PDMS - STRESS-C User Guide
Contents
1. XxXxXd le XXX000 not set for Project XXX 15 If the project variables are set up but not correctly then the DARs library within STRESS C may report 43 59 Unable to open system DB for project XXX Is your environment variable set correctly 43 58 Unable to open template database for project 6 3 3 The DARs DLL If when you execute STRESS C you get a popup containing words similar to StressC exe Unable To Locate DLL The dynamic link library d8lib dll could not be found in your path You need to add the location of d3lib dll perhaps c CADCENTRE PDMS11 3 dars to your PATH or possibly copy d3lib dll to the same directory as the exe 6 3 4 The PDMS Message File If the PDMS message file cannot be located or is incorrect the message INVALID CALL TO D3EMSG may be issued If this occurs ensure that e The variable 7PDMSEXE is pointing to the correct PDMS 11 3 folder e The PDMSEXE folder contains the files modmac mac message dat and attlib dat e The file modmac mac in that folder contains text similar to S S ODULE 84 DARS S MODULE 84 DARS M DESI R M CATA R M PROP R M PADD R M DICT R M DESI DEFAULT BUFFER 2560000 16 PDMS STRESS C User Guide Version 2 4 1 7 Using STRESS C 7 1 Invoking STRESS C The interface can be started up on an MS DOS command line by typing StressC exe v lt version number gt b lt minimum pipe bore gt2. 4 PDMS STRESS C User Guide Version 2 4 1 3 Data for Pipe Stressing The PDMS Design and Catalogue databases contain the 3D geometry data on which a PDMS Model is based The databases also contain administrative and control data relating to pipes and components the relationships between them and a description of each item The design data extracted by the STRESS C interface consists of information such as Positions Pipe Diameters Pipe Thickness etc In order to use the PDMS model for pipe stressing additional data describing the physical properties of the piping components is required This data includes material property and component property data You can set up a PDMS Properties database to store this information using PDMS PROPCON or the Interface can use default values The default values can be replaced in CAESAR II if necessary The default values are for low carbon steel or material code 1 details of which are given in the CAESARITI Quick Reference Guide There are two types of data extracted from a PDMS Properties database Material Property Data and Component Property Data Sections 3 1 and 3 2 describe how the property data is extracted if the PDMS Properties database is set 3 1 Material Property Data The material property data in a Properties database is only accessed if appropriate reference attributes are set in DESIGN The reference attributes that must be set are MATR Material Reference and FLUR Fluid Refe
3. KERER FATAL SI TEFILE ERROR Please contact your CADCENTRE Support representative 6 3 2 Environment Variables STRESS C like PDMS requires several environment variables to be set up The run_stressc bat script sets up all those required to run the examples but you may need to modify this script to add the environment variables for your own projects The relevant variables are PDMSEXE PATH XXX000 where XXX is the project code XXXMAC where XXX is the project code The main PDMS Executable folder for example set PDMSEXE C CADCENTRE pdms11 3 This folder is used among other things to locate the PDMS message file The Windows search path used to find among other things DLLs needed by STRESS C This should include both the PDMSEXE folder and its dars subfolder eg PATH PDMSEXE PDMSEXE dars PATH The location of the Project database eg for project TVO set TVO000 C CADCENTRE StressC241 tvo000 Another Project location eg for project TVO set TVO000 C CADCENTRE StressC241 tvomac Note that although this variable has to be set up the corresponding folder need not exist If the PATH is incorrectly set up STRESS C may be unable to find the DARs DLL see section 6 3 3 If the project variables are not set up STRESS C may report Enter Project Name Environment variab PDMS STRESS C User Guide Version 2 4 1 lt cr gt to quit
