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1. Control Control Square Indicator Control Motorised Indicator Hand Indicator D Rigid Element Pressure Reducing and i Relief Vent 3 Way Control 3 Way Control Three Rigid Elements or Square 3 Way Control Three Pipes with 3W Motorised Indicator and 3 Way C trated M oncentrated Mass Control Hand Indicator 16 PDMS Component Connection Points Component in Keyword used Description checkSTRESS in Neutral File 4 Way Control Square Indicator 4 Way Control 4 Way Control Motorised Indicator 4 Way Four Rigid Elements or Four Pipes with Concentrated Mass Control Hand Indicator ELBOW or BEND Elbow Butt Weld 90 and 45 Deg Screwed with Female Ends Elbow Compression Screwed with Male Ends Elbow Socket Weld Elbow Reducing Bend Mitre Lobster Back Butt weld and Lobster Back Bend and Pulled Butt Weld with a Connection Compression with a Connection Screwed Female with a Connection Socket Weld with a Connection Bend Pipes with Branch SIF Flanged with a Connection TW Welding TEE Bend Mitre with a Connection Flanged Butt Weld Bend Mitre with a Connection Lobster Back with a Connection and Pulled with a Connection Butt Weld 180 Deg Return Flanged 180 Deg Return and EL Pulled 180 Deg Return FILTER Filter Strainer Straight Through o Rigid Element 17 PDMS Component Connection Points Component in Keyword used Description checkSTRESS in Neutral Fil
2. Plate Slip Ring Spectacle Blind Reducer Concentric Reducer Concentric Butt Weld Fabricated from Plate Swaged from Pipe Compression Flanged Fabricated from Plate Flanged Swaged from Pipe Reducer Concentric Flanged Nipple Screwed Socket Weld Bush Socket Weld amp Special Reducing Flange Reducer Concentric with a Butt Weld Connection Fabricated Plate Connection Connection Swaged from Pipe Connection Flanged Connection Fabricated Reducer Concentric from Plate Flanged Connection Swaged from Pipe Flanged Screwed Connection and Connection Socket Weld Reducer Eccentric Reducer eccentric Buttweld Fabricated from Plate and um O a Reducer Eccentric ER Swaged from Pipe 13 PDMS Component Connection Points Component in Keyword used Description checkSTRESS in Neutral File Reducer Eccentric with a Connection Butt Weld Connection Fabricated from Plate Connection Swaged from Pipe Connection Flanged Connection fabricated from Plate Flanged and Connection Swaged from Pipe Flanged Eccentric Screwed Flanged g Reducer Eccentric Fabricated from Plate Flanged and Swaged from Pipe Flanged Trap In Line Trap Angle Union Screwed Socket Weld Rigid Element _ TEE or OLET Olet Half Coupling Nipolet Screwed Plain Ended Pipe s with Branch SIF Sockolet Thredolet Weldolet Welding TEE or TU TW TF TO Tee Set on Set on Reinfor
3. attribute KPSUPCODE to transfer the support details to checkKSTRESS without reentering the values to the new attribute e Lastly if both the attributes are not available in PDMS then the program will read the support details from the STEXT attribute of ATTA and transfer the same to checkSTRESS This can be used in situations where the users do not have write access to Dictionary Database of PDMS to create the User Defined attribute Any of the attributes defined above should be set a value as given in the field 1 i e PdSupport of the access db SupportType mdb when the user selects the option Use Mapping DB for transferring the support details to checkSTRESS Otherwise the attribute should be filled with values as specified in Appendix E of checkSTRESS User s Manual supplied along with the product For details on transferring supports Without Using Mapping DB refer to Appendix D of checkSTRESS Users Manual checkSTRESS pdf In addition to the above user can also add modify supports in piping system in checkSTRESS directly through Edit Layout gt Misc gt Data Types Material Material description entered at XTEXT attribute of SMTE is extracted from the Paragon Database and the material property is then obtained from the intermediate mapping db For more details refer Appendix B of checkSTRESS Users Manual supplied along with the product User can add modify the Material properties in chec
