run Static Analysis GEOSTAR will display status messages as it runs the analysis module When the analysis is completed the program will return to the Display Window and wait for your next instruction 6 40 COSMOSM Getting Started 4 p Chapter 6 Getting Started Postprocessing of the Static Analysis Results In the postprocessing phase several options are available e You can examine the results written in the problem output file This can be done using your preferred editor from
6. Click OK to accept all the defaults pure 6 44 COSMOSM Getting Started lt amp m 5 m A ACTSET 6 8 Adaptive Method 6 10 administration privileges 3 1 administrator privileges 3 2 alternate license servers 5 11 Analysis menu 6 4 autorun 3 5 autorun exe 3 5 B boundary condition 6 20 C CAD INP 6 34 Change El Prop 6 8 Client 3 4 5 3 client 3 4 5 2 client machine 3 3 Combine Load Case 6 30 console window 6 2 Control menu 6 4 COSMOS License Administrator 3 1 3 3 3 4 3 5 5 2 COSMOS M program Index group 6 2 D degrees of freedom 6 11 Demo License 5 2 directory 3 6 Display menu 6 4 display window 6 2 documentation 3 1 Dongle 5 4 dongle 3 3 5 1 5 6 5 7 dongle ID 5 7 DXF 6 3 E Edit menu 6 4 error messages 3 1 escape key 6 5 Ethernet card 5 7 F FEA 3 6 File menu 6 4 FLEXIm 5 2 5 3 floating 5 8 COSMOSM Getting Started G Geo Panel 6 4 6 24 Geo panel 6 2 geometric file format 6 6 Geometry menu 6 4 GEOSTAR screen 6 2 grid 6 14 H hardware security 5 1 H method 6 10 host ID 5 7 I icon 6 2 6 5 IGES 6 3 interactive mode 6 3 Internet 3 3 3 4 3 5 3 6 K keypoint 6 31 L Large files 3 6 license 3 1 3 3 3 5 3 6 5 1 5 2 5 4 5 5 5 6 5 7 4 Index license file 3 3 5 1 5 8 5 11 License Server 5 10 5 12 5 13 license dat 3 3 3 4 5 1 5 3 5 10 Imgrd exe 5 10 loading 6 20 LoadsBC menu 6 4 l
7. Error updating the registry The dynamic setup procedure installs the program and configures the license The dialog boxes are self explanatory and provide plenty of information A separate program called COSMOS License Administrator is provided for convenience to let you quickly administrate your license and monitor its usage COSMOSM Getting Started 4 p 3 1 Chapter 3 Installing COSMOSM Before installing COSMOSM please note that 1 You must have administrator privileges to run the setup procedure properly If you are installing COSMOSM from COSMOSWorks or COSMOS Products CD make sure to select COSMOSM in the window that lists the products to install Make sure that your system satisfies the minimum requirements System Requirements 1 Pentium or AMD based computers with Windows NT 4 0 or higher Windows 2000 98 95 ME or XP operating systems Minimum of 64 MB of RAM 256 MB or higher is recommended A SWAP space of at least 160 MB should also be specified 282 MB of free disk space is needed to install the program and documentation About 1 GB or more additional disk space is recommended for running the program CD ROM drive Video display and adapter Parallel port required for Hardware Security key Network card required for FLEXIm network security option and TCP IP and SPX IPX network software components Mouse or other pointing device Plotters and Printers are optional 3 2 C
8. Geo Pane iz x J Geostar Z T 64K Version eee Main j Geomety Pis C File Edt Geometry Meshing PropSets LowdsBC Control Display Analysis Resuks Windows Hel Meshing E amp Modes of Operation GEOSTAR can be operated in the following modes 1 Interactive mode using pull down menus push buttons mouse and the keyboard to interactively issue commands and respond to dialog boxes 2 Semi batch mode where the user while in GEOSTAR issues a command to read files with valid GEOSTAR commands Valid files include files from other applications such as CAD programs IGES and DXF formats in addition to GEOSTAR files created in a GEOSTAR session or externally by an editor The user can start in the interactive mode read a file and give commands interactively COSMOSM Getting Started 4 P 6 3 Chapter 6 Getting Started Figure 6 2 Icons Geometry File Meshing Edit PropSets Control LoadsBC Display Analysis Analysis Results Hesults Active Yin Main New eme Tamam View o Save Hestore B Demo Contig oom Translate Z RIE Rotate m gu Ci J sil E Set Post Status 1 Status Status 3 HM Window selection list Push Buttons Push buttons help users quickly select commonly used functions The available icons are shown in Figure 6 2 A push button can be activated by placing the mouse point
9. Specifying Loads and Boundary Conditions 6 20 Model Evaluation 00 0 cc ccc cee s 6 23 AMAIYSIS a sedo madea qam dot bd ood head pbb ioe doa md pat aie deb diede 6 23 DI UU M rrrm 6 25 Secondary Load Cases 0 0 0 ccc eee eee eens 6 30 PXCICISGS bero ne 9 bourse PER Saa 2 999 QU IET ke ee sees caaeee 6 31 First Exercise 2o ipei bietet ada hens aaa eae den d bre S 6 31 Second Exercise X 2a d ure as 405 5 bo 9654084650048 d dra wis he ee 6 32 Third EXxerel96 o is a qe te der ze Rat 99 beue deb dapbewsm Sues 6 32 Fourth Exe lesse 2RT93OsTEIPGSUEPEUETQSPPSAOSP SSPPOSSQEESN 6 33 Fifth B XerIeISQ 665 4c4 0 4 62k E Rr dua su e so den er odd reb decas 6 33 Working with CAD Systems 0 0 0 0 cc eee eee 6 33 Description of the Problem 0 0 0 0 6 34 Starline GEOSTAR zx cwoandcderdeg64 sees bHehes boven ER SA oes 6 34 Importing the Model into GEOSTAR 0 0 0 cece eee 6 34 Specitymp Properties 2 0 4420 os bre E 444 508 Soe os eee whee Ga ERES ES 6 35 Meshing the Model 000 cc ccc cece eee eens 6 37 Applying Loads and Boundary Conditions 0055 6 38 Performing the Analysis 0 0 0 0 ccc eee teens 6 40 Postprocessing of the Static Analysis Results 05 6 41 Index 1 COSMOSM Getting Started 4 Introduction The topics discussed in this guide are e How to Learn COSMOSM This section provides new users with b
10. of COSMOSM The Database Utility and all translators are included with this release and can be used with the full fledged and the Explorer versions A detailed list of the enhancements introduced in the various modules of COSMOSM 2 9 is presented in the What s New in COSMOSM 2 9 chapter GEOSTAR Manager Utility The GEOSTAR Manager is a utility program meant to ease the use of different versions of GEOSTAR In particular the GEOSTAR Manager lets you choose which version of GEOSTAR to run It also lets you choose a default start in directory and informs you of the limitations of each version To access the GEOSTAR Manager utility click Start Programs COSMOS 2005 Applications GEOSTAR Manager COSMOSM Getting Started 4 1 3 Chapter 1 Introduction Bus COSMOSM Getting Started lt amp A 5 m How to Learn COSMOSM Introduction COSMOSM consists of the pre and post processor GEOSTAR and many analysis modules in addition to material libraries import export translators and other tools You can install COSMOSM from the COSMOS Products CD COSMOS Works CD COSMOSWorks and COSMOSDesignSTAR are two other products offered by Structural Research amp Analysis Corp The installation of these products offers an option to install COSMOSM Refer to www cosmosm com for more information on products of Structural Research and Analysis Corporation How to Learn GEOSTAR The online help of GEOSTAR p
11. program group or by clicking Start Programs COSMOS Applications GEOSTAR When you type the problem name in the Open Problem Files dialog box and press OK all files related to this problem will have this name and some extensions determined by the type of information they contain It takes GEOSTAR few seconds to set up the database files The GEOSTAR opening screen as shown in Figure 6 1 has three important areas 1 Geo Panel Menu names describing the general functions of the commands in the menu are located in the left hand side of the screen see Figure 6 2 A command is issued by selecting the appropriate menu submenus and completing the associated dialog boxes 2 Console Window Command prompts and status messages appear in this area located at the bottom of the screen Commands and input using the mouse or the keyboard are also shown in this area 3 Display Window Located in the center of the screen this area is used to build and display the model Several windows can be created in this area On Line Help and List GEOSTAR features two different types of on line help 1 brief one line help messages at the bottom of the Display Window and 2 a detailed help facility in a text mode for all commands is accessed by typing help followed by the command name or clicking on the help button in a dialog box 6 2 COSMOSM Getting Started 4 Chapter 6 Getting Started Figure 6 1 The GEOSTAR Screen J
12. refer to the COSMOSFFE Modules manual To learn about the electromagnetic high frequency solvers refer to the COSMOSHFS manuals There are 3 manual for COSMOSHFS namely COSMOSHFS 2D COSMOSHFS 3D and COSMOSCAVITY Accessing the Electronic Manuals Complete COSMOSM 2 85 electronic documentation is available as PDF files on the CD PDF Portable Document Format files are easily viewed searched and printed The Adobe Acrobat Reader version 4 0 or later is required to view these files You can download the most recent reader from www adobe com Adobe provides the Acrobat Reader free of charge The installation program automatically creates an icon called Online Manuals in the COSMOSM Program Group If you have not installed the documentation the manuals will be accessed from the CD To install the electronic manuals on your hard disk 1 Activate the check box for installing the COSMOSM 2 85 documentation during the installation process 2 Follow on screen instructions The program will copy the documents to the specified location on your hard disk and will change the properties of the On line Manuals icon to point to the new location COSMOSM Getting Started 4 2 3 Chapter 2 How to Learn COSMOSM To start the electronic documentation 1 Click Start Programs COSMOS Applications COSMOSM Documentation or double click the CMManuals pdf file in the DOCS directory of the COSMOSM installation A window offe
13. study the available commands Deformed shapes can be directly plotted and animated for structural problems using the Deformed Shape and Animate commands Results gt PLOT gt Contour plots for all types of analyses can be generated by activating the desired quantity and plotting it The Analysis Type button can change the active type of analysis for postprocessing Results can also be listed on the screen using commands available in the Results gt LIST and Results gt EXTREMES menus COSMOSM Getting Started 4 6 9 Chapter 6 Getting Started 17 Evaluate the validity of the results by common engineering sense and any experimental or theoretical data If the actual results are too far from the expected results review your modeling assumptions element types meshing and other input such as dimensions units and material properties Correct any input errors and repeat the analysis If there is little or no improvement accomplished redefine the mesh use finer elements and repeat the analysis 18 Repeating the analysis with a finer mesh builds confidence in the results and will approach the exact solution in most cases If you are solving a linear static structural problem you might use the H or the P method where the decision of mesh improvement at automatically selected portions of the model relies on an error estimate Read the on line help on the ADAPTIVE Analysis gt STATIC gt Adaptive Method command COSM