4. n lt base memory allocation gt batch help The text within the square brackets denotes the command line options described in section 7 3 The environment conditions that are required for running StressC exe are defined by the run_stressc bat file Alternatively you can select the following options from the Start menu Start gt Programs gt CADCENTRE gt StressC241 gt Run StressC241 This will start up the interface without any command line options 7 2 Command Line Options The following command line options are available v lt version number gt This allows you to state which version of Caesar II is being used Before version 3 22 the headers are short whereas they are long in this and subsequent versions Additional fields are added to the output format of the cii files when version 4 20 is selected The STRESS C default is to produce version 4 20 output format b lt minimum pipe bore gt This allows you to define the minimum pipe bore to be processed The pipe bore is specified in the project units and internal conversions are made The default is 2 0in 50 8mm PDMS STRESS C User Guide 47 Version 2 4 1 n lt base memory allocation gt This allows you to set the base memory allocation quantity N1 described in the Generic Neutral Files section of the Caesar II Technical Reference Manual The N1 value and fractions of it set internal table sizes for STRESS C processing The default value for N1
5. Metric units are 21 34 26 67 33 40 42 16 48 26 60 33 73 03 88 90 101 60 114 30 168 28 219 08 273 205 323 85 355 60 406 40 45 A ATA 508 00 558 80 609 60 660 40 7TL2 220 762 00 812 80 863 80 914 40 965 20 1016 00 1066 80 1117 60 1168 40 1219 20 PDMS STRESS C User Guide 25 Version 2 4 1 Appendix C Loading the CAESAR file into CAESAR This Appendix gives a brief explanation of how the CAESAR file produced from the interface can be loaded into CAESAR You can ignore this Section if you are familiar with the CAESARII and running the External Interfaces from the CAESARII menus C 1 Creating _A file Once a cii file is generated by the interface it should be transferred to a PC where CAESAR program can be run You can then run CAESARII When the CAESARIIT window appears bring up the Neutral File Generator for from the main menu Tools gt External Interfaces gt CAESAR II Neutral File Set the conversion type to Convert Neutral File to CAESAR II Input File and browse to select the cii file Pressing the convert button will create a _A file in the same directory C 2 Converting Units The units are already included in the cii file If you require to change the units then bring up the Caesar IT Input File Units Conversion form from the main menu Tools gt Convert Input to New Units Select the _A file created above as the input file select the new units and the name of the new _A file Press the OK button to pe
6. file containing all of the replies that would be entered just as when STRESS C is run interactively each on a new line There will be no prompt about overwriting an existing cii file so always omit this from the file Remember to include a blank line where the user is prompted supply a lt cr gt to quit supplying pipe names Here is what the file job1 in would contain for the previous interactive example TVO USER PASSWORD MASTER 3 B 14 PIPE1 N The batch job would then be run using the run_stressc bat script with the command run_stressc jobl in CAESARII can load the files produced by the interface to display and analyse the pipes see Appendix C PDMS STRESS C User Guide Version 2 4 1 8 Error Messages As the interface processes the Pipes it may come across some errors in the model The interface will output error messages describing the nature of the error and then stop You can then carry on with another pipe or you can correct the model from within PDMS Once the model is corrected you can re run the pipe that had errors The formats of such errors are Element not connected lt element reference number gt Pipe Branch lt PDMS element name gt gt Attribute name Piping Component Propcon Ref gt Attribute name Where lt PDMS element name gt is the name of the element where the error exists and Attribute name indicates the attribute with the fault Attribute name may be one o
7. instructions on setting up your sitefile 6 2 Testing the Installation This section explains how to use the confidence tests supplied with STRESS C the PDMS to CAESARII Interface program Please check the readme txt file in the installation folder for any updated instructions Note that the test project TVO is an optional component of the Installation but is installed by default The confidence tests require this project The installation folder should contain the following tvo000 A PDMS test project for STRESS C readme txt A file containing any updated instructions for running the confidence tests RES_CADC Results produced from running STRESS C at CADCentre Ltd RES_YOU