CATIA裝配有限元分析training

COPYRIGHTDASSAULTSYSTEMES20021GenerativePartStructuralAnalysisCATIATrainingFoilsVersion5Release9

June2002EDU-CAT-E-GPS-FF-V5R9COPYRIGHTDASSAULTSYSTEMES20022ObjectivesofthecourseInthiscourseyouwilllearnhowtoperformStaticandModalAnalyses(createanalysisdocuments,computeandvisualize)onasinglePart.TargetedaudienceCATIAV5Users

Prerequisites MechanicalDesign FundamentalsinCATIAV5GenerativePartStructuralAnalysis1.5daysCOPYRIGHTDASSAULTSYSTEMES20023TableofContents(1/2)IntroductiontoGPSAnalysis p.5 1.1.AccessingtheWorkbench p.6 1.2.UserInterface p.7 1.3.UserSettings p.10StaticAnalysisPre-Processing p.14

2.1.CreatinganewAnalysisDocument p.16 2.2.SavingAnalysisDocuments p.19 2.3.Mesh-partsmanagement p.22 2.4.DefineRestraints p.26 2.5.DefineLoads p.30 2.6.AdvancedPre-ProcessingTools p.36 2.7.Beamelements p.40 ResultsComputationofaStaticAnalysis p.43

3.1.SpecifyingExternalStorage p.44 3.2.Computing p.49StaticResultsVisualizationandRefinement p.53

4.1.ImageCreation p.54 4.2.ImagesLayout p.60 4.3.ResultsManagement p.61 4.4.OtherCapabilities p.67 4.5.HistoricofComputation p.69 4.6.ParabolicElementType p.70 4.7.GlobalandLocalMeshRefinement p.71 4.8.MeshAdaptativity p.73 4.9.KnowledgewareforAnalysis p.77COPYRIGHTDASSAULTSYSTEMES20024TableofContents(2/2)VirtualPart p.83 5.1.TheVariousTransmissionTypesList p.84 5.2.ExamplesShowingVariousTransmissionTypes p.85 5.3.ExampleofRigidSpringVirtualpartsuse p.86 5.4.ApplyingActionstoVirtualParts p.87 5.5.VirtualPartssharingasinglehandlerpoint p.89DynamicPre-ProcessingandComputation p.90 6.1.CreatingAdditionalMassEquipment p.92 6.2.UnrestrainedorRestrainedPart p.94 6.3.ComputingtheAnalysis p.96DynamicsResultsVisualization p.98 7.1.ImageCreation p.99 7.2.ResultsManagement p.102ElementstestswithELFINIsolver p.104

8.1.TE4andTE10comparison p.105 8.2.StaticAnalysis p.106 8.2.FrequencyAnalysis p.107 8.3.BucklingAnalysis p.108FrequentlyAskedQuestions p.109COPYRIGHTDASSAULTSYSTEMES20025Inthislesson,youwilllearnabouttheGenerativePartStructuralAnalysisWorkbenchby:AccessingTheWorkbenchUserInterfaceUserSettings1.IntroductiontoGPSAnalysisCOPYRIGHTDASSAULTSYSTEMES200261.1.AccessingtheWorkbenchInthislesson,youwilllearnabouttheGenerativePartStructuralAnalysisWorkbench.BesurethatthePartbeingstudiedhasamaterialapplied.ThisactioncanonlybeperformedinthePartDesignWorkbench3-ModalorStaticAnalysis.AnewCATAnalysisdocumentiscreated.2-Analysis&Simulation1-StartCOPYRIGHTDASSAULTSYSTEMES200271.2.UserInterface-ToolbarsRestraintsExternalStorageManagementAnalysisreportingLoadsModelManagerComputeImagesVirtualpartsManagerandmassCOPYRIGHTDASSAULTSYSTEMES20028UserInterface-IconsImageCreationDeformationStressVonMisesDisplacementRestraintsApplicationClampMechanicalRestraintAdvancedRestraintResultsVisualizationAnimateCutPlaneAnalysisDeformationScaleFactorSearchImageExtremaInformationsImageLayoutComputationComputeLoadsApplicationPressureForceAccelerationForceDensityEnforcedDisplacementTemperaturefieldMassEquipmentMassAnalysisResultsBasicAnalysisReportHistoricOfComputationsListingSolverToolsStorageLocationClearStorageTemporaryDataDirectoryModelmanagerTetrahedron,Octreeand