14. that it can also be used to regenerate a model The difference is that it is not chronological and the geometric entities are written in a neutral format The user is encouraged to generate and keep this file In addition to serving as an additional security measure this file can save a lot of computer time in regenerating lengthy models in which extensive editing deleting undeleting modifying and recreating entities was used The session file goes through all intermediate steps in generating the model while the GFM file does not The utility helps the user combine several parts of a model by using the FILE command to read the desired parts stored in GFM files with proper offsets 3 ufn OUT analysis output file 6 6 COSMOSM Getting Started 4 gt Chapter 6 Getting Started This file is an ASCII file generated during analysis It contains details of the performed analysis input results and messages The user is advised to inspect the contents of this file in case of problems In many situations a message describing the cause of the problem will be written in the file The amount of information written to this file is controlled by commands in the Analysis gt Output Options submenu For thermal analysis the name of the output file is ufn TEM Other files GEOSTAR creates a number of other database files which contain the modeling information These files are transparent to the user and can be divided into two categori
15. the analysis and visualizing the results Starting GEOSTAR Double click on the GEOSTAR icon to start GEOSTAR Use the File Save Database As to name the new problem as Bracket_Model Enter a name for the problem Bracket_Model Importing the Model into GEOSTAR To import the bracket model into GEOSTAR Geo Panel Control gt CAD System gt Read CAD Input CAD system Pro E 18 PT M 2 6 34 COSMOSM Getting Started 4 b Chapter 6 Getting Started amp m 5 m CAD model IGES file name Click Find button and navigate to the Brack et igs file located in the exampleproblems folder where refers to cosmosm installation directory Click OK In order to ease the process of applying loads and boundary conditions later on it is recommended to reorient the model by performing a successive rotations about the global coordinate axes using rotation buttons We will perform rotations about the X axis first followed by rotations about the Z axis as follows Il Geo Panel Click the X axis button Click the rotation button IC five or six times Click the Z axis button Click the rotation button C five or six times The Bracket model will be oriented as shown in the figure below Figure 6 24 Orienting the Bracket Model Specifying Properties It is a good practice to define elements groups materials and real constant sets in the beginning All related commands are found in the PropSets menu
16. 000 node element version but the Explorer license limits the number of nodes elements to 5 000 COSMOSM Evaluation Version The Evaluation version is limited to 50 nodes elements This version is provided free of charge for evaluation purposes only It is not intended for any other use No security string is required for this version Electronic Documentation The complete set of electronic manuals for COSMOSM 2 95 release are included on the CD in PDF Portable Document File format The Adobe Acrobat Reader version 4 0 or later 1s required You can download the latest version from www adobe com Adobe provides the Acrobat Reader free of charge Verification Problems COSMOSM results are verified against many problems with analytical solutions The description of each verification problem is provided in the manual associated with the analysis type The input files for all verification problems are placed in a sub directory called vprobs in the COSMOSM installation directory A sub directory is allocated for each analysis module 5 L 5 M COSMOSM Getting Started 4 p Chapter 1 Introduction Database Utility and Translators The Database Utility is a library of sub programs written in the C language that enables you to read from and write to COSMOSM 2 9 database files You do not need the database utility for regular use of COSMOSM You only need it to create a communication channel between your own programs and the database
17. 1 appears next by default in the dialog box COSMOSM Getting Started 4 P 4 1 Chapter 4 What s New in COSMOSM 2 95 pax 4 2 COSMOSM Getting Started lt amp m 5 m COSMOS License Administrator Types of COSMOS Licenses All licenses require a license dat file Structural Research and Analysis Corp provides the following types of licenses for its COSMOS products Floating License License authorized for use on a network Any computer on the network can be set to use the floating license At any time the number of computers running a product may not exceed the authorized number of licenses Only a license file is needed Node locked License License authorized for a specific computer Only a license file is needed Hardware based License License authorized for one stand alone computer at any time A hardware security lock dongle and an associated license file are needed COSMOSM Getting Started 4 5 1 Chapter 5 COSMOS License Administrator Demo License License authorized for a certain period of time Features of the COSMOS License Administrator In the process of administrating your COSMOS License the COSMOS License Administrator helps you Find out the host ID and name of your machine Find out your hardware lock number Request a license from SRAC web site Install and start hardware lock drivers You don t need to launch separate license configuration prog
18. ANSFER gt Run Thermal Analysis command to run a heat conduction analysis Use the ACTTEMP and TEMPPLOT Results gt PLOT gt Thermal commands to load and plot temperature contours Use the A_STATIC T Analysis gt STATIC gt Static Analysis Options command to specify thermal loading Issue the R_STATIC Analysis gt STATIC gt Run Static Analysis command to perform linear static analysis based on the temperature profile obtained from the thermal analysis Working with CAD Systems In this section you will learn how to analyze models created in other CAD programs You will find how easy it is to work with models generated in CAD programs in GEOSTAR environment through the incorporation of a very powerful IGES translator A list of the CAD systems that you can work with inside COSMOSM Getting Started 4 p 6 33 amp m 5 m GEOSTAR is available by issuing the command CAD INP Control gt CAD System gt Read CAD Input Description of the Problem We will analyze a bracket model The model is subjected to the loads and boundary conditions shown in figure Figure 6 23 Bracket Model with Loads and Boundary Conditions Normal pressure of 500 psi The bracket is modeled with TETRA10 solid elements These elements have 3 translational degrees of freedom per node As we did in the first example we will start by defining element groups and material properties applying loads and boundary conditions then running
19. COSMOS licenses are based on FLEXIm technology If both license schemes failed click the Configure License button to select a license file on your computer or set the port and host name of a license server Cosmos License Administrator x Status System Settings Authorized Modules Server Settings Combine Licenses Information Type License Information LE Authorization Failed License File Used C Cosmoemlicense FLEIM LICENSE DAT cer aM License Type Floating Flexlm error 18 Dongle Information Sentinel Driver Detected Driver Version 5 33 0 Senitriel Driver Running Sentinel Dongle Detected CPlus Dongle Id e17b5f8a00 1 Maintenance Information Maintenance Number Maintenance Expiration Date Customer Name Refresh Configure License Cancel Apply Help Information Type License Information e Authorization The Status column tells you whether the authorization check has Passed or Failed The Remarks column tells you the reason of the authorization failure e License File Used The Remarks column lists the license file used Use the Authorized Modules tab to select a different license file s e License Type The Status column lists the type of the detected license A license file is needed in all cases Refer to Types of COSMOS Licenses 5 4 COSMOSM Getting Started 4 p Chapter 5 COSMOS License Administrator amp m 5 m Dongle Information e Senti
20. Contents 1 Introduction aus acu areck da ow o9 dA CONO RCR EY SHEE I 1 COSMOSM Distribution Material 0 0 0 0 0 eese 1 1 COSMOSM full version and all analysis modules 1 2 COSMOSM 2 95 Explorer 1 2 COSMOSM Evaluation Version 00 00 cee eee eee eee 1 2 Electronic Documentation llllssssellee e 1 2 Verification Problems illlllleeeellll es 1 2 Database Utility and Translators onnan anaana aaeeea ees 1 3 GEOSTAR Manager Utility 0 00 0 1 3 2 How to Learn COSMOSM eee nnn 2 1 Intro LION acd amp dunes EFE bases bees bans eee EO 2 1 How to Learn GEOSTAR 0 0 0 eens 2 1 How to Learn About Stress Frequency and Buckling Analyses 2 2 How to Learn About Other Types of Analysis 00055 2 2 Accessing the Electronic Manuals 00 0 cece eee eee eee 2 3 3 Installing C O5 MOS M uses 26644644 CREER RR SAS 3 1 E InttOGUC DOE seisd oy 64 4 arecsckedaedc eee eir doe ra dr dc a add 3 1 System Requirements 0 eee eens 3 2 L Outline of Installation Options 0 0 0 0 0 0 cc seen 3 3 Stand alone Installation 0 0 0 0 00 ce eee nee 3 3 License Configuration 0 000 0 eee 3 3 Network Installation 0 0 0 0 ee eee eens 3 4 L5 Starting the Installation 0 0 0 0 0 00 ccc cee e 3 5 COSMOSM Getting Started 4 Contents Installabon TIPS sse o 25h bone Y pat ay th eg acabe gi Ced
21. LWIN Control gt SELECT gt By Windowing command to select the curves of the circle use the FCR LoadsBC gt STRUCTURAL gt FORCE gt Define Curves command to apply forces on all curves GEOSTAR will apply forces only on elements associated with curves in the selection list Use the INITSEL Control gt SELECT gt Initialize command to initialize the curves selection list 6 32 COSMOSM Getting Started 4 b Chapter 6 Getting Started amp m 5 m Fourth Exercise Gravity centrifugal and thermal loading are referred to as special loading in GEOSTAR The user is encouraged to include gravity loading for the given example the steps are as follows Issuing the A STATIC Analysis gt STATIC gt Static Analysis Options command read the help and specify G for the special loading flag Specify a value for the acceleration of gravity in the X or Y directions using the ACEL LoadsBC gt STRUCTURAL gt GRAVITY gt Define Acceleration command Special loading is added to other forces and pressure for the active load case Concentrated masses or a value for density must be specified Fifth Exercise Define thermal conductivity KX using the MPROP Propsets gt Material Property command Use the NTCR LoadsBC gt THERMAL gt TEMPERATURE gt Define Curves command to apply a temperature of 200 around the hole Specify the temperature on the edges to be 25 Issue the R THERMAL Analysis gt HEAT TR
22. Lied aae rcr RR a yas bes n b S46 8 ON Soe SESS RERA 5 13 6 Gelling SIDFIOI s 6224 hrec RC EERE REESE ERS 6 1 WAPOOME ION HH 6 1 GEOSTLAR SCIO cu wooo oe qr a Rr ea ORE eO Ron e od ger bos E 6 2 Modes of Operatlonz seda edipeni RECES RACE EGREGIE RE ER 6 3 Push BUON s 322995279999 792 99929092 92 T9 922928522 95959 2 2954 6 4 hop e v w 6 4 COSMOSM Getting Started 4 p COSMOSM Getting Started amp m 5 m Input C DIONS acoso d or voe E x pare he eg dr dr 4 ox d a aq a tees 6 5 Important GEOSTAR Files llllleeeeeeeeeee ees 6 6 Steps of the FEA Process in COSMOSM ssslele ees 6 7 COSMOSM in Action lsssslsslelle rrr 6 10 Description of the Problem 0 0 0 ccc eee 6 11 Entering GEOSTAR 0 0 eee eens 6 11 Specifying Properties 0 eee eres 6 12 List and Verify Your Inputs 0 0 0 0 0 cee eee 6 14 Setting the VIEW issues sue or ERRARE REPRE XAR es 6 14 Setting the Grids iode cs bd eem nhe er peor RR RC hor pi opted 6 14 Creation of Quarter ofthe Model llle 6 15 Point General loft 122a tate oT E pas bende ebade C P IE 6 16 Curve Generalo eaa deus irder DE abe EROR PTS TI NC EEG PE 6 16 Surface Generation 0 0 re 6 17 Mesh Generation a aad one hones ERI ERR EI EERNISSE ded 6 17 Generation of the Rest ofthe Model 0 000 6 18 Node Merge and Compress 0 00 cece eee eens 6 19