Results to be produced from running STRESS C by YOU StressC exe PDMS to CAESARII Interface Snapshots Folder which includes screen snapshots of the three pipes generated by the interface see below eg pipel run_stressc bat Script to set up the environment for and run the STRESS C executable in interactive or batch mode diff_results bat Script to compare results in RES_YOU against RES_CADC testit bat Script to run the STRESS C installation test in batch mode testit in File containing the commands for the batch mode installation test PDMS STRESS C User Guide S n Version 2 4 1 6 2 1 Running the Installation Test in Batch Mode 1 Open a Command Prompt window for example by choosing Programs gt Command Prompt from the Start menu 2 Cha
8. will be transferred Any other ATTA elements will be ignored The memory allocation for the STRESS C processing uses the base memory allocation quantity N1 described in the Generic Neutral Files section of the Caesar II Technical Reference Manual The default value for N1 is 2000 unless the n option is given on the command line see section 7 The main exclusions of the functionality for this implementation are Restraint data Tees are not recognised PDMS STRESS C User Guide ss i si i lt i i Version 2 4 1 Some PDMS elements are skipped including GASK NOZZ LJSE PCLA SHU VENT WELD Records are not generated in the CAESARII file in the following cases FLAN components with SKEYs set to FLLB or FLBL INST components with SKEYs set to IDPL or IDFL PCOM components with SKEYs set to PL SP SR SB EX or FX If any of these components are at the end of a pipe run the dimensions for the last items could be affected because appropriate records have not been created The interface currently creates single nodal records for components such as Tees and standard Elbows If these components do not have off leg or out leg connections in the model the dimensions and the model for these components may be affected in CAESAR II PDMS STRESS C User Guide Version 2 4 1 5 Output from STRESS C The interface generates two text files The text file with a cii suffix is the CAESARII neut
9. ING Fluid reference not set WARNING aterial reference not set WARNING Fluid reference not set WARNING aterial reference not set WARNING Fluid reference not set WARNING aterial reference not set WARNING Fluid reference not set Process another Pipe Y N N Success 6 3 Troubleshooting the Installation 6 3 1 StressC License 14 Enter Pipe name or lt cr gt to process or lt q gt to quit Enter Pipe name or lt cr gt to process or lt q gt to quit Enter Pipe name or lt cr gt to process or lt q gt to quit Enter Pipe name or lt cr gt to process or lt q gt to quit Enter Pipe name or lt cr gt to process or lt q gt to quit Enter Pipe name or lt cr gt to process or lt q gt to quit 100 B 1 B3 100 B 1 B3 250 B 5 Y 250 B 5 B1 250 B 5 B1 250 B 5 B2 250 B 5 B2 100 C 12 2 100 C 158 100 C 168 Y 100 C 12 B 100 C 12 B 100 C 12 B1 100 C 12 B1 100 C 12 B2 100 C 12 B2 100 C 12 B3 100 C 12 B3 100 C 12 B4 100 C 12 B4 100 C 12 B5 100 C 12 B5 100 C 12 B6 100 C 12 B6 100 C 12 B7 100 C 12 B7 100 C 12 B8 100 C 12 B8 To run STRESS C you must have a FLEXMAN License for both Stress C itself and also for PDMS PDMS STRESS C User Guide Version 2 4 1 If you do not have the correct licenses or if they have expired or if your FLEXMAN setup is incorrect you may receive the following error message
10. SS C will generate warning messages during processing to help you resolve any problems before the information is imported into CAESARII Warnings will be generated for material and fluid references that are not set at the branch being processed as well as pipe bores that are not found in the internal bore tables For example WARNING Fluid reference not set 3 B 14 1 WARNING Fluid reference not set 3 B 14 2 WARNING No matching pipe bore found xWARNING Branch bore is less than 2 00in Branch will not be processed WARNING Branch bore is less than 2 00in Branch will not be processed WARNING Branch bore is less than 2 00in Branch will not be processed After successful completion of the run you are prompted Process another Pipe Y N N PDMS STRESS C User Guide 4g Version 2 4 1 If you press Y in response to the prompt the interface will go back to the beginning and ask for the pipe to be processed and the output filename If you press N or just press RETURN the program will exit with the message Success Sample dat and cii output files are supplied on the installation tape or CD CAESARII can load the files produced by the interface to display and analyse the pipes see Appendix C 7 4 Batch Operation of STRESS C 20 STRESS C operates in batch mode when it is run with the command line batch option and requires a file containing details of the job Form a