4. below in checkSTRESSPDMS PDMS Component Connection Points Component in Keyword used Description checkSTRESS in Neutral File Cap compression Rigid Element Cap Socket Weld Rigid Element Closure Pipe Block Pipe Block Variable Length Rigid Element Coupling Cap Rigid Element Nipple Screwed Coupling Compression Coupling Screwed Coupling Socket Reducer Concentric weld Butt weld Elbolet Socket Weld Elbolet Screwed Elbolet Cross Butt Weld Socket Weld 3 Four Pipes with Branch Compression Flanged i CR SIF Welding TEE Screwed 11 PDMS Component Connection Points Component in Keyword used Description checkSTRESS in Neutral File Four Pipes with Branch set on Set on Reinforced SIF Welding TEE Rigid Element or Pipe Flange Blind with Flange Rigid Element or Pipe Flange Reducing Concentric with Flange Flange Reducing Eccentric Fixed Length Tube Fixed length Pipe with Flanged ends and without Flanged ends Lap Joint and Stub End Rigid Element or Pipe Lap Joint Ring Loose with Flange Rigid Element or Pipe Lap Joint Stub End Loose with Flange Block Angle Expansion Bellows Flame Trap Flexible Hose Hose Coupling Non Category item PDMS Component Connection Points Component in Keyword used Description checkSTRESS in Neutral File Restrictor Plate Tundish I Sight Glass Slip
5. dialog box as shown above Using the option Print designers can print the model data code compliance for ten 10 high stress nodes Nozzle Anchor Qualification and Status of Resting Support Limit Stops Mode shapes reports using the option Show Modes are available only for checkSTRESS Nuke product Limitations The following are not transferred to checkSTRESS from PDMS at this time However user can add these in checkSTRESS through Edit Layout gt Misc gt Section 1 Corrosion allowance and Mill tolerance 2 Lining Density and Lining Thickness Reference Loads Temperature and Pressure values entered at Pipe Branch level via TEMP and PRES attribute shall be transferred to checkSTRESS Hence user should fill these attributes with appropriate values depending upon the Units of transfer l e If you wish to transfer the model in SI units then the value entered for Temperature and Pressure should be in Deg C and kg cm2 respectively On the other hand if you wish to transfer the model in English Units then the Temperature and Pressure values shall be entered in Deg F and psi respectively User can also add modify the Temperature and Pressure values in checkSTRESS through Edit Layout gt Misc gt Loads Fluid Density Even though the provision is available in PDMS Propcon Database to enter the Fluid density most of the users do not use such facility Hence provision is given to specify the Specific Gravity of the
6. fluid with respect to water during the transfer of the model Weight The weights of Valves Instruments Flanges etc are extracted from the Propcon Database through the Cweight attribute If defined available in the Propcon Database the program extracts the information and transfer to checkSTRESS Care should be taken while filling the Cweight attribute in Propcon i e the values should be specified in Kg lb to transfer the same in SI English units respectively User can add modify the weight of components by selecting the component type such as Valve Rigid Flange etc through Edit Layout gt Window gt List Wall Thickness Since the Wall thickness of the Piping components is generally not available in PDMS they are set to 0 0 by default However user can transfer the Wall Thickness information to checkSTRESS properly from PDMS if they are specified by modifying the variables defined in the program Refer Appendix A for details on modifying the program to extract Wall Thickness from PDMS User can also specify wall thickness of piping components through Mapping DB Code mdb supplied along with the project For details refer to Appendix C of checkSTRESS User s Manual checkSTRESS pdf In addition to the above options user can also modify the Wall thickness of the piping components directly in checkSTRESS through Edit Layout gt Misc gt Section OD and Nominal Size OD and Nominal Size are extracted
7. Check for the selected ZONE PIPE BRANCH e User can also use the button CE Members to include all the members of SITE ZONE PIPE and then exclude a few members using the Remove button if required For example if you wish to add 8 PIPES out of 10 PIPES under a particular ZONE navigate to the ZONE and press the button CE Members Highlight the PIPE one at a time in the included list and press the button Remove to exclude them e Choose the Global Vertical Axis for checkSTRESS model from the vertical Axis option By default Z Axis shall be taken as Global Vertical Axis if not specified Note Since PDMS always uses vertical global axis as Z and Stress Engineers from different parts of the world use different coordinate systems it is recommended that the designers should consult with the stress department and choose the Vertical Global Axis before saving the stress model in CAEPIPE CAESAR Il format for Stress department to carry out the detailed analysis On the other hand for performing the first level stress check using checkSTRESS designers shall continue to use Z as Global Vertical Axis e Press the button Apply to perform the Stress Check checkSTRESS SE SA e aveva pdms11 E B ia x File View Options Window Help tess Hane Code B31 1 2014 f Espansion Stress tH Expansion stress i C Sustained Stress weight Pressure m Show f Expansion Deflected