23. MOS License Server button lets you point to the required files and host names of license servers Other buttons let you start stop re read and remove the license file and display the log and license files Configuring Redundant License Servers COSMOS License Scheme allows you to configure alternate license servers Configure COSMOS License Server service E x Fath to Lmgrd exe C CosmosmMledmmgdese 0 Browse Path to license file CACosmosmMlicense dat 000 Browse Path to lag file Cesmosmicemeka 00000 Browse Path to options file C Cosmosm4SRAC opt Browse Hostname of License Server Hastname Hast ID Hostname Hast ID Hostname Hast ID Cancel Cancel The license file sent by SRAC for a 3 host license server configuration looks like SERVER host1 005004ad342d 7585 SERVER host2 005004ad342e 7585 SERVER host3 005004ad342f 7585 VENDOR SRAC FEATURE DS PARTS SRAC 2 000 1 JAN 2002 4 6E812F40ED34 FEATURE DS ASSEMBLIES SRAC 2 000 1 JAN 2002 4 E08336FC8FBE COSMOSM Getting Started 4 p 5 11 Chapter 5 COSMOS License Administrator where host1 host2 and host3 are the hostnames of the License Server machines at the end user site To configure the 3 servers the end user has to run the COSMOS License Administrator on each of the 3 machines To configure the license server on a machine 1 Click Start Programs COSMOS Applications COSMOS License Administrato
24. NDARY Command Yon Mle 60538 00 22974 00 45410 00 37547 00 30283 00 227135 13156 00 7592 0440 285 29200 6 42 COSMOSM Getting Started 4 b Chapter 6 Getting Started D 4 20 To generate a section plot for the von Mises stress in the same window Geo Panel Results gt Plot gt Stress Load case number 1 Component VON von Mises Stress Stress flag 1 Node Layer number 1 Face flag 0 Top Coordinate System 0 Click Section Plot Orientation of section planes 1 Y Click Continue Number of section planes 1 12 12 Click Continue and OK to accepts the rest of the defaults Figure 6 34 Section Plot of the Von Mises Stress Yon Mle 60538 00 22974 00 45410 00 37947 00 30283 00 227135 13156 00 7592 0440 28 2392 Visualizing Displacement Results To generate contour plot for the resultant displacement Geo Panel Results gt Plot gt Displacement Response Reaction Load case number 1 Component URES Resultant Displacement Coordinate system 0 Click Continue Click OK to accept the rest of the defaults COSMOSM Getting Started 4 b 6 43 Chapter 6 Getting Started Figure 6 35 Resultant Displacement Contour Plot Diep Res 109640 9 935322 g m22228 9 532523 a 434819 e 041114 ea 027405 ea 013705 um QE 033 To animate the displacement plot l Geo Panel Results gt Plot gt Animate
25. OSM in Action A comprehensive step by step example is given in this section to provide the user with the necessary information for a confident and fast start By the end of this example you will be familiar with the basic features of GEOSTAR for preprocessing analysis and postprocessing 6 10 COSMOSM Getting Started 4 Chapter 6 Getting Started amp m 5 m Description of the Problem A square steel plate shown in Figure 6 3 is subjected to in plane forces of magnitude 1 000 units around the edge of a circular hole in the X and Y directions The forces in the X and Y directions are treated as multiple load cases to study their combined effect in the postprocessing phase The square plate has a side length of 100 units and the thickness is 0 2 units The radius of the circular opening at the center is 10 units The plate is modeled with 2D plane stress elements These elements have two degrees of freedom per node X and Y translations and must be in the X Y plane unless the CSREF2D command is issued to specify some other plane Figure 6 3 Square Plate with a Hole The material of the plate has an elastic modulus of 30 x 10 and the Poisson s ratio is 0 3 The plate is fixed at the top and bottom edges It is suggested at this point that the user reads about the units in Appendix B In this example the unit of length is inches unit of weight is pound and that of time is second The modulus of elast
26. OSMOSM Getting Started 4 Chapter 3 Installing COSMOSM amp m 5 m Outline of Installation Options To install COSMOS products properly you must determine whether your computer will work as a stand alone or as part of a network If you will be using COSMOS Wotrks on a client machine of a network system program files can be installed on your local computer or they can be installed on the server The following outline summarizes the setup options available when installing COSMOSM After installing program files the installation procedure guides you step by step to configure your license Here is an overview of the installation procedures The COSMOS License Administrator lets you check and administer all aspects of COSMOS Application licenses Refer to the COSMOS License Administrator chapter for details Stand alone Installation Program Files Install the program from the CD If the setup does not start automatically double click the setup exe file on the root folder of the CD License Configuration You should have received a security device dongle or USB key and a license file or just a license file In both cases the license file name is icense dat You must install the security device before configuring your license You can use the COSMOS License Administrator to check or reconfigure your license based on the license file You will need to install the security device and point to the license
27. Set Entity can be used to change the active sets 7 Evaluate various options of meshing Select and issue the appropriate command to generate the mesh for the corresponding part of the model In large models use a finer mesh only at critical locations in order to more efficiently develop and analyze your model 8 Repeat steps 6 and 7 as needed Change one or more of the active sets and mesh the corresponding part Verify the compatibility of the mesh 9 List the elements by Edit gt LIST gt Elements Verify that elements have the proper attributes The Change El Prop command in Propsets menu can be used to change the attributes of existing elements The Analysis gt Data Check command verifies that all needed attributes for an element have been defined The Analysis gt Run Check command does more elaborate checking including element connectivity The user is advised to read the help on these commands 6 8 COSMOSM Getting Started 4 b Chapter 6 Getting Started 10 Read the help and then issue the command Meshing gt NODES gt Merge You might need to specify a tolerance value that is different from the default If nodes belonging to adjacent parts with a common boundary are not merged then these nodes are not attached unless coupled and could separate during analysis Please read the on line help for this command 11 Use the LoadsBC menu to specify the proper loading and boundary conditions Remember that the
28. TURAL gt FORCE gt Plot Note that only forces associated with the active load case load case 2 are plotted To plot forces associated with load case 1 you need to activate it using the ACTIVATE command Il Geo Panel Control gt ACTIVATE gt Set Entity Set label Load Case Click on Continue Load case number 1 Click OK to accept Then you can list the forces associated with load case number 1 Now you have a complete finite element model of a plate structure with a hole along with applied boundary conditions and forces in two load cases The Zoom In button in the Zoom Pan Rotate area of the Geo Panel can give you a close look of the different areas of the model You can also check your model by the following commands IV Geo Panel Analysis gt Data Check V Geo Panel Analysis gt Run Check Please read the on line help for these commands Analysis We will consider linear static and frequency analyses for this model First the linear static analysis will be performed You may access the A STATIC Analysis gt STATIC gt Static Analysis Options to specify the details of the analysis and turn COSMOSM Getting Started 4 P 6 23 Chapter 6 Getting Started amp m 5 m on the necessary flags In this example all default values will be used thus there is no need to issue this command However if you issue the command you can click to accept the default values Then perform the analysis Geo P
29. a Sete UI OVV VIE Uh mum AAAA SENA rt ed DS Er pears X ELI rud ate A ESSI hoe FLE T c aF di d nt at s i Applying Loads and Boundary Conditions We will fix the inside regions of the holes on the two side walls of the bracket You can either type in the region number in the DRG dialog box or you can select it COSMOSM Getting Started 4 p Chapter 6 Getting Started from the display area by the mouse If you choose the latter option you will need to plot the regions of the model To do so clear the screen by clicking the Clear button i then issue the command RGPLOT Edit gt Plot gt Regions To fix the faces of the holes Geo Panel LoadsBC gt Structural gt Displacement gt Define by Regions Beginning Region 26 Displacement label AU All translations Value 0 Ending Region 26 Increment 1 Click OK Figure 6 29 Applying Displacement Boundary Conditions Beginning Region 6 Displacement label sur Alltranstations Value o Ending Region B t Increment fo Additional Displacement labels if any L2 LE tst C lt Ci its t S Cancel Repeat this procedure for regions 13 15 and 28 Next we will apply a pressure of magnitude 500 psi normal to the bottom face of the bracket as follows Geo Panel LoadsBC gt Structural gt Pressure gt Define by Regions Beginning Region 51 Pressure magnitude 500 Ending Region 51 Increment 1
30. a ett 3 5 4 What s New in COSMOSM 2 95 enn 4 1 5 COSMOS License Administrator eee evens 5 1 Types or COSMOS Licenses oet pasa sot oe se abe Od a ae ee edis 5 1 Idoatitie LiCS s uad 59r ERE seduces chews I E aA dades de 5 Node locked License 0 0 0 ccc eee eee eens 5 1 Hardware based License 0 cee ee eens 5 1 D mo LICEE E uas 2o oar Bae dr e i ae edhe E t 5 2 Features of the COSMOS License Administrator 0 5 2 FLEX Im C aA DUIS aou rare 2 Oe aa a a Aaa aaa 5 3 DUCI cad Gre EE E E See 5 4 Information Typ esra Ere oso od EARS oe eae eee ee ee aa ee 5 4 SUI c 4 amp de es oh eRe EOE ee EE ees ODES EE OES De E E ceca 5 5 Concede LICENSE ny cake cys eure vou bem uon SR T b DH DEF RE UR E 5 5 Configure COSMOS License 0 0 0 eee eens 5 6 Select COSMOS License File iade ee et 9 Rr ES 5 6 Set Port and Host of the License Server 0 0 0 0 e aane 5 6 System Seines TdDauaan ex 3a 3 83 ad SEHE WEE dU ded aes d eqs 5 7 License ReqQueS 24 422seh4nsngyrdeke Son d eec edt kun actin tur 5 7 Authorized Modules Tab 24 0 222644 s0se E des dcs d oca ers 5 8 Available COSMOS License Files 0 000000 cee eee ees 5 8 DEL Er OCUINGS VAD d cocoa per Quar eR bas oa bee deos 7 dra oR eS A 5 10 Configuring Redundant License Servers 0 000 cece eens 5 11 Combine License TaD as 0 44 44 den zr URS Sew haere ob dew Rd 5 13 Current Usado lab
31. about real constant set 1 Starting location of the real constant 1 Number of real constants associated with real constant set 1 2 Real constant RC1 Thickness 0 2 Click OK to accept real constant entries for set 1 Figure 6 6 Dialog Boxes for RCONST J RCONST x Associated Element group i Real Constant set NENNEN Cancel Start location of the real constants d Cancel O RCONST x Ma of real constants ta be entered E Canes J RCONST x ACI Thickness 0 2 HC2 Material angle Beta o Cancel D 8 20 COSMOSM Getting Started 4 P 6 13 Chapter 6 Getting Started amp m 5 m List and Verify Your Inputs To verify the element group material properties and the real constants you have just input you can proceed as follows I Geo Panel Edit gt LIST gt Element Groups Beginning element group number 1 Ending element group number 1 Increment 1 Click OK to accept the entries for element group listing Similarly you can list material properties Figure 6 7 Dialog Box for EGLIST and real constants Setting the View Beginning Element group ft Ending Element group i Increment Boo For this 2D problem the model is created in the X Y plane Cancel First clear the Display Window by clicking on the Figure 6 8 Dialog Box for Clear button in the Geo Panel Then adjust the View Setting view inside the Display Window Open the dialog box f