11. STRESS C PDMS to CAESARII Interface Version 2 4 1 User Guide CADCENTRE NX STRESS C strc241 man1 doc1 PLEASE NOTE CADCENTRE has a policy of continuing product development therefore the information contained in this document may be subject to change without notice CADCENTRE MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS DOCUMENT INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE While every effort has been made to verify the accuracy of this document CADCENTRE shall not be liable for errors contained herein or direct indirect special incidental or consequential damages in connection with the furnishing performance or use of this material This manual provides documentation relating to products which you may not have access to or which may not be licensed to you For further information on which products are licensed to you please refer to your licence conditions Copyright 1995 through 2001 CADCENTRE Limited All rights reserved No part of this document may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without prior written permission of Cadcentre The software programs described in this document are confidential information and proprietary products of Cadcenire Ltd or its licensors For details of Cadcentre s worldwide sales and support offices ac
12. ccececeeeeeeeeeeeeees 15 6 33 The DARS DUD eriei e e a aoe Gaetan 16 6 3 4 The PDMS Message File cccccccccccceccesssseseeeceeeeeeees 16 7 USING STRESS C iin evis ccsccevennsscieenvecidsineennsinnet eter venninnstewieweasetennes 17 k1 Invoking STRESS C heee css ficevcee sbi evs bs des cad ctaba sxe eaves Oils totes cat ved ve 17 7 2 Command Line Options anna rinin a E A E A 17 7 3 Interaction with STRESS C sy iiis ccesessecasaeseatasendeciasnsssasasiceasnncacsaazesdeccasace 18 7 4 Batch Operation of STRESS C cc cccsssesccccccceceeesesseseeecccseeeeuaeenens 20 8 Error Messages lt 3 cicuh ten ceuttheasttetinnstinths apitubhtaniiubhidpibusinenltubindshtatintes 21 9 Notes on the Translation ssseeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 22 Appendix A Properties tisscacssiscisiscasccis ns siniieiea nse ncnnniiennans 23 Appendix B Bore Sizes Used cceccceseeseeeeeeeeeeeeeeeeseneeeeeeeeeeeeees 25 Appendix C Loading the CAESAR file into CAESAR 26 C 1 Creating _A file cccccccccesssssessccccceececnssssssccccsseeaensssssssssssccesseeaensesss 26 C 2 Comrverting Units arana e aa aA R R A a Ra 26 C 3 inputting the Data sree a aO S 26 CA Viewing the Dataset nssticiiiin a ieee A a S 27 C 5 Rigid Weights and Anchors ccccccccssssssseeecceeccecaaeeseeecceceeeeeeeeaaaaanees 27 C 6 Error Checking and Analysis ccccsssssseeccceeecceasesse
13. cess our website at http www cadcentre com location Cadcentre Ltd High Cross Madingley Road Cambridge CB3 OHB UK Contents 1 Introduction srcarcenccessreaccactexeceicbeegececttintsicen stadyccbtntsvnevimcasanncmabeadusnwtdaaes 3 2 Before You BeQinicciccccicciscicccccceiecseiseesnserseteroiniecsinnessnnertadecedsanieenas 4 Data for Pipe Stressing jisiscissiscincsntintiniineie etter 5 3 1 Material Property Data cccccccccccccccssssssssseeeeccceeeecaeaeeeeecceseesauaaseeeeeees 5 3 2 Component Property Data ccccccccccsssssssecccccecccecceaeesseeeecccseeeeusseeeeecees 6 4 Mp tto STRESS GC isis ci cat saavaaniseesaavewes nidvinnnanineva nandacddandanantesas 7 5 Output from STRESS C ssn ccicccicsctastienteastceteantcansanenenssensnewsneenensnanes 9 6 Installing STRESS C aieicssecasdeawecavseasseavdeanecavdeassdasduarsnardeduccatcassicaasin 10 6 1 Installing the Cadcentre Sitefile ccccccccceccesssseeeeccceeeceeeeeaaeesseeenss 11 6 2 Testing the Installation cccccccccccccccsssssssseeeeeccceeeeeesseeseeeeccceeeeeuuaenees 11 6 2 1 Running the Installation Test in Batch Mode 12 6 2 2 Running the Installation Test Interactively 12 6 3 Troubleshooting the Installation ccccccccccccceessseseseeeeeccceeeeeesaseeess 14 6 31 Stress C Licensen ainet neha Vecacier ved dciante ulin chen dtanes 14 6 3 2 Environment Variables ccccccccccccccccccccce