BeammeshingElementtypeandlocalmeshSolidpropertyShellpropertyBeampropertyModelCheckVirtualpartsmanagerVirtualpartsPeriodicityconditionsNew!New!New!COPYRIGHTDASSAULTSYSTEMES20029AnalysisTreeAssociatedGenerativePartPre-ProcessingInputImagesofResultsUserInterface-SpecificationTreeMeshpartsPropertiesExternalStorageMeshpartsSpecificationsCOPYRIGHTDASSAULTSYSTEMES200210Thisenablesyoutofasteraccesstheanalysisworkbench.1.3.UserSettings-ShortcutOfAnalysisIcon2-Transfer“GenerativeStructuralAnalysis”fromAvailabletoFavorites1-Select“Customize…”fromToolsmenu3-AccessAnalysisWorkbenchthroughthisiconCOPYRIGHTDASSAULTSYSTEMES200211InPartDesignWorkbench,customizeRenderStylebyaddingmaterialvisualization.Thiswillalsoenableyoutoviewanalysisimagesinaverage-isovisualizationmode.WewillactivateMaterialssothatmaterialrenderstylesaredisplayedUserSettings-CustomizingViewModes2-Clickon“ApplyCustomizedView”3-Activate“Materials”andclickOK.1-SelectRenderStylefromtheViewmenuCOPYRIGHTDASSAULTSYSTEMES200212Thisenhancesthevisualizationofselectedfaces.UserSettings-HighlightingFacesandEdges1-Select“Options…”fromtheToolsmenu2-Click“Display”3-Click“Navigation”4-Activate