32. anel Analysis gt STATIC gt Run Static Analysis GEOSTAR will display status messages as it runs the analysis module When the analysis is completed the program will return to the Display Window and wait for your next instruction Note that an automatic stress calculation is performed by default However it can be deactivated by using the STRESS Analysis gt STATIC gt Activate Stress Calc command and setting the stress calculation flag off Displacements and stresses are calculated for all load cases Next perform a linear frequency analysis to calculate the lowest four natural frequencies and their corresponding mode shapes ll Geo Panel Analysis gt FREQUENCY BUCKLING gt Frequency Options Number of required modes 4 Click OK to accept the rest of the defaults Since the computation of natural frequencies involves the use of mass matrix you need to define material density or some lumped masses Otherwise the program will terminate because of a null mass matrix So define the material density Il Geo Panel Propsets gt Material Property Material property set number 1 Material property name DENS Value of the material property DENSITY 7 5e 4 Click OK and then Cancel before the next property To append the results of the frequency analysis to the same plate OUT file containing the linear static analysis results you need to turn the append flag on in the printing of the output file Otherwise the plate OUT
33. any work directory and give a name to the problem This name is common to all files related to that problem Each file has a different extension that determines the type of information it contains These files are referred to as the database files for that problem Any disk and subdirectory can be used The creation of databases in the COSMOSM directory should be avoided in order to keep the system files intact 4 Define element groups material properties and real constant sets using commands in the Propsets menu as follows a Use the EGROUP Propsets gt Element Group command to define all element groups to be used in the model b Use the MPROP Propsets gt Material Property PICK_MAT Propsets gt Pick Material Lib or the USR_MAT Propsets gt User Material Lib commands to define material properties needed for the analysis you plan to perform c Use the RCONST Propsets gt Real Constant command to define all needed sectional and other physical properties real constant sets 5 Generate the geometry of the model Take the time to think about your options Take advantage of all types of symmetry in the light of GEOSTAR s meshing capabilities 6 Activate the appropriate element attributes element group material property and real constant sets for parts of the model to be meshed next Remember that whenever an element is generated by meshing it assumes the active attributes The ACTSET command Control gt ACTIVATE gt
34. dra Beginning Polyhedron 1 Ending Polyhedron 1 Increment 1 Click OK The polyhedra list window opens Under the Elem size column a uniform element size of 0 668759 is assigned to all regions of the polyhedron Figure 6 26 Listing the Polyhedra of the Bracket 5 PHLIST 1 1 1 Ph Hef Elem _ size o Surface Regions 1 55 0 668759 0 0334379 To mesh the model with the default element size Geo Panel Meshing gt Auto Mesh gt Parts Beginning Part 1 Ending Part 1 Increment 1 Hierarchy check flag 0 NO Element order flag 0 1 High Number of smoothing iterations 4 Click OK COSMOSM Getting Started 4 P 6 37 Chapter 6 Getting Started Figure 6 27 Meshing the Bracket Part Beginning Part n Ending Part fo Increment i Hierarchy check flag tNo mj Element order flag rH mj Number of smoothing iterations Mo Cancel To view the mesh in the shade mode Geo Panel Display gt Display Option gt Shaded Element Plot Shaded plot flag 1 Flat shade Positive normal side color 4 Red Negative normal side color 7 Gray Tolerance intensity for Gouraud shading 0 2 Click OK Click the Repaint button to refresh the screen The following model will be displayed Figure 6 28 Bracket Model with Finite Element Mesh AE t E SCELUS L CA LES lake eae ra PoE des aia LT se LT n DT CLA NATA n Art
35. dsBC gt Figure 6 15 Applied Boundary Conditions STRUCTURAL gt Displace ment gt Define by Curves Beginning curve 1 Displacement label UX Value of the prescribed value 0 Ending curve number 1 Increment between curves 1 Displacement label UY Click OK Similarly constrain the bottom edge curve 9 Now if you plot the element Geo Panel Edit gt PLOT gt Elements the plate with boundary conditions you just defined will be displayed as shown in the figure It should be noted that GEOSTAR automatically fixes degrees of freedom that are not considered by the element at execution time The Z translation and all rotations are automatically set to zero since the PLANE2D element considers only X and Y translations Loading is specified next We will apply a force of 1000 Ib in the X direction at every node on the circle i e curves 2 7 10 and 12 Clear the display window by clicking on the Clear button in the Geo Panel then replot all curves Geo Panel Edit gt PLOT gt Curves Then start applying the forces IV Geo Panel LoadsBC STRUCTURAL Force Define by Curves Beginning curve 2 Displacement label FX Value of the prescribed value 1000 Ending curve number 12 Increment between curves 5 Click OK to accept the entries COSMOSM Getting Started 4 P 6 21 Chapter 6 Getting Started Repeat the above step to define the forces on the nodes associated with curve 10 Then clear the scree
36. e document that you have received 5 It is recommended to install all COSMOS products in the same directory 6 The installation procedure asks for a folder where COSMOSM will store the results of FEA studies Large files are needed to store results of large problems so this folder should have plenty of disk space 3 6 COSMOSM Getting Started 4 4 What s New in COSMOSM 2 95 This chapter lists the new features and enhancements in COSMOSM 2 95 STAR now gives a warning if the displacements become large It offers you an option to assume large displacements instead of using the small displacement theory The A STATIC command now allows you to specify large displacement solution STAR runs a number of load steps automatically You do not have any control on specifying how the load is incremented Unlike NSTAR you can only view results associated with the full load The A LIST command lists whether small or large displacement solution is used This option 1s available with the direct sparse and FFEPLUS solvers It is not available with FFE A new material model for Nitinol is now supported by NSTAR See online help for details The material type of the EGROUP command for SOLID TETRA4 and TETRA10 elements Op 5 has been expanded to include 14 NIT for Nitinol Material Model The MPROP command has been improved to help you define related material properties faster For example if you define SIGT S1 the SIGT F
37. e entries At this point you can turn off the grid lines using the Grid Off command in the Geometry gt GRID menu The model is shown in the following figure with grid lines removed after clicking the Paint button Mesh Generation V Geo Panel Meshing gt PARAMETRIC MESH gt Surfaces Beginning surface number 1 Ending surface number 1 Increment 1 Number of nodes per element 4 Number of elements on 1st curve 3 Number of elements on 2nd curve 3 Click OK to accept the defaults of spacing ratios for 1st and 2nd curves Figure 6 11 Creation of Curves 1 and 2 for Quarter Model Figure 6 12 Surface 1 Generation from Curves 1 and 2 COSMOSM Getting Started q gt 5 17 Chapter 6 Getting Started The mesh generated is shown in the following figure Figure 6 13 Meshing of Surface 1 Generation of the Rest of the Model The rest of the model will be created by generating three more surfaces by rotating the existing surface as well as the elements generated about an axis normal to its plane that passes through the center To do this we need first to create the proper coordinate system l Geo Panel Geometry gt COORDINATE SYSTEMS gt 3 Angles Coordinate system number 3 Coordinate system type Cartesian XYZ coordinate value of origin 50 50 0 Click OK to accept the rest of the entries The created system system 3 is now active Since we would like to automatically generate th
38. e remaining three surfaces similar to surface 1 the default meshing flag should be activated Il Geo Panel Control gt ACTIVATE gt Default Meshing Entity SF Default mesh flag On Click OK to accept the rest of the entries amp m 5 m 6 18 COSMOSM Getting Started 4 gt Chapter 6 Getting Started amp m 5 m The flag can also be activated by using the Status1 button and by toggling on the flag under DMSH column for surfaces We are now ready to generate the rest of the model Il Geo Panel Geometry gt SURFACES gt GENERATION MENU gt Generate Generation Number 3 Beginning surface number 1 Ending surface number 1 Increment 1 Generation flag Rotation Click Continue Z rotation 90 Click OK to accept the rest of the entries The generated model is shown in the Figure 6 14 Generation of the Full Model figure Node Merge and Compress The model has 4 surfaces 12 curves 9 keypoints 36 elements and a total of 64 nodes The meshing process has generated some coincident nodes at the common boundaries between surfaces Coincident nodes can be merged using the MERGE Meshing gt Nodes gt Merge command Note that in some cases e g contact problems coincident nodes should not be merged to allow relative motion Geo Panel Meshing gt NODES gt Merge Click OK to accept the entries in the dialog box 16 nodes will be merged After the merging process the node numbe
39. er on it and clicking the left button Menus Appearing at the top of the Geo Panel pull down menus can be used to select and issue GEOSTAR cryptic and extended or English like commands The root menus are grouped based on the functions of commands Some menus contain submenus If a submenu is selected the associated commands and submenus will appear If a command is selected it will also appear in the console These menus are Geometry for geometry development and processing Meshing for finite element meshing Propsets for specification of element groups material properties and real constant sets LoadsBC for loading and boundary condition specifications of various types of analyses Analysis for analysis options and executing analysis modules File for file processing Edit for editing geometry and finite element entities Control for activation and control of numerous processes during and after model generation including CAD interface options Display X for display options Results for postprocessing operations Each category listed above is represented by a cluster of menus and submenus in which commands relevant to the function of that category are grouped together In Appendix F of this manual a brief description of GEOSTAR commands is given to provide a quick reference and outline of their capabilities 6 4 COSMOSM Getting Started 4 p Chapter 6 Getting Started amp m 5 m Input Option