14. eccceseeeeaasaeseeeceess 27 PDMS STRESS C User Guide Version 2 4 1 1 PDMS STRESS C User Guide Introduction CAESARII is a PC based program developed and marketed by COADE Engineering Physics Software Inc USA It is an engineering tool used in the mechanical design and analysis of piping systems The PDMS to CAESARII interface STRESS C extracts data from PDMS databases and outputs a CAESAR neutral file which is suitable for input into CAESARII Details of CAESARII neutral files are given in the CAESARII User s Manual This release of the PDMS STRESS C interface version 2 4 1 is compatible with CAESARII version 4 20 PDMS STRESS C is based on PDMS DARs Mk11 3SP1 and runs under Windows NT Version 4 0 Service Pack 5 Please check the letter accompanying the StressC release for any changes to these versions as this manual is not always revised for each new release Version 2 4 1 2 Before You Begin It is assumed that you are familiar with the following e CAESARII e The general principles of pipe stress analysis techniques e PDMS operations and PDMS databases e Ifyou want to set up a Properties database containing the physical properties of pipes you should also be familiar with PDMS PROPCON For more information on CAESARII refer to the CAE SARII User s Manual For more information on PDMS refer to the PDMS manuals in particular the PDMS DESIGN Reference Manual and the PDMS PROPCON Reference Manual
15. f the following HBORE PHEAD HREF HREF Type TBORE PTAIL TREF TREF Type Ppoint 0 CREF REF CRFA MATR FLUR TYPE Problems with Attributes PDMS STRESS C User Guide S A Version 2 4 1 9 Notes on the Translation e Node numbering starts from 10 and is incremented by 10 e PDMS ATTA numbering starts from 20 000 and is incremented by 10 You can use ATTAs as Anchor points in CAESARII e Connection References start from 25 000 and are incremented by 10 e The orientation displayed in CAESARII is the same as PDMS ISO 3 from DESIGN e Conversion units that is project units are extracted from PDMS Design databases Imperial units are ENGLISH in CAESARII metric units are SI in CAESARII If the project units are imperial the CAESARII output file will be in ENGLISH units 22 PDMS STRESS C User Guide Version 2 4 1 Appendix A Properties This Appendix lists the properties that can be extracted from a Properties database and the elements that store the values The default values are based on a low carbon steel or material code 1 and they are used if a Properties database is not accessed Young s Modulus If the element TYOU exists the value of the element YOUN will be used The default value is 29500000 0 Poisson s Ratio If the element TPOI exists the value of the element POIS will be used The default value is 0 292 Expansion Coefficient If the element TEXP exists
16. he PDMS main folder is located This folder name is then used to update the RUN_STRESSC BAT file by adding the PDMS DARs directory into the PATH environment variable This enables STRESS C to find the DARs Dynamic Link Library DLL at run time Note that is possible to install PDMS without installing the DARs system If this has been done re run the PDMS Installation to add DARs RUN_STRESSC BAT can be run from the MS DOS command line this will allow you to run the interface from any directory For an interactive STRESS C session run RUN_STRESSC BAT without any command line arguments For a batch session run it with the name of the file containing the batch commands as the command line argument Extra STRESS C program arguments can be specified in the STRESSC_OPTIONS environment variable For command line use you can set up a command alias to run STRESS C from any directory eg if STRESS C is installed in C CADCENTRE StressC241 doskey stressc C CADCENTRE StressC241 run_stressc bat The CD supplied by Cadcentre also contains some examples a README file and a PDMS test project The details on how to run STRESS C using the examples are given in the README file PDMS STRESS C User Guide Version 2 4 1 6 1 Installing the Cadcentre Sitefile You will need to obtain licences for the appropriate version of STRESS C currently 2 4 1 from Cadcentre for each machine to be used Please now read the FLEXMAN Installation Guide for