8. Shape f Sustained Deflected Shape f Operating Deflected Shape C Undeformed Shape Status of Resting Support Limit Stops Nozele Anchor Qualification r Hanger Report f Show Summary f Show Hanger Report Save s C CAEPIPE 7 28 mod C PIPESTRESS Input file Show Modes Print Edit Layout 10 11 12 Figure above shows the stress contour plot for the Expansion case Sustained Stress plot can be seen by selecting the option Sustained Stress Weight Pressure as shown in the figure right above Designers can also plot and view the deflected shapes of the piping system under different loading conditions using the options available in the heading titled Deflected Shape as shown in the figure on the right above Designers can review the Nozzle Anchor Qualification using the Option Show Summary Hanger selected by checkSTRESS for to be designed hangers can be viewed by selecting the option Show Hanger Report Designers can generate the CAEPIPE mod file using the option CAEPIPE 7 2x mod for the Stress Department to carry out the detailed analysis including stress report preparation Similarly in order for the Stress Department to carry out the detailed analysis including stress report preparation designers can generate CAESAR Il input files in checkSTRESS Il product and PIPESTRESS input files in checkSTRESS Nuke product respectively by selecting the appropriate option from the
9. ced Weldolet and Tee Pulled 14 PDMS Component Connection Points Component in Keyword used Description checkSTRESS in Neutral File Pipe s with Branch SIF Olet Latrolet Butt Weld Welding TEE or TU TW TF TO Screwed amp Socket Weld Weldolet Olet Instrument Flanged Tee Butt Weld Compression Flanged Screwed Socket Pipe s with Branch SIF Weld Swept Branch Butt Weld Welding TEE or TU TW TF TO Swept Branch Flanged Swept i Weldolet Branch Compression and Swept Branch Socket Weld Valve Angle Pressure a3 Reducing Relief Vent VA Valve Ball Basic Butterfly Cock Diaphragm Gate Globe VA Needle Plug Pressure Reducing Relief Vent and Slide A Valve Check Rupture Disk Rigid Element Four Rigid Elements or Valve 4 Way o Four Pipes with 4W Concentrated Mass 15 PDMS Component Connection Points Component in Keyword used Description checkSTRESS in Neutral File Three Way Valve Three Rigid Elements or Valve 3 Way i i Three Pipes with Concentrated Mass INSTRUMENT Instrument Orifice Plate Restrictor Plate and Rupture 0 Rigid Element Disk Instrument Angle Rigid Element Instrument Dial and Dial 3 E s Rigid Element Flanged i Valve Angle Relief Vent Angle Pressure Reducing Angle Control Angle Control 03 _ Rigid Element Square Indicator Angle Control 2 Motorised Indicator Angle Control Hand Indicator
10. checkSTRESS for AVEVA s PDMS Introduction Under the checkSTRESS brand name three products are available namely checkSTRESS which generates only CAEPIPE input file checkSTRESS II which generates input files for both CAEPIPE and CAESAR II and checkSTRESS Nuke which generates input files for both CAEPIPE and PIPESTRESS The following table lists the checkSTRESS products currently available for different 3D Plant Design te Sorensen Paatone soe PDS Available PDS Available PDS Available PCF Available PCF Available PCF Available This document describes the common features of checkSTRESS product s currently available for PDMS Details related to the generation of CAESAR II input files by checkSTRESS II and PIPESTRESS input files by checkSTRESS Nuke are covered in a separate document titled CllModel pdf and PSModel pdf respectively systems Installing Program J To install checkSTRESS for PDMS on Windows OS load the product CD supplied and execute the followings steps Browse the CD and run the program Setup exe and follow the instructions as they appear on the screen Add the path of the installed directory to the pmllib path of the PDMS For example SET PMLLIB C Progra 1 SST_Systems checkSTRESSPDMS 1 pmllib assuming checkSTRESS is installed in the directory C Program Files SST_Systems checkSTRESSPDMS Note For the program to work properly avoid using space or special character