40. es The first group of files is the GEOSTAR database system and the second contains files that are generated by other COSMOSM modules More information is included in Appendix C Steps of the FEA Process in COSMOSM In this section it is recommended that a new user read about the commands that we refer to in order to get familiar with their overall functions 1 Decide the analysis type to be performed and the type of elements to be used for the model at hand It is important to evaluate and maybe actually solve several alternative models In COSMOSM you must make sure to use consistent units in all your input Plan a strategy to build the model Remember that the finite element mesh can be created either directly by defining elements and nodes or indirectly by creating and meshing geometrical entities There are eight types of geometric entities in GEOSTAR keypoints curves contours surfaces regions volumes polyhedra and parts Although it is not always necessary to create and mesh geometric entities to generate a mesh it would be advantageous in most cases to do so Geometry is a very convenient way to generate a model mesh it and apply the proper boundary conditions Analysis modules however do not use the information about geometric entities since all the necessary information is associated with nodes and elements COSMOSM Getting Started 4 6 7 Chapter 6 Getting Started 3 Execute the GEOSTAR program in
41. escape key aborts the current command and returns you to the GEOSTAR GEO prompt COSMOSM Getting Started 4 6 5 Chapter 6 Getting Started Keyboard Input Although GEOSTAR is primarily designed for mouse input users can enter commands through the keyboard as they become more proficient with the program and its commands To use keyboard input type the desired command in the console window press Enter and GEOSTAR will prompt you for the necessary inputs Important GEOSTAR Files GEOSTAR opens a number of files by adding different extensions to the user furnished problem name ufn Most of the files are database files for internal use by GEOSTAR The user does not need to interact with most of the files GEOSTAR uses a number of files to provide help and a number of other files for fonts and other internal purposes The important files that the user may need to access are as follows 1 ufn SES session file This ASCII file stores all action commands issued during a session The importance of the ufn SES file comes from the fact that it contains the command history of the model and can be used accordingly to regenerate the model in case of lost or corrupted database The file can also be used to generate a model on different computer systems 2 ufn GFM geometric or neutral file format This is the default name for the file generated by the GFORM OUT command This file is similar to the session file in the sense
42. et the client license to port host For example if the FLEXIm license server runs on a machine called Lion you can set your client machine to access license file from 7585 Lion instead of mapping and pointing to the license directory on the server machine 7585 is the default port for COSMOS License Server e Procedure to setup node locked FLEXIm licenses have been simplified If you have a node locked FLEXIm license you do not need to start COSMOS license server You simply need to copy the license dat file to the Micense directory During the installation all you need to do is to point to the right license file Everything else will be done automatically e The installation program gives an option to setup a FLEXIm options file e In addition to the old dongle this version supports USB Port Sentinel key which connects to a USB port freeing up the parallel port from any possible conflict with other peripherals USB Port Security Device Parallel Port Dongle The USB port Sentinel keys work on Windows 98 Windows ME Windows 2000 and Windows XP windows NT is not supported amp m 5 m COSMOSM Getting Started 4 5 3 Chapter 5 COSMOS License Administrator Status Tab The Status page gives information about the current status of software and hardware based COSMOS licenses If you have both license schemes installed you will be able to run a product as long as it is authorized by one of them
43. etting Started Introduction In COSMOSM the user interacts only with the GEOSTAR interface Internal calls and transfers of control to analysis modules are automated to give the user a one screen solution the user builds the model specifies all data required by the analysis executes the suitable analysis module and evaluates the results all from within GEOSTAR This chapter gives general information about GEOSTAR s main features and modes of operation The material covered in the next sections includes a description of the GEOSTAR screen various input options and some important database files In addition the chapter provides an outline of the general steps required for finite element analysis using COSMOSM This chapter will guide the user through model generation analysis and postprocessing of a simple problem to help illustrate the basic operation of GEOSTAR as a preprocessing analysis and postprocessing tool However GEOSTAR offers many advanced features and capabilities Your skill in using it will grow with continued use Additional examples to demonstrate different features of the program and types of analyses are presented in Chapters 5 and 6 of the COSMOSM User s Guide The online help includes an example that uses several types of elements COSMOSM Getting Started 4 6 1 Chapter 6 Getting Started GEOSTAR Screen After you install the program start GEOSTAR by double clicking the GEOSTAR icon in the COSMOS
44. f License Server Type in the name of the computer acting as the host of your COSMOS license System Settings Tab The System Setting page displays the detected host name user name Ethernet card address and dongle id If a dongle is detected and the Sentinel driver is not installed and running click Install Sentinel driver To request a new license click the Request New License button The Ethernet card and dongle ID s are automatically passed to this dialog box if detected You can make the request through the web or you can fax an automatically prepared message to SRAC Cosmos License Administrator X Status system Settings Authorized Modules Server Settings Combine Licenses System Settings Hostname mcg 0000000000 Username Happy cosmos User Ethernet Address pomme 0000000 Dongle ID errs Install Sentinel drivers Request Mew License Cancel Apply Help License Request Select Host ID Select a host ID from the drop down menu which contains detected Ethernet card address and or dongle ID or type in a different ID COSMOSM Getting Started 4 5 7 Chapter 5 COSMOS License Administrator amp m 5 m License request option e Launch COSMOS license request web page Choose this option and click OK to file your request through the COSMOS License web page Some of the fields are automatically filled out e Write Information to file Choose this option and click OK
45. file icense dat which is specific to your security device If you do not have the file the COSMOS License Administrator lets you request it through the Internet To start the COSMOS License Administrator click Start Programs COSMOS Applications License Administrator Tool COSMOSM Getting Started 4 3 3 Chapter 3 Installing COSMOSM amp m 5 m If you have received a node locked license no security device the icense dat file you have received must have your system ID encoded in it If you do not have the file the COSMOS License Administrator lets you request it through the Internet Network Installation File and License Server 1 Install the program and license file s on the Server machine 2 On each Client machine map the COSMOS directory on the Server and set the COSMOSM environment to point to the COSMOS folder on the server You can set the COSMOS working directory to a local drive You can also perform a stand alone installation on the client machines and use the COSMOS License Administrator tool to configure the license by pointing to the icense dat file on the Server License Server only 1 Copy the license file s on the Server machine Do not install the program files on the Server 2 Perform stand alone installation on each Client machine 3 Configure the license on each client machine by pointing to the license file s on the Server You may not run COSMOSM on the Se
46. generated keypoint in the proper direction Repeat the CREXTR command three times to create the other straight edges of the plate Create the center keypoint and the hole using the PT and the CRPCIRCLE commands examine ways to create circles by reading the on line help for commands in the Geometry gt CURVES gt CIRCLES submenu Use 12 segments to represent the circle Use the CT Geometry gt CONTOURS gt Define command to create contour number from the outer edges any one curve should be sufficient to define the contour since no alternative ways are available to close the loop Specify an average element size of 10 Use the CT command again to define contour number 2 as the edges of the hole Again any arc should be sufficient to define this contour You might try the CTNU contour to define the number of elements on each single curve instead of CT Use the RG Geometry gt REGIONS gt Define command to create region number 1 using contours 1 and 2 Use the MA RG Meshing gt AUTO MESH gt Regions command to mesh region 1 The generated mesh will be triangular Use the MARGCH Meshing gt AUTO MESH gt Region Mesh Type command to update the mesh to quadrilateral elements Third Exercise When we applied forces on nodes associated with curves 2 7 10 and 12 we had to do that in two steps since no one pattern can include all of them A powerful utility called selection lists can be very helpful in such cases Use the SE
47. icity should be given in Ib in forces in Ib and the units of resulting displacements are in inches and stresses are in Ib in There are several ways to model this problem Since this is a plane model surfaces and regions can be used In the approach illustrated below a surface is created and meshed to represent a quarter of the model The rest of the model is created by generating similar meshed surfaces The steps are shown in detail in the following sections Entering GEOSTAR It is always preferable not to work in the COSMOSM directory the user should use the working directory created after installation or create a new working directory Double click on the GEOSTAR icon to start GEOSTAR Use the File Save Da tabase As command to name the new problem as Plate COSMOSM Getting Started 4 P 6 11 Chapter 6 Getting Started When you enter Plate as a name for the problem all files related to this problem will have this name and some extension determined by the type of information they contain It takes GEOSTAR few seconds to set up the database files before returning to the GEOSTAR console with the GEO gt prompt GEOSTAR is now ready to accept commands which can either be typed at the prompt level or pulled down from the menus Specifying Properties It is a good practice to define element groups materials and real constant sets in the beginning All related commands are found in the Propsets menu Specify
48. ile C Program Files COSMOS Applicationstlicense Browse Fath to options file Program Files COSMOS Applications SRAC opt Browse Hostname of License Server Hostname zebra Hast ID Hostname Hast ID Hostname Hast ID Cancel Cancel To configure the COSMOS License Server the system administrator will need the following information 1 Location of the Imgrd exe file This file is located in License FLEXIm folder where refers to the COSMOS installation folder It is recommended that the user does not remove any files from this sub directory 2 Location of the license file It is recommended to keep the license dat file on the server machine in the License folder 3 Location of the log file The end user can specify the location of the log file The log file is useful for diagnosing and trouble shooting license failures 4 Location of the Options file The end user can customize the license usage through the options file Please refer to the FLEXIm end user manual MicenseMlexIm enduser pdf to get more information about how to use an Options file Where refers to the COSMOS installation folder After the License servers are installed and running you can view the contents of the log file to verify the licensed features amp m 5 m 5 10 COSMOSM Getting Started 4 p Chapter 5 COSMOS License Administrator amp m 5 m The Configure COS