17. is 2000 unless the n option is given on the command line batch This option allows you to run STRESS C without needing to input the project name user name and password interactively This means that STRESS C jobs can be fully predefined and run or rerun as required Batch mode does not prompt when an existing cii file is to be overwritten See below for further details help This option causes the STRESS C program to display its banner and details of its usage from the command line 7 3 Interaction with STRESS C 18 When you start up STRESS C the interface banner is displayed along with the PDMS DARs and operating system version For example KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK KK STRESS C Version 2 4 1 Jul 24 2001 Cadcentre Ltd Copyright c 1995 through 2001 PDMS to CAESARII Neutral File Output KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK KKK KKK KK PDMS Professional DARs C Interface Mk11 3 SP1 WINDOWS NT 4 0 19 Apr 2001 09 49 You will be requested to enter the project name Enter Project Name lt cr gt to quit TVOd You will be requested to enter the username and password Enter Username Password lt cr gt to quit SYSTEM XXXXXx You will be prompted to enter the MDB name The name must be a PDMS name preceded by an optional slash After the MDB name has been entered the current project units will be reported This i
18. le gt Batch Run from the PIPING QUIT MENU to continue with the static analysis of the run An analysis is carried out and you should be able to activate appropriate options i e Statics option from the main menu to see the results The CAESARIT User Manual explains further how to start the analysis process and how to view the results PDMS STRESS C User Guide 97 Version 2 4 1
19. nformation PDMS STRESS C User Guide Version 2 4 1 is used to determine the conversion units that will be passed to CAESAR Enter MDB Name lt cr gt to quit APPLIcd You will be prompted to enter the name of the pipes to be processed The names must be valid PDMS names preceded by an optional slash The program accepts more than one pipe i e a network of pipes by entering the pipe names at the prompt A carriage return entered here signifies the end of inputting pipes Quitting from the program is possible by entering Q You will then be prompted to enter the name of the output file which will be input into CAESARIT CAESARII requires that input filenames for jobs should not be longer than six characters The name does not require a preceding slash It can be a full path name If the file already exists you will be prompted as to whether the file should be overwritten or not Enter Pipe name or lt cr gt to process or lt Q gt to quit 3 B 14 Enter Pipe name or lt cr gt to process or lt Q gt to quit Y Enter CAESARII output file name Must be 6 characters or less PIPE1Y C3DAT cii exists Overwrite Y N Yd Creating CAESARII ouput file PIPE1l cii Creating CAESARII ouput file PIPE1l dat The interface creates two files based on the output filename one filename with an extension cii and one filename with the extension dat for example PIPE1 cii and PIPE1 dat STRE
20. nge to the StressC installation disc and folder for example cd d C cadcentre StressC241 3 Run the test script testit This script testit bat takes input commands from the testit in file and writes its results into the RES_YOU folder 4 Run the comparison script diff_results This script diff_results bat compares the standard results supplied in RES_CADC with those you have just created There should be no major numerical differences Files with extensions cii in the folder RES_YOU are CAESARII neutral files and may be transferred to CAESARII for stress analysis All these files have their rigid weights set In CAESARII you need to set at least one anchor point Read the STRESS C User Guide especially Appendix C C 5 Rigid Weights and Anchors you do not need to set rigid weights unless you want to modify the existing weights The snapshots of the pipes you have just processed are in the snapshots folder Read the file Readme txt from that folder 6 2 2 Running the Installation Test Interactively This section details the interactive equivalent to the testit script used above 12 PDMS STRESS C User Guide Version 2 4 1 1 Open a Command Prompt window for example by choosing Programs gt Command Prompt from the Start menu 2 Set up a command alias for the interface eg doskey stressc C CADCENTRE StressC241 run_stressc bat 3 Change to the RES_YOU sub folder of the STRESS C installation folder for e