“Highlightfacesandedges”COPYRIGHTDASSAULTSYSTEMES200213UserSettings-Show/NoShowVisualization1-Select“Options…”fromthe“Tools”menu3-Click“Tree”2-Click“Display”4-ActivateVisualizationofShow/NoShowCOPYRIGHTDASSAULTSYSTEMES200214Inthislesson,youwilllearnhowtocreateanewAnalysisDocument,howtosaveitandhowtodefineRestraintsandLoadsonaPart.CreateaNewAnalysisDocumentSaveAnalysisDocumentsDefineRestraintsDefineLoadsAdvancedPre-ProcessingTools2.StaticAnalysisPre-ProcessingCOPYRIGHTDASSAULTSYSTEMES200215GeneralProcessforaStaticAnalysisEnsurethatparthasmaterialdefinedthenOpenStaticAnalysisWorkbenchApplyRestraintstothemodelApplyLoadstothemodelAnalyzetheResultsRefinetheAnalysisPerformComputationCreateImagesCOPYRIGHTDASSAULTSYSTEMES200216AMaterialmustbeappliedtothestudiedPart.ThiscanonlybepeformedinthePartDesignWorkbench.1-ClickontheMaterialicon2-SelectaMaterial4-Apply2.1.DocumentCreation-AssigningMaterials5-Check3-SelectaPart(onthegeometryorinthetree)COPYRIGHTDASSAULTSYSTEMES200217NewAnalysisDocuments,entitledCATAnalysisfiles,canbecreatedinvariousways.Thereare3waystocreateanewAnalysisDocument:DocumentCreation-ThreeWaysWorkbenchIconFilemenuStartmenuCOPYRIGHTDASSAULTSYSTEMES200218HereishowtocreateanewAnalysisDocumentusingtheStartmenu.DocumentCreation-UsingStartMenu1-Click“Start”2-Click“GenerativeStructuralAnalysis”3-SelectStaticorFrequencyAnalysisCOPYRIGHTDASSAULTSYSTEMES200219TherearevariouswaystosaveanAnalysisDocumentanditsparentdocuments.Itisimportanttoachievethiscorrectlywithanassemblyanalysisdocument,fortheassemblyhastobeproperlylinkedwithallthepartsitismadefrom.Onlythosedocumentsthathavebeenmodifiedwillbesavedorproposedforthesaving.2.2.SavinganAnalysisDocumentSavewillsavetheactiveAnalysisDocumentSaveAs...issimilartoSave,butitallowsyoutospecifythenameandfolderfortheactiveAnalysisDocumentSaveAllwillproposesavingallopendocumentsandchildrenofthesedocumentsCOPYRIGHTDASSAULTSYSTEMES200220SaveManagement…isaneasywaytosaveallmodifieddocumentsunderuser-specifiednames.Allmodifiedopendocumentswillbeproposedforsaving,regardlessofwhichdocumentisactiveDocumentSaving-UnderSpecifiedNames1-Select“SaveManagement…”2-SpecifywhichdocumentstobesavedCOPYRIGHTDASSAULTSYSTEMES200221“SendTo”isaneasywaytosavealllinkeddocumentsinauserspecifieddirectory.AvailablefilesFilesthatwillbesavedDocumentSaving-“SendTo”MechanismUsethisoptionifyouwantthedirectorystructureoftheselectedfileslisttobeduplicated.Elsetheselectedfileswillbecopieddirectlyunderthetargetdirectory.1-Select“SendTo”&“Directory”2-Usethesearrowstoswitchselectedfilesbetween“Canbecopied”and“Willbecopied”4-Selectthetargetdirectory3-Clickheretomodifytheselectedtargetname2-Usethesesarrowstoswitchallthefilesbetween“Canbecopied”and“Willbecopied”COPYRIGHTDASSAULTSYSTEMES2002222.3.Mesh-partsmanagement–Meshcreation&destructionNewR9Tocreateormodifymesh-parts,clickontheappropriatemesh-parttoolbariconOctreetetrahedronmeshforsolidgeometry1.Selectthemeshpartinthetree.2.Contextualmenu,andDelete.OctreetrianglemeshforsurfacemeshBeammeshingforwire-framegeometryWecanalsodeleteameshpartcreatedfromanautomaticmesherorFMS1.Selectthegeometrytomesh.2.Selectthecorrespondingmeshtype.3.EntermeshspecificationsCOPYRIGHTDASSAULTSYSTEMES200223Mesh-partsmanagement–PropertiesmanagementNewR91.Selecttheappropriatepropertytype.2.Selectthepartgeometryentity(PartBodyorOpenBody)inthetree.3.Enterpropertyspecificationsasthecasemaybe.Ameshpartmusthaveonlyonesingleproperty.Asformeshparts,wecanalsodeleteproperties.Oncethemeshpartiscreated,wehavetodefineitspropertyCOPYRIGHTDASSAULTSYSTEMES200224Mesh-partsmanagement–ModelCheckcommandNewR9TheModelCheckcommandcanhelptheuserunderstandingtheDesign-Analysislinks.Thankstothelistofallthemeshpartsandproperties.Highlightsthecorrespondingfeatures.Justbeforecompute,wecanchecktheconsistencyoftheFEMmodel:Missingproperties.Missingmaterial.Missingsupport.Diagnosticproblems.AftermodificationsDiagnostic:CheckforPropertyandMaterialmissingandredundance.COPYRIGHTDASSAULTSYSTEMES200225Mesh-partsmanagement–AnalyzeofpartsmadeofseveralbodiesNewR9WecananalyzepartswhichhaveseveralGSDbodiesEachbodyhasitsownmaterial.Severalmeshpartswillbecreated(oneforeachbody).Then,wecanapplydifferentthicknessesforeachmeshpart.SeveralbodiesSeveralmeshpartsCOPYRIGHTDASSAULTSYSTEMES200226Clampsarerestraintsappliedtosurfaceorcurvegeometries,onwhichallnodesaretobeblockedinthesubsequentanalysis.2.4.DefineRestraints-Clamps1-Clickonthe“Clamp”Iconinthe“Restrain”Toolbar2-Selectthegeometrysupport(s)(SurfacesorEdges).3-Click“OK”Symbolsassociatedtoanulltranslationinalldirectionsoftheselectedgeometryaredisplayed.AClampobjectappearsintheSpecificationTreeundertheactiveRestraintsobjectsset.Anyselectablegeometryishighlightedwhenyoudragthecursoroverit.COPYRIGHTDASSAULTSYSTEMES200227Surfaceslider(3Tr.&1Rot.),Slider(1Tr.),Slidingpivot(1Tr.&1Rot.),Balljoint(3Rot.)andPivot(1Rot.).SurfaceslidercanbedirectlyappliedonsurfaceswhereasotherRestraintsmustbeappliedonavirtualpart(See5.4.)1-ClickonSurfaceSliderIconSymbolsonGeometryFeaturesTreeDefineRestraints-MechanicalRestraints2-SelecttheGeometrySupport(s)(Surfaces)3-Click“OK”COPYRIGHTDASSAULTSYSTEMES200228AdvancedRestraintsaregenericrestraintsallowingyoutofixanycombinationofavailablenodaldegreesoffreedom(dof)onarbitrarygeometries.2-SelectaxistypeDefineRestraints-AdvancedRestraints1-Selectthesupport(s)(SurfacesorEdges)3-ActivatedegreestobefixedTherotationdegreesarerelevantonlyforstructuralelementmeshes(i.e.shellelements),orVirtualParts.COPYRIGHTDASSAULTSYSTEMES200229Iso-staticRestraintsareStaticallyDefiniteRestraintsallowingyoutosimplysupportaBody.DefineRestraints-Iso-staticRestraints1-Clickonthe“iso-staticrestraints”Icon2-Selectageometry3-ClickOKCOPYRIGHTDASSAULTSYSTEMES200230Pressuresareintensiveloadsrepresentinguniformscalarpressurefieldsappliedtosurfacegeometries,hencetheforcedirectioniseverywherenormaltothesurface.1-Clickonthe“Pressure”IconSymbolsrepresentingthePressureLoadsaredisplayed.ALoadsobjectappearsintheFeaturesTreeundertheactiveLoadsobjectsset.2.5.DefineLoads-PressureLoads2-Selectthegeometrysupport(s)