11. dified to read the value from Design Parameter For example if the Wall Thickness is specified in Design Parameter 3 modify the lines as follows IThis WallThickness 1 DbRef spref Desparam 3 String IThis WallThickness 2 DbRef spref Desparam 3 String User Defined Attributes UDA at Specification component If User Defined Attribute is used to specify the Wall thickness of the piping component at SPCO level modify the variable listed below to read the value from UDA For example if the Wall Thickness is specified in the variable WallThickness of SPCO element modify the lines as follows This WallThickness 1 DoRef Spref WallThickness string This WallThickness 2 DoRef Spref WallThickness string User Defined Attributes UDA at Piping Component lf User Defined Attribute is used to specify the Wall thickness at piping component modify the variable listed below to read the value from UDA For example if the Wall Thickness is specified in the variable WallThickness of piping element modify the lines as follows This WallThickness 1 DbRef WallThickness string IThis WallThickness 2 DobRef WallThickness string 19
12. e PdSupport of the access db SupportT ype mdb 4 To use checkSTRESS for PDMS type show checkSTRESS on the command line of PDMS Design Module The following form appears checkS TRESS amI File Mame 4PDMSuy Ks Tempo Input Units used in Project while entering Analysis Code B31 Al Transfer Model in SI Units af Specie Gravity il Starting Mode number 0 Mode Humber Increment j H Process elements if diais gt oo mm identify Support ATTAs with ATTYPE SUPP Vertical Axis Transfer Sway and 4ivay valve as Y Direction Rigid Elements Z Direction Pipes with Concentrated Wass Transfer Supports Transfer Flange as Using MDB Pipe with Flange without Using MDB Rigid Element Boundary Condition O Anchor Ends if connected to Mozzle Anchor all Free ends WwORL SITE STABILIZER OME PIPES CE Members Add CE FIFE 100 B 1 BRAM gt 100 6 1 61 DASK 1 Remove Remove Il e Specify Change the Name of the file if you wish Do not leave a blank space while giving the file name path Program checks and generates error if finds a space in the file name path W 7J 19 Select the Input units used in Project while entering Pressure Temperatures and Weight using the options as shown in the figure above Please note selecting wrong input units used in project will results in incorrect output Select the piping code to be u
13. e Filter Strainer Angle Rigid Element Flange Blind Flared Loose Backing Flange Backing Rigid Eidmentor Pine Flange Reducing Concentric Screwed Slip On Slip On with J Type Weld Socket Weld and Weld Neck with Flange Orifice Slip On Flange and Rigid Element with Orifice Weld Neck Tapping 18 Appendix A Specifying Wall Thickness This section explains how to extract the wall thickness for PDMS piping components To specify the wall thickness for piping components like Pipe Olet Tee Elbow Reducer and Cross navigate to checkSTRESS installed path and locate the folder Setup Navigate to the folder Objects and then open the corresponding pml object files in which the thickness needs to be specified Locate the variables This WallThickness 1 and This WallThickness 2 in the file and modify the values to suit the project requirement By default these variables are assigned to 0 00 Catalogue Parameter If wall thickness is defined using Catalogue Parameter of SCOM in PDMS then the variable can be modified to read the value from Catalogue Parameter For example if the Wall Thickness is specified in Catalogue Parameter 3 modify the lines as follows IThis WallThickness 1 DbRef catref Param 3 String This WallThickness 2 DbRef catref Param 3 String Design Parameter If Design Parameter DESPARAM is used to specify the Wall Thickness then the variable can be mo
14. from the Paragon Database of PDMS For reducers the arrive OD and Thickness shall be transferred to OD1 and Thk1 of the element in checkSTRESS and the leave OD and Thickness shall be transferred as OD2 and Thk2 of the element in checkSTRESS User can also modify the OD and Nominal size of the piping components directly in checkSTRESS through Edit Layout gt Misc gt Section Boundary Conditions selecting the option Anchor end if connected to Nozzle or Pipelines will Anchor the Pipe Ends only when they are connected to a Nozzle or Pipelines otherwise it leaves them as Free On the other hand if one end of the pipe is connected to a Nozzle and the other end of Pipe is connected to a Branch and if that Branch is not included as the