21. perties database The SPCO for implied tube is referenced by the branch head tube specification HSTU and the component leave tube specification LSTU 6 PDMS STRESS C User Guide Version 2 4 1 4 Input to STRESS C PDMS Pipes and Branches are the only PDMS elements that the interface can process If you input a Branch the interface will process all Branches belonging to the owner Pipe of the input Branch It is possible to extract a piping network It is however the user s responsibility to make sure that the pipes within a network are connected correctly If the program finds that a connection does not exist it will prompt you with an indication of where the problem is by displaying a database reference of the element Note the following points about design data input to the interface Branches with bores less than or equal to 2 inches or 50 millimetres will not be processed unless the b option is given on the command line see section 7 Pipe bores that are not included in a predefined table stored in the interface will not be processed Pipes must have actual bores in the range 0 84 inch to 48 inches for Imperial units and 21 34 millimetres to 1219 2 millimetres for metric units See Appendix B for the details of these tables Piping Components must have ISODRAFT Symbol Keys Connection References of the model must be correct ATTA elements whose ATTY attribute is either unset or set to NUL are assumed to be supports and
22. ral file that is used as an input file to the CAESARII program This file consists of all the data necessary to perform an analysis in the CAESARII program The cii files will have to be transferred to a PC where they can be read in by CAESARIT The text file with a dat suffix is a work file that contains the connection reference information for the pipes This file gives you information on the elements processed and their nodal location with respect to each other It is not required by CAESARII The first section of the dat file contains information on pipe head pipe tail component connection references and positional data The second section contains the from node and to node data This section mimics the CAESARII Data Matrix file format Additional fields are inserted to show the from element type and to element type PDMS STRESS C User Guide Version 2 4 1 6 Installing STRESS C 10 STRESS C is a PDMS DARs Data Access Routines based application and therefore must be used within a PDMS environment The environment variables required by PDMS are also required by STRESS C The PDMS environment must exist as outlined in the PDMS Installation Guide The interface works with the FLEXMAN security system In order to install STRESS C insert the CD and follow the instructions After extracting the release your main Cadcentre product release directory will contain a new subdirectory named StressC241 During the installation t
23. rence for PDMS Branches These reference attributes point from the Branch to elements in the Properties database e The Material Reference MATR is used to obtain Young s modulus Poisson s Ratio Expansion Coefficient Pipe Density e The Fluid Reference FLUR is used to extract Fluid Density See Appendix A for more details PDMS STRESS C User Guide 5 Version 2 4 1 3 2 Component Property Data Like the Catalogue database the Component Property data in the Properties database is referenced from the specification component SPCO The Properties database is referenced from the component reference CMPR whereas the Catalogue database is referenced from the catalogue reference CATR These references are independent which means that there is not necessarily a one to one relationship between catalogue component and the property component The component hierarchy in the Properties database is as follows e CMPW component world e CMPT component type e CMPD component data e TUBD tube data The TUBD and CMPD elements store the physical data and it is these elements which are referenced by the component reference CMPR The Outside Diameter OUTD Actual Bore ACBO Component Weight CWED and Corrosion Allowance CORA attributes of these elements are the component properties which are accessed by the interface For more details see Appendix A Note that implied tube must always have a TUBD data element in the Pro
24. rform the conversion C 3 Inputting the Data From the main menu open the required _A file All the data generated by the interface should now be visible 26 PDMS STRESS C User Guide Version 2 4 1 C 4 Viewing the Data If you want to look at the data graphically bring up the Piping Input form from the main menu Input gt Piping From the main menu of this form bring up the required graphical view form Plot gt Standard Graphics or Plot gt 2D Modeler If you require to view it in spreadsheet format select Edit gt List C 5 Rigid Weights and Anchors You can input Rigid Weights for all valid elements which can have rigid weights for example Valves Flanges Pcoms etc Note that Bends do not have rigid weights You should also enter at least one Anchor point this can be done while using the Piping Input form from the main menu Input gt Piping Decide where the Anchor should be placed and move to its element with the CaesarII user interface and then add a Restraint of type Anchor The piping can be checked by selecting File gt Start Run C 6 Error Checking and Analysis Error checking can be done using the Piping Input form Display this by selecting from the main menu Input gt Piping The piping can be checked from the Piping Input main form by selecting File gt Start Run This will perform a series of checks on the elements if there are no fatal errors during this stage you can then activate Fi