49. indows by clicking on the New Win button in the Geo Panel 3 times then click on the Tile button Tie in the Geo Panel to place the windows in a tile formation Note that window 3 1s the active window since it is the most recently created To activate the Main window move the mouse to a place inside the Main window and click Adjust the view inside the window to the XY plane Then plot the first mode shape inside the first window l Geo Panel View Direction icon Click on the Z View button Close the View ll Geo Panel Results gt PLOT gt Deformed Shape Mode shape number to be plotted 1 Click OK to accept the defaults The above procedure can be repeated to plot modes shapes 2 3 and 4 in the corresponding windows The results are shown below in the following figure COSMOSM Getting Started 4 p 6 25 Chapter 6 Getting Started amp m 5 m Figure 6 18 Frequency and Mode Shape Results from the Frequency Analysis F_Mode 4 1e 003 F_Mode 1 235 3e 082 Hz F Hodez3 12mm F_Mode 2 393 6e6 0 087 Hz You can also animate any of the four mode shapes For example to animate the first mode shape active the first window clear the first window and then use the Animate command Il Geo Panel Results gt PLOT gt Animate Mode shape number to be animated 1 Click OK to accept the defaults You can repeat the above procedure to animate mode shapes 2 3 and 4 in the corresponding windows To switch to the pos
50. ing the Element Group Geo Panel Propsets gt Element Group Element group number 1 Egroup Category Area Element Name PLANE2D Click Continue as prompted and then OK to accept the defaults associated with the element group Specifying Material Properties Next define the material Figure 6 4 Dialog Box for EGROUP properties In this case linear elastic material the only needed properties are the Elasticity E Modulus EX and Poisson s Ratio Element Name EIME NUXY s Cancel Il Geo Panel Propsets gt Material Property Material property set number 1 Material property name EX Value of the material property EX 30e6 Click Continue to define more material properties for material property set 1 Material property name NUXY Value of the material property NUXY 0 30 Click Cancel to conclude material property entries for set 1 6 12 COSMOSM Getting Started 4 p Chapter 6 Getting Started Figure 6 5 Dialog Boxes for MPROP J MPROP x Material property set fi Material Property Name HEES Elasticity modulus in mat dir Cancel J MPROP Ea Property value 30e6 Cancel Poisson s Ratio NUXY is assumed to be 0 30 if not specified Specifying Real Constants Next the section properties are defined using a real constant set Il Geo Panel Propsets gt Real Constant Associated element group 1 Real constant set number 1 Click Continue to define information
51. ints points 0 0 100 0 0 and 100 100 0 0 Then by using these two points create a straight line to define the top edge of the plate Curve Generation ll Geo Panel Geometry gt CURVES gt Line with 2 Pts Curve number 1 Keypoint 1 2 Keypoint 2 3 Click OK to accept the entries The upper edge curve 1 connecting keypoints 2 and 3 will be created Il Geo Panel Geometry gt CURVES gt CIRCLES gt Circle in Plane Curve number 2 Keypoint at center 1 You can pick the keypoint by moving the mouse arrow to the keypoint and clicking on it once The keypoint will be highlighted and its label will appear in the dialog box Confirm your choice by clicking once more Keypoint on 0 degree line 3 Radius of the circle 10 Idee ede A dst eSNG Angle of the arc in degrees 90 Number of segments 1 Click OK to accept the entries Keypoint at center Boo The model is shown in the following Kewontonzeodegeslne 3 nn figure with grid lines removed Notice Radus lD 0 that the labels of points and curves are i pue displayed only because we activated their flags in the STATUS1 table _Cancel_ 6 16 COSMOSM Getting Started 4 b Chapter 6 Getting Started Surface Generation Next create a surface using two curves curves and 2 IV Geo Panel Geometry gt SURFACES gt Define by 2 Cr Surface number 1 Curve 1 1 Curve 2 2 Underlying surface 0 Click OK to accept th
52. luded in the vprobs folder in the COSMOSM installation directory A verification problem can be loaded into GEOSTAR by creating a new problem with any name and then loading the corresponding file using the File File Load command How to Learn About Stress Frequency and Buckling Analyses Refer to the COSMOSM Basic System manual This manual gives you detailed information and examples about using GEOSTAR to run stress frequency and buckling analyses using the conventional solvers STAR DSTAR and STRES Brief theoretical background 1s also provided The online help also provides a tutorial for static and frequency analyses COSMOSFFE Static and COSMOSFFE Frequency can be used to solve stress and frequency problems Refer to the COSMOSFFE User s Guide for information and examples on using COSMOSFFE Static to solve stress problems and COSMOSFFE Frequency to calculate resonant natural frequencies How to Learn About Other Types of Analysis The online help in GEOSTAR gives you procedures to run various types of analyses The COSMOSM Advanced Modules manual includes detailed 2 2 COSMOSM Getting Started 4 b Chapter 2 How to Learn COSMOSM information about using GEOSTAR to run dynamic response problems ASTAR nonlinear structural problems NSTAR heat transfer problems HSTAR fatigue problems FSTAR low frequency electromagnetic problems ESTAR and optimization problems OPTSTAR To use COSMOSFFE Thermal
53. n and replot the elements boundary condition and forces The model will be as displayed in the following figure The specified forces are associated with load case number 1 since no other load case was activated In this example we will use two load cases Load case 2 will be used to define vertical forces FY on the circular opening V Geo Panel Control gt ACTIVATE gt Set Entity Set label Load Case Click Continue Load case number 2 Click OK Figure 2 16 Load Case 1 Forces in the X Direction In a similar way define a force of 1000 Ib at each node on the circle in the Y direction The figure shows forces applied under load case number 2 Figure 6 17 Load Case 2 Forces in the Y Direction 6 22 COSMOSM Getting Started lt Chapter 6 Getting Started amp m 5 m Model Evaluation Since your analysis results will only be as good as the model you build you need to evaluate it for accuracy and completeness This step involves plotting the elements the boundary conditions and the applied forces so that you can inspect them Start with clearing the window display by clicking on the Clear button Then plot and list the elements l Geo Panel Edit gt PLOT gt Elements ll Geo Panel Edit gt LIST gt Elements In a similar way you can plot and list the boundary conditions LoadsBC gt STRUCTURAL gt DISPLACEMENT gt Plot and the applied forces LoadsBC gt STRUC
54. nel Driver Detected The Sentinel driver should be installed and running for this type of license to work The Status column tells you whether a license has been detected The Remarks column lists the version of the detected driver if any e Sentinel Driver Running The Status column tells you whether the driver is running e Sentinel Dongle Detected The Status column tells you whether a dongle has been The Remarks column lists the model and ID of the detected dongle if any Maintenance Information e Maintenance Number The Status column lists whether a maintenance number has been detected The Remarks column lists the detected maintenance number if any e Maintenance Expiration Date The Status column lists whether a maintenance expiration date has been detected The Remarks column lists the expiration date e Customer Name The Status column lists whether a customer name has been detected The Remarks column lists the detected customer name if any Refresh The Refresh button updates the status screen based on the current settings For example click this button after installing a dongle or copying a license file Configure License The Configure License button opens the Configure COSMOS License dialog box to let you configure your COSMOS license COSMOSM Getting Started 4 5 5 Chapter 5 COSMOS License Administrator amp m 5 m Configure COSMOS License The Configure COSMOS License dialog box lets yo
55. oes not start automatically go to your CD ROM drive in Windows Explorer and double click autorun exe file 3 Read the agreement and click the Yes button if you agree to all terms and conditions Otherwise click No to exit the installation program If you select Yes the COSMOS License Information window opens 4 Follow on screen instructions to copy program files and configure your license Installation Tips 1 Itis recommended to close all windows and applications before starting the installation procedure 2 When the installation has been completed we recommend that you use the COSMOS License Administrator to verify your license Refer to COSMOS License Administrator chapter for details COSMOSM Getting Started 4 3 5 Chapter 3 Installing COSMOSM 3 Ifthe installation procedure detects a previous installation it will offer you options to modify repair or remove the previous installation in addition to an option to configure your license If you choose to update an existing installation the program gives you a chance to save the standard material library file since you might have customized it 4 You need to configure the license before you will be able to run COSMOSM You can point to a license file type it 1f you get it by fax request a license through your Internet connection or choose to configure your license later on If you choose to type make sure to type in the license as it appears on th
56. og file 5 10 M Merge 6 9 merge 6 19 Meshing menu 6 4 monitor 3 1 N network 3 3 5 1 neutral format 6 6 Node locked 5 1 node locked 3 4 3 5 O on line help 6 2 output file 6 6 Output Options submenu 6 7 P plane stress 6 11 P method 6 10 port number 5 6 Propsets menu 6 4 6 12 pull down menus 6 4 push button 6 4 ES ad CAD Input 6 34 72 constant sets 6 8 6 12 d servers 5 3 sults menu 6 4 Rur Check 6 8 security device 3 3 3 4 3 5 semi batch 6 3 ge drivers 5 6 Sentinel key 5 3 Server 3 4 server 3 3 5 6 5 8 session file 6 6 setup 3 1 Software License Agreement 3 5 stand alone 3 3 3 4 STATUSI 6 15 step by step 6 10 surfaces 6 18 6 31 system requirements 3 2 T temperature contours 6 33 thermal 6 33 thermal analysis 6 33 thermal conductivity 6 33 U USB key 3 3 USB port 5 3 l 2 COSMOSM Getting Started
57. or view setting by clicking on in the erem ee view panel Geo Panel View Direction icon Aj qo 0 Click on the XY View button Close the View Setting the Grid GEOSTAR requires you to set up a grid if you want to snap keypoints with the mouse To display the grid the plane where the grid is to be displayed should be set A plane is defined by its normal the Z axis in this case Geo Panel Geometry gt GRID gt Plane Rotation Sweep Axis Z Offset on the Z axis 0 0 Click OK to accept the entries 6 14 COSMOSM Getting Started 4 Chapter 6 Getting Started amp m 5 m Il Geo Panel Geometry gt Grid On Click OK to accept the defaults Figure 6 9 Dialog Boxes for Grid Setting Asis Normal ta Plane ANNE Coordinate of Origin of Axis 75 booo Offset on Axis l Coordinate of Origin of Axis Y booo Grid Line Style sdd A Increment along 3 B Cancel Increment along Eoo Number of Increments along Booo Number of Increments along r Booo Grid Line Color Index 2 DakGray x Cancel GEOSTAR will define a grid starting from the origin of the axes with 20 divisions on each axis representing 5 units each This will allow for maximum coordinate values of 100 for both X and Y on the grid The dimensions of the grid can be specified as desired Creation of Quarter of the Model Click on the STATUS1 button in the Geo Panel a table will be displayed in which x Acti