part of the Stress model then the program will anchor both the end automatically For more clarity consider the following examples If one end of the pipe is connected to a Pump Nozzle and the other end is not connected to any Nozzle or Pipeline then the program will anchor the first end and leave the other end as free i e do not create any support On the other hand if one end of the pipe is connected to a Nozzle and the other end is connected to a Branch and that Branch is not included in the Stress model then the program will anchor both the ends automatically Similarly selecting the option Anchor all Free Ends will Anchor all the ends of the Branches automatically irrespective of whether they a
15. he format FX FY FZ MX MY and MZ These values should be separated using Please note the force values should be entered in Ib for English units and in N for SI units Similarly the moment values should be entered in ft lb for English units and in Nm for SI units If the Equipment Nozzle to which the Piping Layout is Connecting To is not modeled in PDMS then these Equipment Nozzle Allowable Loads can be entered at UDA HNAL or TNAL at PDMS Branch corresponding to Head or Tail of the Pipe run In other words Allowable Loads at starting of the Pipe run should be entered at HNAL of PDMS Branch On the other hand Allowable Loads at the end of the Pipe run should be entered at TNAL of PDMS Branch Example For Nozzle enter the values of FX FY FZ MX MY and MZ as NAL 3000 3000 6000 500 500 2000 For PDMS Branch Head enter the values of FX FY FZ MX MY and MZ as HNAL 3000 3000 6000 500 500 2000 and For PDMS Branch Tail enter the values of FX FY FZ MX MY and MZ as HNAL 3000 3000 6000 500 500 2000 The allowables thus defined are compared against calculated loads and shown printed in Support Load Summary outputs can be viewed printed through Show Summary option If the calculated loads exceed the allowables they are highlighted in red 10 PDMS to checkSTRESS component Mapping The types of components available in PDMS are simulated as tabulated
16. kSTRESS through Edit Layout gt Misc gt Materials Thermal Anchor Movement TAM Thermal Anchor Movement TAM values entered at UDA NX NY and NZ in global X Y and Z directions respectively at Equipment Nozzle where the piping layout selected for transfer is connecting to These values are then transferred to checkSTRESS TAM values should be defined in mm for PDMS projects in SI units and in Inch for PDMS project in English units If the Equipment Nozzle to which the Piping Layout is connecting to is not modeled in PDMS then these TAM values can be entered at UDA HNX HNY and HNX or TNX TNY and TNZ at PDMS Branch corresponding to Head or Tail of pipe run In other words TAM at starting of the Pipe run should be entered at HNX HNY and HNZ of PDMS Branch On the other hand TAM at the end of the Pipe run should be entered at TNX TNY and TNZ of PDMS Branch User can also add modify the Thermal Anchor Movement values through Edit Layout option i e Click Edit Layout then select Anchor and select Edit data through Layout gt Edit From the dialog box shown click on Specified Displacement and enter the TAM values User defined Equipment Nozzle Allowable Loads Equipment Nozzle Allowable Loads forces and moments provided by the equipment manufacturer or calculated using Applicable codes Finite Element Methods can be entered at UDA NAL in global X Y and Z directions at Equipment Nozzle in t
17. re connected to Nozzle or Pipelines In addition to the above user can also add modify supports in piping system in checkSTRESS directly through Edit Layout gt Misc gt Data Types Supports Supports locations and its information are included for transfer from PDMS when the following conditions are met Step 1 Include Exclude ATTA s for Transfer Define ATTA and fill the attribute ATTYPE with an appropriate Keyword Use the same Keyword in the text box Identify Support ATTA s with ATTYPE attribute set_as as shown in figure above Mismatching of Keywords will exclude the ATTA s from transfer or fill the attribute ATTYPE with an appropriate Keyword and leave the text box Identify Support ATTA s with ATTYPE attribute set as empty unfilled to include all ATTA s for Transfer Step 2 Transfer Support Details The program performs the following for transferring the support details to checkSTRESS e Checks for user defined attribute UDA SUPCODE If available then reads the details of support from this attribute and write them to the neutral file e If not available then checks for user defined attribute KPSUPCODE If available then read the details from this attribute and transfer to checkSTRESS Please note this feature is included for users who had used older versions of checkSTRESS i e User who had used the older version of checkSTRESS can continue to use the same user defined