(Surfaces).Anyselectablegeometryishighlightedwhenyoudragthecursoroverit.4-Click“OK”3-SpecifyapressurevalueorOpenaDataFileformappingCOPYRIGHTDASSAULTSYSTEMES200231DistributedForces(Moments)areforcesystemsstaticallyequivalenttoagivenpureforce(couple)resultantatagivenpoint,distributedonavirtualpartoronageometricselection.DefineLoads-DistributedForcesandMoments1-Selectsupport(s)

(SurfacesorEdges)2-Selectaxistype3-SpecifyforceCOPYRIGHTDASSAULTSYSTEMES200232Accelerationsareintensiveloadsrepresentingmassbodyforce(acceleration)fieldsofuniformmagnitudeappliedtoparts.DefineLoads-Acceleration(GravityBodyForces)1-Selectsupport(s)

(SurfacesorEdges)2-Selectaxistype3-SpecifyvectorCOPYRIGHTDASSAULTSYSTEMES200233RotationForcesareintensiveloadsrepresentingmassbodyforce(acceleration)fieldsinducedbyrotationalmotionappliedtoparts.DefineLoads-RotationForces1-Selectsupport(s)

(SurfacesorEdges)2-Selectaxis3-Specifyangle

velocityandacceleration(ifnecessary)COPYRIGHTDASSAULTSYSTEMES200234ForceDensitiesareintensiveloadsrepresentingline(surface)tractionfieldsorvolumebodyforcefields,ofuniformmagnitude,appliedtoeithercurve(surface)geometries,ortoparts.DefineLoads-ForceDensities1-Selectsupport(s)2-Selectaxistype3-SpecifyvectorOrOpenadatafileformappinganexternalloadCOPYRIGHTDASSAULTSYSTEMES200235EnforcedDisplacementsareequivalentloadsappliedtosupportgeometries,resultingforthesubsequentanalysisinassigningnon-zerovaluestodisplacementsinpreviouslyrestraineddirections.AnEnforcedDisplacementobjectisbydefinitionassociatedtoaRestraintobject.DefineLoads-EnforcedDisplacements1-Selectrestraint2-EntervaluesforeachrestraineddofCOPYRIGHTDASSAULTSYSTEMES200236Insteadofspecifyingeachcomponentoftheforcevector,youcansimplydefinetheforcedirectionbyusingthecompass.Thiswillensurethattheforceisdefinedrelativelytothepart,whateveritspositioning.2.6.AdvancedPre-ProcessingTools-ForcewithCompass1-Clickontheloadsicon2-Selectsupportandspecifyforcevectornorm3-Dragthecompassbyhandlingtheredsquareanddropitontheappropriatesurface4-UseCompasstodefinevectordirectionCOPYRIGHTDASSAULTSYSTEMES200237Insteadofusingtheglobalaxissystem,youcanuseanimplicitoneifyouwantyourpre-processingtobedefinedwithrespecttothepart.YoucanalsospecifyauserdefinedaxissystemifyouhavecreatedoneinPartDesign.Inthatcase,thedofdirectionsofanadvancedrestraint,orthecomponentsofaforce,willbeprocessedwithrespecttothethespecifiedAxissystem.TheirinterpretationwillfurtherdependonyourAxisTypechoice.Therestrainrotationsareavailableonlywithsurfacicgeometry.AdvancedPre-ProcessingTools-AxisSystems1-Selectauserdefinedaxissystemtype3-Selectaxissystemlocalorientation4-Fixdof’s(inAdvancedRestraintcase)NB:Rotationsareavailablewithshells,butnotwithsolids.2-SelectanexistingaxissysteminthefeaturestreeCOPYRIGHTDASSAULTSYSTEMES200238New!AdvancedPre-ProcessingTools–Pre-processingonpointsWecanapplypre-processingspecificationsonpointsandvertexWecanapplyitforLoads,restraintsorMasses.Itisavailableondifferenttypesofsupport:VertexPointsfollowedbyFMSPointsfollowedbyOctreemesher1.CreateaGSDpoint2.Meshthepartwiththeconstrainedpoint3.ApplydistributedforceCOPYRIGHTDASSAULTSYSTEMES200239AdvancedPre-ProcessingTools–MasssetsMasssetscanbeincludedinastaticcase:Usedforloadingsbasedoninertiaeffect(acceleration,rotation).Takeintoaccountthemassmodelingcapabilitiesintheloaddefinition.1.InsertanewStaticCase2.SelectMasses:IfthereisalreadyaMasssetinthefirstStaticcase,youcanselectitasReference.IfthereisnoMassset,selectNew.NewR9COPYRIGHTDASSAULTSYSTEMES200240NewR92.7.Beamelements:wire-framemesherAssociativitywiththeGenerativeShapeDesignWorkbench.UseJOINcapabilitytobuildcomplexwire-framefeature.Anautomaticmeshpartgenerationismadeifanexternalviewhasbeendefined..Designyourwire-framestructureinGSD.UseJOINcommandifthereareseveralbeams.ApplymaterialontheJoinentitycreated.DoanexternalviewandgotoGPS,thenyouwillhavetochangedefaultmeshpropertiescreated.OrgodirectlytoGPSandclickonBeammesher.DoMeshVisualization(orcomputeMeshOnly).COPYRIGHTDASSAULTSYSTEMES200241NewR9Beamelements:BeampropertiesdefinitionApplyapropertyonasinglebeamoronaJoinfeatureSelecttheBeampropertyicon.Enterthebeamcaracteristics.AfterclickingOK,alocalaxissystemisdiplayedatthecentroid,showingthesectionorientation.Theorientationpointmustnotbecolinearwiththebeamaxis,evenifthesectionisaxisymetric!COPYRIGHTDASSAULTSYSTEMES200242NewR9Beamelements:Beampre-processingandstaticanalysisPre-processingonbeamelementsPutGSDpointsinNo-Showmode,soastokeepfromselectingthem(else:mesherrorsgeneration).Putaclamptooneofthevertex.Applyadistributedforcetotheothervertex.ComputeandPost-processingonbeamelementsWecandisplaydeformationanddisplacements(otherpost-processingoptionswithESTcapabilities).InGAS,wecanalsodohybridanalysiswithsolid-shell-wireframegeometry.COPYRIGHTDASSAULTSYSTEMES200243Inthislesson,youwilllearnhowtocomputeaStaticAnalysis.SpecifyingExternalStorageComputing3.ResultsComputationofaStaticAnalysisCOPYRIGHTDASSAULTSYSTEMES200244AllELFINISolvercomputationsaresystematicallystoredinastructuredwayoutofcorememory,onanexternalfilewhichpath’snameisExternalStorage.ThelinkbetweentheCATAnalysisdocumentandtheExternalStorageismaintainedaftertheendofasession,inawaysimilartothelinkbetweenaCATPartandtheassociatedCATAnalysisdocument.Itisrecommendedthatyoulocateyourexternalstoragewherethereissufficientspace.TherearetwosolutionstoModifythestoragepathwhichare:thetoolbarbuttonsorthespecificationtree.3.1.SpecifyingExternalStorage(1/5)1-Clickonthe‘Storage”iconintheSolverToolstoolbarThe“ElfiniStorageLocation”dialogboxisdisplayed3-SelectapathfortheExternalStoragedirectories4-ClickSave2-ClicktheModifybutton5-ClickOKCOPYRIGHTDASSAULTSYSTEMES200245SpecifyingExternalStorage(2/5)Theothermethodistousethetreespecifications.AdialogboxisdisplayedThenewpathappearsinthefeaturestree1-Doubleclickonthepathyouwanttomodify2-Selectanewpath3-ClickOKCOPYRIGHTDASSAULTSYSTEMES200246SpecifyingExternalStorage(3/5)Eachnewcomputationwillgeneratefiles.Anewfilewillreplacethecorrespondingoldone.Beforelaunchinganewcomputationyoumayclearthe“ComputationData”and/orthe“Results”ifyouwantittosupersedethepreviousone.Thefollowingdatastructureiscreatedintheexternalstoragedirectories:1-Clickthe“ClearStorage”icon2-SelecttheactionyouwantComputationfilesResultfilesCOPYRIGHTDASSAULTSYSTEMES200247Tocalculate,thecomputerneedsatemporarystoragelocationwhichiscleanedupwhentheassociatedanalysissessionisclosed.SpecifyingExternalStorage(4/5)Withthisoptionyoucanindicatethedatastoragelocation.1-Clickthisicon2-Click”Modify”toselectanewdirectory3-Selectanewpath4-5-ValidatewithOKCOPYRIGHTDASSAULTSYSTEMES200248SpecifyingExternalStorage(5/5)AnalysisstoragecreationCATAnalysisResultsandCATAnalysisComputationsfilesarecreated:ThefirsttimethecomputationislaunchedIftheuserexplicitlydefinetheirlocationAnanalysisdocumentwhichcontainsonlyspecificationscanbestoredwithoutlinkstoAnalysisstorage.Thesefilesarenotseenanymoreinpartnersapplicationsthatdoesnotneedthem.AnalysisstoragereadDataarecopiedonlywhencomputationorpost-processingneedtoaccessit.ThereisasignificanttimereductionofComputedAnalysisDocumentloading.Thereisnomoreuselessdatareading(ex:readacomputeddocument,modifythemesh,andre-computing).AnalysisstoragedeletionCATAnalysisResultsandCATAnalysisComputationscanbedeletedmanualy(equivalenttoClearcapability).NewR9COPYRIGHTDASSAULTSYSTEMES2002491-ClicktheComputeicon.3.2.Computing(1/4)OnceyouhavesuccessfullydefinedRestraintsandLoadsinyourStaticAnalysisCase,youcanundertaketheactualresultscomputationofthatcase.2-ActivatetheAll(default)option.Uponsuccessfulcompletionofthecomputationthestatusofallobjectsintheanalysisfeaturestreeischangedtovalid.TheComputedialogboxisdisplayed.Activate“Preview”ifyouwantanestimationofthecomputationtime.Aseriesofstatusmessages(Meshing,Factorization,Solution)informsyouabouttheprogressofthecomputingprocess.3-ClickOK(orYes)tolaunchthecomputation.COPYRIGHTDASSAULTSYSTEMES200250YoucaneditthedefaultvaluesoftheComputationparametersofaCaseSolutionasfollows:Computing(2/4)1-Double-clicktheSolutionobjectssetintheanalysisfeaturestreetodisplaytheComputationDefinitiondialogbox.Forthegradientmethodtwoadditionalparametersmustbespecified2-Activatethemethodyouwanttoapply.COPYRIGHTDASSAULTSYSTEMES200251Therearefourdifferentsolvingmethodsforastaticanalysis:Computing(3/4)1-Automethod:Oneofthethreemethodsbelowisautomaticallycomputed.2-Gaussmethod:Directmethod.3-Gradientmethod:SolvingiterativemethodwhichismemorysavingbutnotCPUtimesaving.4-GaussR6method:FastGaussmethod.Foranyanalysismethod.Recommendedforcomputingsmall/mediummodels.Recommendedforcomputinghugemodels.Twoadditionalparametersmustbespecified:maximumiterationnumberandaccuracyfactor.Recommendedforcomputinglargesizemodels(defaultmethod).COPYRIGHTDASSAULTSYSTEMES2002521-DuplicateCATIAInstallationicon.Computing(4/4)WhileCATIAcomputesyouranalysis,theinteractivemodeisnotavailable.So,youmaylaunchabatchwhichperformsthecomputation.4-Asaresult,whenyoulaunchthebatch,apanelappearsinwhichyouwillenterthenameofthefiletobeupdatedaswellasthenameofthemodeltobecomputed.2-Renametheduplicatedicon(forexample,CNextBatch).3-EdittheCNextBatchfileandattheendofthefile,replacestart“CNEXT.exe-env%GenericEnvName%“withthefollowing:start“CNEXT.exe-env%GenericEnvName%-batch-eCATAnalysisBatch”.COPYRIGHTDASSAULTSYSTEMES200253Inthislesson,youwilllearnaboutthePost-ProcessingcapabilitiesofGPSandaboutperformingaRefinedStaticAnalysis.ImageCreationImagesLayoutResultsManagementOtherCapabilitiesHistoricofComputationParabolicElementTypeGlobalandLocalMeshRefinementMeshAdaptativityKnowledgewareforAnalysis4.StaticResultsVisualizationandRefinementCOPYRIGHTDASSAULTSYSTEMES200254DeformedMeshimagesareusedtovisualizethefiniteelementmodelinitsdeflectedconfiguration,asaresultoftheenvironmentalaction(loading).4.1.ImageCreation-Deformations1-ClicktheDeformationicon.TheDeformedMeshimageisdisplayedandaDeformedMeshImageobjectappearsinthefeaturetreeundertheactiveStaticCaseSolutionobjectsset.Ifyoude-activatethisbuttonyougettheinitial,