25. the value of the element EXPA will be used The default value is the value of the Design attribute TEMP for the Branch Material Density If the element TDEN exists the value of the element DENS will be used The default value is 0 28993 Fluid Data If the element TDEN exists the value of the element DENS will be used The default value is 0 0 Wall Thickness If the Outside Diameter OUTD and Actual Bore ABOR elements are set wall thickness can be calculated The default value is 0 25 inches 6 35 mm Corrosion If Component data for Properties Database is set the corrosion allowance is extracted from the attribute CORA PDMS STRESS C User Guide 9g Version 2 4 1 24 The default value is 0 0 Component Weight If Component data for Properties Database is set then component weight is extracted from attribute CWEI The default value is 0 0 PDMS STRESS C User Guide Version 2 4 1 Appendix B Bore Sizes Used This Appendix presents the tables of actual bore sizes used in the interface The interface allows bore sizes within the ranges included in the tables below Actual bores allowed in Imperial units are 0 840 1 050 1335 1 660 1 900 2 375 Ze hd 3 500 4 000 4 500 5 5163 6 625 8 625 10 750 12 750 14 000 16 000 18 000 20 000 22 000 24 000 26 000 28 000 30 000 32 000 34 000 36 000 42 000 48 000 Actual bores allowed in
26. tput file name PIPE1 xx Creating CAESARII output file PIPEl cii xx Creating CAESARII output file PIPEl dat WARNING aterial reference not set 100 B 1 Bl1 WARNING Fluid reference not set 100 B 1 Bl1 WARNING aterial reference not set 100 B 1 B2 WARNING Fluid reference not set 100 B 1 B2 PDMS STRESS C User Guide 13 Version 2 4 1 Material reference not set Fluid reference not set WARNING WARNING Process another Pipe Y N Y Enter CAESARII output file name PIPE2 xx Creating CAESARII output file PIPE2 cii xx Creating CAESARII output file PIPE2 dat WARNING aterial reference not set WARNING Fluid reference not set WARNING aterial reference not set WARNING Fluid reference not set Process another Pipe Y N YQ Enter CAESARII output file name PIPE3 Creating CAESARII output file PIPE3 cii Creating CAESARII output file PIPE3 dat WARNING aterial reference not set WARNING Fluid reference not set WARNING aterial reference not set WARNING Fluid reference not set WARNING aterial reference not set WARNING Fluid reference not set WARNING aterial reference not set WARNING Fluid reference not set WARNING aterial reference not set WARNING Fluid reference not set WARNING aterial reference not set WARN
27. xample cd d C cadcentre StressC241 RES_YOU 4 Run STRESS C by typing the alias name eg stressc 5 Ifeverything is OK the interface will produce some prompts and messages and require user s input as follows User responses are shown in Bold Italic 1ike this The Enter or Carriage Return key is shown as lt 7 Some lines have been slightly modified and some blank lines removed to improve the layout KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK x STRESS C Version 2 4 1 Jul 24 2001 s x Cadcentre Ltd Copyright c 1995 through 2001 5 x x PDMS to CAESARII Neutral File Output KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK nter Project Name lt cr gt to quit TVOY nter Username Password lt cr gt to quit SYSTEM XXXXXx m m PDMS Professional DARs C Interface Mk11 3 SP1 WINDOWS NT 4 0 19 Apr 2001 09 49 This version of PDMS was issued to Cadcentre Altrincham nd will only operate on hardware specified to CADCENTRE w PDMS Professional DARs Mk11 3 SP1 WINDOWS NT 4 0 19 Apr 2001 09 49 Copyright CADCENTRE 1974 to 2001 Issued to Cadcentre Altrincham T Enter MDB Name lt cr gt to quit APPLIcd Current Units are MM Bore MM Dist Enter Pipe name or lt cr gt to process or lt q gt to quit 100 B 1 Enter Pipe name or lt cr gt to process or lt q gt to quit Y Enter CAESARII ou
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