18. s while entering the path or file name Define an environmental variable with name as checkSTRESS_ PDMS and the value as checkSTRESS Installation path For example set the value as C Progra 1 SST_Systems checkSTRESSPDMS assuming that the product is installed in the directory C ProgramFiles SST_Systems checkSTRESSPDMS The environment variables required by PDMS are also required for checkSTRESSPDMS The PDMS environment must exist as outlined in the appropriate PDMS Installation Guide Load PDMS and enter the Lexicon Module as a user who has Read Write access to DICT Database and run the datal file checkSTRESS DAT to create the UDA SUPCODE for ATTA elements UDA NX NY NZ and NAL for Nozzle elements UDA HNX HNY HNZ TNX TNY TNZ HNAL and TNAL for Branch elements How to use checkSTRESS J Add the ZONE PIPES BRANCHES need to be checked for stress using Add CE or CE Members button Branches selected for transfer need to be checked for the following e TEMP PRES attributes of the BRAN element e Each branch should have a valid PH OD e Each branch in the network should have a valid HSTU e Each branch should have a component e It is recommended to perform DATA CONSISTENCY CHECK for all Pipes Branches selected for transfer For transferring the support details ATTA s have to be created at support locations and the UDA SUPCODE should be set a value as given in the field 1 i
19. sed for the analysis of the model from the list box Enter modify the Static Seismic g s Available only for checkSTRESS Nuke Enter the Starting Node number and Node increment value in the appropriate field By default the Starting Node number and Node increment are set to 10 and 10 respectively Enter the Specific Gravity of operating fluid with respect to water By default the specific gravity is set to 1 0 Select Default Hanger to be used in checkSTRESS model This Hanger type will be used only when the hanger type in checkSTRESS corresponding to Plant Design hanger is not specified available in the Mapping DB For details on transferring support from Plant Design to checkSTRESS refer Appendix D of checkSTRESS User s manual checkSTRESS pdf When the Identify Support ATTA s with ATTYPE attribute set as is entered with a Keyword then it will transfer support locations and its information from PDMS only when the attribute ATTYPE is filled with the string that matches the Keyword entered in the form On the other hand leaving this text box empty unfilled will transfer all the ATTA from the PDMS for the selected Pipes Branches without checking its ATTYPE attribute For example if the Keyword is specified as SUPP then the program will include ATTA s for transfer only when the ATTYPE attribute is filled with the same Keyword SUPP otherwise it excludes them from transfer Select the units to be u
20. sed for the checkSTRESS model Selecting the option SI Units transfers the Pipes Branches details in SI units i e Length related dimensions such as OD Nominal Size etc in mm Temperature in Deg C Pressure in bar Weight in Kg Density in Kg m8 Translational Stiffness in N mm Rotational stiffness in N m deg to the neutral file Similarly Selecting the option ENGLISH Units transfers Pipes Branches details in ENGLISH units i e Length related dimensions such as OD Nominal Size etc in Inch Temperature in Deg F Pressure in psi Weight in lb Density in lb in3 Translational Stiffness in lb in Rotational Stiffness in lb in deg to the neutral file Select the Boundary Conditions to be used from the form shown above Refer the section titled Reference for details lf the user wishes to eliminate those elements whose Nominal size NS is less than 50mm 2in then they can specify the value as 50 for SI Units and 2 for English Units in the field Process elements if dia gt In other words the program will process only those elements whose nominal size is greater than the value specified in the field above e Specify how the 3 Way and 4 Way Valves to be transferred to checkSTRESS Refer the section titled Reference for details e Navigate to the required ZONE PIPE BRANCH through the member list as shown in the figure above e Press the button Add CE to include and to perform the Stress

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