i.e.undeformed,mesh.Youcanalsosetashrinkcoefficientforalltheelementsofyourmesh.2-Tocustomizethevisualization,double-clicktheDeformedMeshImageobjectinthefeaturetreetoedittheimage.The“ImageFemEditor”dialogboxisdisplayed.Youcanchoosetoseejustoneentity.COPYRIGHTDASSAULTSYSTEMES200255VonMisesStressimagesareusedtovisualizeVonMisesstressfieldpatterns,whichrepresentascalarfieldquantityobtainedfromthevolumedistortionenergydensityandusedtoassessthestateofstress.1-Clickthe“VonMises’iconTheVonMisesstressdistributiononthepartisvisualizediniso-valuemode,alongwithacolorpalette,andaStressVonMisesImageobjectappearsinthefeaturetree.ImageCreation-VonMisesStress2-Tocustomizethevisualization,double-clicktheVonMisesStressImageobjectinthefeaturetreetoedittheimage.The“ImageEditor”dialogboxisdisplayed.Ifyoude-activatethistogglebuttontheVonMisesstressimageisdisplayedontheundeformedmesh.Forasoundstructuraldesign,themaximumvalueoftheVonMisesstressisgenerallyconsideredtobelessthanthematerialyieldstressvalue.COPYRIGHTDASSAULTSYSTEMES200256Displacementimagesareusedtovisualizedisplacementfieldpatterns,whichrepresentavectorfieldquantityequaltothevariationofpositionvectorsofmaterialparticles.Thedisplacementresultingfrompartloadingisnecessaryforacorrectevaluationofthewayinwhichthepartbehaves.1-Clickthe“Displacements”iconTheDisplacementsdistributiononthepartisvisualizedinarrowsymbolmode,alongwithacolorpalette.ImageCreation-DisplacementsIfyoude-activatethisbuttontheDisplacementsimageisdisplayedontheundeformedmesh.Youcanchoosebetweenasymbolicview(vectors)oranaverage-isoview(colors),andfilterthedesireddisplacementvector’scomponents.2-Tocustomizethevisualization,double-clicktheDisplacementsImageobjectinthefeaturetreetoedittheimage.The“ImageEditor”dialogboxisdisplayed.COPYRIGHTDASSAULTSYSTEMES2002571-Clickthe“PrincipalStress“iconStressPrincipalValueimagesareusedtovisualizeprincipalstressfieldpatterns,whichrepresentatensorfieldquantityusedtomeasurethestateofstressandtodeterminetheloadpathonthepart.Ateachnode,theprincipalstresstensorshowsthedirectionsalongwhichthepartisinastateofpuretension/compressionandthecorrespondingtensile/compressivestresses.ThePrincipalValuesStressTensordistributiononthepartisvisualizedinsymbolmode,alongwithacolorpalette:ateachpoint,asetofthreedirectionsisrepresentedbylinesymbols(principaldirectionsofstress).Arrowdirections(inwards/o