58. osmos25 License license dat Edit Available D5 PARTS Tes N Demo 12 4an 2002 E Cosmos20 Cosmos25 License ic DS ASSEMBLIES Tes N Demo 12 4an 2002 E Cosmos20C Cosmos 5L Licenserlice Cw PARTS Tes 2 Floating 11 jan 2D0 2 585t3srac 3B3 Cw ASSEMBLIES Tes Floating 114an 2002 5abisracQ 353 GELD STAR Tes Floating 11 jan 2D0 2 585t3srac 353 LIHEAR STATIC Tes Floating 11 an 2 D2 585srac T363 LIMEAR FREH BLICK Tes Floating 11 an 2002 585 srac T363 SUERTE v Floating 14an 2002 Eo l B OPTIMIZATION Tes D rNAMIC RESPUNSI Floating 11 jan 2D0 2 585t3srac 353 Floating 11 jan 2002 585t3srac 353 an k PoP BR PR RR DR Refresh Set COSMOS license file list e cosmosmblicense license dat Browse The COSMOS license file can also be set as a combination of porttelhost and license files The files for a list of partt hosts in the list should be separated by a semicolon Cancel COSMOSM Getting Started 4 5 9 Chapter 5 COSMOS License Administrator Server Settings Tab The Server Settings page is to be used on the License Server machine Using this page you can install and configure the COSMOS License Server Configure COSMOS License Server service X Path to Lmgrd exe C Program Files COSMOS ApplicationstFlesml Browse Path to license file C Program Files COSMOS Applicationstlicense Browse Path to log f
59. r 2 Click on the Server Settings tab 3 Click Install COSMOS License Server button or Configure COSMOS License Server if the License server is already installed Cosmos License Administrator X COSMOS License Service Only for License Server Machine COSMOS License Server Installed Install COSMOS License Server Start Start COSMOS License Serer Stop Stop LUSMOS License Semer Retead Reread LUSMOS License file Display Log Dreplay Log File Display License File Display License File Remove Remove COSMOS License Server COSMOS License Server is not running Cancel Apply Help 4 The program detects the hostname of the machine executing the COSMOS License Administrator However you have to input the correct hostnames of the other 2 machines For the license file displayed above the screen below displays the scenario when the COSMOS License Administrator was executed on machine srac0369 whose host ID is 005004ad342d 5 Click OK to install configure the License Server 6 Repeat steps 1 through 5 on the other 2 License Server machines 7 Check the log file to see if the License Servers are running 5 12 COSMOSM Getting Started 4 p Chapter 5 COSMOS License Administrator Combine License Tab The Combine License tab lets you combine license files To combine the licenses select the desired license files and click the Combine selected files Check the Log
60. ram to install the drivers and in most case you don t need to reboot your computer You do not need to reboot if you are running Windows XP NT or 2000 NT You need to reboot if you are running Windows 98 or ME If you point to a license file COSMOS License Administrator will do all the necessary procedure to setup your license Gives a detailed list of all the available modules based on your license settings For each authorized module this list gives the information like license type expiration date 1f failed reason for failure etc COSMOS licensing is based on FLEXIm technology The FLEXIm license server needs to be installed on your system COSMOS License Administrator let you quickly start stop restart or remove the FLEXIm server For a client machine you can point to a license file on a server machine You do not need to setup the any system environment variables as required in earlier versions 5 2 COSMOSM Getting Started 4 Chapter 5 COSMOS License Administrator FLEXIm Capabilities COSMOS Licensing scheme is based on FLEXIm which has the following features e Support of redundant servers With this option you can setup one primary server and 2 secondary servers If the primary server goes down the secondary servers will resume its COSMOS licensing duties without any interruption e Client machines do not need to have read access to a license dat file placed on the server Instead you can s
61. rief instructions on how to learn COSMOSM and how to use the electronic documentation e Installing COSMOSM This chapter contains installation information and tips e Whats New in COSMOSM 2 95 This chapter lists new features and enhancements e COSMOS License Administrator This chapter contains detailed information about using COSMOS License Administrator to administer stand alone and network licenses e Detailed Examples This chapter contains step by step tutorial to help new users get started F COSMOSM Distribution Material Depending on the analysis bundles you acquire you will receive COSMOSM on dhh one of the following CDs e COSMOSWorks CD e COSMOS Products CD COSMOSM Getting Started 1 1 Chapter 1 Introduction Each CD includes the following COSMOSM software and utilities COSMOSM full version and all analysis modules Several versions of GEOSTAR supporting different numbers of nodes elements are automatically installed The databases created by these versions are not compatible with one another You will not be able to use one of them to open a database that has been created by the other The session ses and the gfm files are however compatible and can be used to reconstruct the model created by one version in another All analysis modules are included on the CD COSMOSM 2 95 Explorer The Explorer version is limited to 5 000 nodes elements The installation procedure installs the 64
62. ring several options opens 2 Click the Help button for a quick help on how to use electronic documentation 3 Click the Global Search button if you want to search all COSMOSM manuals 4 Click the Technical Support button for information to access technical support 5 Click the Copyright button for copyright information 6 To open a manual click its name 7 Once inside the Acrobat Reader a table of contents will be displayed in the left pane Click the desired section to display it Scroll search zoom in zoom out or print as needed The buttons on each page give quick access to searching printing and navigation 8 Youcan navigate easily throughout the book by clicking the desired topic in the left pane 2 4 COSMOSM Getting Started 4 amp m 5 m Installing COSMOSM Introduction This section provides you with general information on installing and operating the COSMOSM software The complete documentation of the program is also included on the CD ROM and can be easily browsed searched and printed A setup program called setup exe is provided to install the program on your computer system Administrator privileges are required to install COSMOSM on Windows NT XP and 2000 The following error messages will be issued by the system if you try to install the program on Windows NT or Windows 2000 platforms as a user without administrator privileges Failed to set COSMOSM Failed to set Path
63. ring will not be consecutive In finite element analysis the node numbers are not required to be continuous and no action is needed to remove the numbering gaps However it is a good practice to compress nodes Il Geo Panel Edit gt COMPRESS gt Nodes COSMOSM Getting Started 4 p 6 19 Chapter 6 Getting Started Click OK to accept the entries in the dialog box 13 nodes will be compressed Specifying Loads and Boundary Conditions GEOSTAR allows you to specify loading and boundary conditions on geometric entities The actual loading or boundary condition is applied to nodes element faces or elements associated with the specified geometric entities Clear the window display by clicking on the Clear button In order to apply constraints and forces on the curve entities you need to plot them I Geo Panel Edit gt PLOT gt Curves Click OK to accept the entries in the dialog box The directions of constraints are interpreted with respect to the active coordinate system Any coordinate system can be used to specify these boundary conditions In this problem we need to activate the global Cartesian system ll Geo Panel Control gt ACTIVATE gt Set Entity Select set label Coordinate System Click Continue Coordinate system number 0 Click OK to accept We will start by constraining the upper edge of the plate curve 1 6 20 COSMOSM Getting Started 4 Chapter 6 Getting Started Il Geo Panel Loa
64. rovides a tutorial and a How To section that are very useful The How To section shows you how to run each type of analysis The online help contains the full description of all finite elements with graphical illustrations This manual provides two examples in the Getting Started chapter The first example guides you step by step through building a simple geometry assigning material choosing the element type meshing defining loads and boundary conditions running stress analysis and visualizing the results The COSMOSM Getting Started 4 gt 2 1 Chapter 2 How to Learn COSMOSM amp m 5 m second example shows you how to import a solid model from a CAD system and analyze it in GEOSTAR Most of the steps are typical for other types of analyses After that read the first three chapters in the User s Guide Chapter 4 describes the types of finite elements available in COSMOSM The other chapters and appendices in the User s Guide give you more information and examples The COSMOSM Command Reference manual is basically similar to the on line help and provides detailed information for all the commands in GEOSTAR The Basic System manual provides background and detailed information about linear stress analysis frequency and buckling The Advanced Modules manual provides background and detailed information about advanced modules Verification problems are provided for every type of analysis The files of verification problems are inc
65. rver in this case since it does not have access to program files You can use the COSMOS License Administrator to check or reconfigure your license based on the license file You will need to install the security device and point to the license file icense dat specific to your security device If you do not have the file the COSMOS License Administrator lets you request it through the Internet To start the COSMOS License Administrator click Start Programs COSMOS Applications License Administrator Tool 3 4 COSMOSM Getting Started 4 b Chapter 3 Installing COSMOSM amp m 5 m If you have received a node locked license no security device the icense dat file you have received must have your system ID encoded in it If you do not have the file the COSMOS License Administrator lets you request it through the Internet If the installation program detects an existing installation it will give the option to create a new installation folder or update the existing one Starting the Installation To install COSMOSM 1 If you downloaded an executable from the web start the installation procedure by double clicking the file that you have downloaded 2 If you have received a CD insert the CD in the CD ROM drive The setup pro gram starts automatically Read the Welcome message and click Next The Software License Agreement window opens If you have turned off the autorun feature or if the setup d
66. s Mouse Operations The GEOSTAR program is designed to work best with a mouse The mouse makes it easy to select a command from a menu activate a push button or select an entity from the screen 1 Selecting a command Move the cursor arrow up to the desired menu Click the left button to pull down a menu and move the arrow down through the menu tree until you reach the command you need Click the left button again to select the command or submenu 2 Detailed command description Click on the help button in the Geo Panel or type help and the command name in the console window A full screen display of detailed help for the command will appear 3 Activating an icon Click once with the left button of the mouse The icon you select will be activated and its function will be performed 4 Selecting an item from the screen Point the mouse to the point curve surface or other entity you want to select and click the left button of the mouse GEOSTAR highlights the selected item and waits for your confirmation in the dialog box Click the left button again to confirm the selection If the highlighted item is not the one you want press the right button to select the next available entity Repeat the process until the desired item 1s highlighted and then click the left button to select it When an entity 1s highlighted its label is also listed in the dialog box to ensure proper identification The Escape Key The
67. specified options are associated with the active coordinate system which could be Cartesian cylindrical or spherical If the specified constraints are not enough the stiffness matrix or the equivalent for other analyses will be singular 12 Evaluate your model by plotting it in various views and settings Commands in the Display menu provide you with all the necessary tools Use multiple colors and zoom in on critical parts Listing and plotting of various loading and boundary conditions are also recommended 13 Use one of the Analysis Options family of commands in the Analysis menu and the associated submenus to specify the details of the desired analysis The Frequency Options command for example specifies the details of the procedure to be used in extracting the eigenpairs the eigenvalues and mode shapes The program assumes all default values if the corresponding command is not issued The List Analysis Option command can be used to list the active analysis options 14 Use one of the Run family of commands in the Analysis menu to transfer control to the corresponding module to perform the analysis and generate the desired results 15 If the analysis does not go through successfully a message will be printed on the screen This message 1s also printed in the OUT TEM for thermal analysis file Correct the error and run the analysis again 16 When the GEOSTAR screen returns pull down the Results menu and
68. stress variation for load case 2 as displayed in window 3 IX Geo Panel Results gt PLOT gt Path Graph You can use ANIMATE Geo Panel Results gt PLOT gt Animate The path variation graph is shown in Figure 2 22 COSMOSM Getting Started 4 6 29 Chapter 6 Getting Started amp m 5 m Figure 6 21 Path Variation of von Mises Stresses for Load Case 2 Along a Line Lin STRESS Le 2 Yon Mises 4Imgm ol Q00 000A Q00 000A mm _ _ a 0080 _ Es mmm s pem ES ee Em mmm Es o mmm EE a SS mmm z mmm mmm mmm a a ES 27 90000 tyez SO 8 5 9 22 9 75 Distance Secondary Load Cases Before concluding this example the procedure to define analyze and process multiple load cases is outlined X Geo Panel Results gt Combine Load Case New load case number 51 Load case number for first term 1 Load case factor for first term 1 Load case number for second term 2 Load case factor for second term 2 0 Click OK to conclude the command GEOSTAR uses these factors to calculate results for load case 51 The results for load case 51 can be list plotted and animated in a similar way to load cases 1 and 2 Results for load case 51 are shown in the figure below 6 30 COSMOSM Getting Started 4 Chapter 6 Getting Started Figure 6 22 Results from Load Case 51 Lin STRESS Lc 31
69. the defaults Next activate window 3 to plot the stress the von Mises stresses are selected in this example VIII Geo Panel Results gt PLOT gt Stress Load case number 1 Component VON von Mises Stress Click Contour Plot to select contour plot Click OK to accept the defaults of the contour plot dialog box COSMOSM Getting Started 4 p 6 27 Chapter 6 Getting Started Figure 6 19 Results from Load Case 1 Lin STRESS Lc 1 Lin DEF Lc 1 von Hlses 321 0000 0000 fod a mmmm TABULAM Lin DISP Lc 1 Lin DEF Lczi AARAU The user is encouraged to try various options in plotting the displacement and stress results Load case 2 can be processed similarly Results are shown below in the following figure 6 28 COSMOSM Getting Started 4 Chapter 6 Getting Started Figure 6 20 Results from Load Case 2 Lin STRESS Le 2 Lin DEF Lc z von Mises 697 0000 322 4000 357 0000 133 0000 TAA M 27 A000 Lin DISP Lcz2 Lin DEF Lc 2 Dlap Res ml 4004931 400623 000415 000208 AAA Ll E 016 You can trace the variation of results stresses and displacements in this problems along an arbitrary path defined by up to 20 nodes The results are viewed on an XY type graph in an automatically created window The X axis represents the normalized distance starting from the path s first node and the Y axis refers to the variation of results Let s find
70. the operating system level or issue the command File gt Edit a File from the File menu e You can list the model displacements and stresses using the commands provided in Geo Panel Results gt LIST You can also list extreme values of a displacement or a stress component Geo Panel Results gt Extremes e Finally graphic postprocessing may be performed to examine deformations displacements and stresses Visualizing Stress Results To generate a contour plot for the von Mises stress l Geo Panel Results gt Plot gt Stress Load case number 1 Component VON von Mises Stress Stress flag 1 Node Layer number 1 Face flag 0 Top Coordinate System 0 Click Contour Plot Click OK to accepts all the defaults COSMOSM Getting Started 4 b 6 41 Chapter 6 Getting Started Figure 6 32 Von Mises Stress Contour Plot Yon Mle 60538 00 22974 00 45410 00 37547 00 30283 00 227135 13156 00 7592 040 28 29200 To suppress the display of the element boundaries in the von Mises stress plot we will use the BOUNDARY command Display gt Display Options gt Set Bound Plot I Geo Panel Display gt Display Options gt Set Boundary Plot Boundary plot 0 None Geometry associated boundary flag 1 Yes Click OK Il Click on the Paint button to replot the stress contour plot without element boundaries as shown below Figure 6 33 Von Mises Stress Plot After Executing the BOU
71. to file your request by FAX The administrator opens the Notepad text editor and automatically prepares the message Save the file and fax it to SRAC x Select Host ID e17b5f8a0011 Dongle ID License request option f Launch COSMOS license request web page C White information ta file Cancel Authorized Modules Tab The Authorized Modules page lists the licensed features modules and products Available COSMOS License Files Lists available COSMOS License files You can set as a combination of license dat files and server ports identified by port host The items in the list of files or port host should be separated by semi colons For Example C Program Files Cosmos License License dat 7585 srac0369 7585 srac0370 7585 srac0371 is a valid list All items in the above list will be searched queried Click the Edit button to add a license file to the list Based on the list in the Available COSMOS License Files the table lists the availability license count number of simultaneous user for floating licenses license type expiration date and any remarks Click the Refresh button to update the table based on modified list of licenses 5 8 COSMOSM Getting Started 4 p Chapter 5 COSMOS License Administrator COSMOS License Administrator Status System Settings Authorized Modules Server Settings Combine Licenses Current Usage Available COSMOS License Files 585 sra00369 E Cosmos20 C
72. tprocessing of the linear static analysis use the Set Post button _ SetPost_ in the Geo Panel to select the postprocessing for Linear Structural analysis Load case 1 will be processed first The deformed shape will be plotted in window 1 Displacement resultant and von Mises stress contours will be plotted in window 2 and 3 respectively Activate and clear the first window 1 use the push buttons in the Geo Panel IV Geo Panel Results gt PLOT gt Deformed Shape Number of the load case to be plotted 1 Click OK to accept the defaults 6 26 COSMOSM Getting Started 4 Chapter 6 Getting Started Then activate and clear the second window V Geo Panel Results gt PLOT gt Animate Number of the load case to be animated 1 Click OK to accept the defaults A snapshot of the animated deformation is shown in window 1 of Figure 6 20 Next we will produce a displacement contour in window 2 and a stress contour plot in window 3 e VI Geo Panel Results gt PLOT gt Displacement Response Reaction Load case number 1 Component URES Resultant Displacement Click on Contour Plot to select contour plot Click OK to accept the defaults of the contour plot dialog box Nicer contour plots may be obtained by suppressing the plotting of element edges and plotting the boundaries of the model Vil Geo Panel Display gt DISPLAY OPTIONS gt Eval Element Bound Turn on the Boundary edge evaluation flag Click OK to accept
73. u configure your COSMOS license To open this dialog box click the Status tab and then click the Configure License button Configure COSMOS License X Browse C Set Part and Host of the License Server Port Number 7585 Hostname of License Server Cancel Help Select COSMOS License File Select this option and then click the Browse button to point to the license file Although you can use this option to point to a license file on a server it is recommended to use the other option Set Port and Host of the License Server in such a case so that the license will continue to work even if the location of the license file on the server changes Based on the license file the Administrator will figure out the type of the license If it detects that a dongle is required with the license file it will automatically install the required Sentinel drivers Set Port and Host of the License Server Select this option if the license file is placed on a license server You just specify the port number and the host name Using this option ensures that the license will continue to work even if the location of the license on the server changes Port Number The default number used by COSMOS License administrator is 7585 Check with your network administrator to get another port number in case the license does not work 5 6 COSMOSM Getting Started 4 p Chapter 5 COSMOS License Administrator amp m 5 m Hostname o
74. ve Sets current information on the status of several EG MP RC tS LC TC TP SEL flags controlling the plotting of geometrical a RUNI ENNDNU C MDIC PR vs m os ec 2 Prim Plot PCl Labl LClr Masinum Keep Mark Dish entities keypoints PT curves CR m E NN EN NM M 14 99 E CF Hl L m L C r7 surfaces SF etc their colors labels cr rrr label colors and other options are shown O B m E NM m LI ap w The table lets you toggle the flags to ON OF e r Or 0r r and select the color of the various entities Fra TI HH iv We will change the label status of points e s curves and surfaces from OFF to ON Lr am m Although this process is not always required EX we need it in this example to make it easier IEEEEFEFEENETINOS for you to follow the modeling procedure TEL Loma The operation is accomplished by placing the mouse cursor on ON OFF flags for PT CR and SF and then pressing the left button of the mouse to switch from OFF to ON After making the three changes save them by clicking on Save t1 o a a COSMOSM Getting Started 4 6 15 Chapter 6 Getting Started amp m 5 m Point Generation Now you need to create a keypoint at the center of the plate l Geo Panel Geometry gt POINTS gt Define Keypoint number 1 XYZ Coordinate value 50 50 0 Click OK to accept the entries Repeat the above command to specify two additional keypo

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