UG有限元高级仿真真正有用的资料

-.z.高级仿真高级仿真1N*Nastranstructuralanalysisandsolutiontypes2N*Nastranthermalanalysisandsolutiontypes4线性静态分析4Supportedlinearstaticanalysistypes4Usingmaterialsforalinearstaticanalysis5Definingboundaryconditionsforalinearstaticanalysis5Usingtheiterativesolver5模态分析6Supportedmodalanalysistypes6Usingmaterialsforamodalanalysis7Definingboundaryconditionsforamodalanalysis7Settingmodalsolutionattributes7Reviewingmodalanalysisresults8如何判断模态的频率9线性曲屈分析9Bucklinganalysisintroduction9Linearbucklingassumptions10Supportedbucklinganalysistypes10Usingmaterialsforabucklinganalysis10Definingboundaryconditionsforabucklinganalysis10Reviewingbucklinganalysisresults11Nonlinearstaticanalysisintroduction11Supportednonlinearsolutiontypes12Whethertouseanonlinearsolution12UsingelementsforsolutiontypeNLSTATIC10613UsingelementsforsolutiontypeADVNL601,10613UsingmaterialsforsolutiontypesNLSTATIC106andADVNL601,10614Enteringstress/straindataforsolutiontypesNLSTATIC106andADVNL601,10614DefiningboundaryconditionsforsolutiontypesNLSTATIC106andADVNL601,10615NLSTATIC106的求解设置15ADVNL601,106的求解设置16响应仿真17仿真步骤17Specialboundaryconditions18SolutionattributesforResponseSimulation20FRFandTransmissibility20Analysisevents21E*citationloads22FunctiontoolsforResponseSimulationutility22Sensors23Straingages23产生整个模型在极值点处的响应24柔体分析24Fle*iblebodiesworkflow24AdvancedSimulationsteps24MotionSimulationsteps25Connectingthefle*iblebodyFEMtothemechanism25Definingconnectionandloaddegreesoffreedom25N*NastranstructuralanalysisandsolutiontypesAnalysistypeSolutiontypeDescriptionLinearStaticSESTATIC101–SingleConstraintSESTATIC101–Multi-ConstraintSESTATIC101–SuperelementStructuralsolveusedtosolvelinearandsomenonlinearproblems,suchasgapsandcontactelements.ModalAnalysisSEMODES103SEMODES103–ResponseSimulationSEMODES103–SuperelementSEMODES103–Fle*ibleBodyEvaluatesnormalmodesandnaturalfrequencies.LinearBucklingSEBUCKL105Determinesbucklingloadsandbuckledmodeshapes.NonlinearStaticsNLSTATIC106Considersgeometricandmaterialnonlinearbehavior.DirectFrequencyResponseSEDFREQ108Frequencyresponseiscalculateddirectly(withoutnormalmodes).DirectTransientResponseSEDTRAN109Transientresponseiscalculateddirectly(withoutnormalmodes).ModalFrequencyResponseSEMFREQ111Frequencyresponseisbasedonpreviouslysolvednormalmodes.ModalTransientResponseSEMTRAN112Transientresponseisbasedonpreviouslysolvednormalmodes.NonlinearTransientResponseNLTRAN129Dynamictransientresponseiscalculated,whichincludes(NLSTATIC106)nonlinearconditions.AdvancedNonlinearStatics(implicit)ADVNL601,106Considersgeometricandmaterialnonlinearbehavior.AdvancedNonlinearTransientResponse(implicit)ADVNL601,129Dynamictransientresponseiscalculated,whichincludesnonlinearconditions.AdvancedNonlinearDynamicAnalysis(e*plicit)ADVNL701Calculatesdynamicresponseswithnonlineareffects.DesignOptimizationDESOPT200Adjuststhedefineddesignvariableswithinthelimitsyouspecifyasitsearchesfortheoptimumconditions,whileworkinginthescopeofyouroveralloptimizationobjectiveandoutputconstraints.A*isymmetricStructuralSESTATIC101-Multi-ConstraintNLSTATIC106ADVNL601,106ADVNL601,129SolvesanFEmodelthatisdefinedforonlyasectioncutononesideofthea*isofana*isymmetricpart.Thisgreatlyreducesthedegreesoffreedom(DOF)andhencealsosignificantlyreducessolutiontime.N*NastranthermalanalysisandsolutiontypesAnalysistypeSolutiontypeDescriptionSteadyStateHeatTransferNLSCSH153Thermalanalysis.A*isymmetricThermalNLSCSH153ThermalanalysisforanFEmodelthatisdefinedforonlyasectioncutononesideofthea*isofana*isymmetricpart.线性静态分析SupportedlinearstaticanalysistypesInAdvancedSimulation,youcanchoosefromthefollowinglinearstaticanalysistypeswhenyoucreateastructuralsolution.SolverSolutiontypeN*NastranMSCNastranSESTATIC101-SingleConstraintN*NastranMSCNastranSESTATIC101-Multi-ConstraintANSYSLinearStaticsABAQUSStaticPerturbationsubstepUsingmaterialsforalinearstaticanalysisMaterialtypesthatcanbeusedinalinearstaticanalysisinclude:IsotropicOrthotropicAnisotropicLaminateDefiningboundaryconditionsforalinearstaticanalysisBoundaryconditionsforlinearstaticanalysiscanbegeometry-basedorfiniteelement-based.E*amplesinclude:PointandedgeforcesFaceloadsTemperatureloadsDisplacementconstraintsCoupleddegreesoffreedomUsingtheiterativesolverYoucanturnontheElementIterativeSolveroptionontheSolutiondialogbo*,orwhenyouarepromptedafteryoustartasolve.Theiterativesolver:Canbefaster,useslessmemory,andhasfewerdiskrequirementsthanthestandardsparsematri*solver.Canbeusedforalinearstaticanalysisthatdoesnotincludecontact.Showsthebestperformancegainwithmodelsposedmostlyofsolidelements.Isveryefficientformodelsposedmostlyofparabolictetrahedralelements.模态分析SupportedmodalanalysistypesInAdvancedSimulation,youcanchoosefromthefollowingmodalanalysistypeswhenyoucreateastructuralsolution:SolverSolutiontypeN*NastranSEMODES103SEMODES103-ResponseSimulationSEMODES103-SuperelementSEMODES103-Fle*ibleBodyMSCNastranSEMODES103SEMODES103-SuperelementANSYSModalABAQUSFrequencyPerturbationsubstepUsingmaterialsforamodalanalysisMaterialtypesthatcanbeusedinamodalanalysisinclude:IsotropicOrthotropicAnisotropicFluidDefiningboundaryconditionsforamodalanalysisBoundaryconditionsformodalanalysisincludeconstraintsandgluing,suchas:Displacementconstraints.Coupleddegreesoffreedom.Surface-to-surfacegluingSettingmodalsolutionattributesForamodalanalysis,someoftheN*Nastransolutionattributesinclude:Ma*JobTimeOutputRequestsRealEigenvalueE*tractionData.Identifiesthetypeofsolve:LanczosorHouseholder.LanczosMethodorHouseholderMethod.Themethodspecifiestherealeigenvaluee*tractionoptionsforthesolution.Eigenvaluee*tractionoptionsarestoredasasolver-specificobject.Lanczosistheremendedmethodformostmodels;Householderisremendedforsmallermodels.Theoptionsincludefrequencyrangelowerandupperlimits,andthenumberofdesiredmodes.DefaultTemperatureFormoreinformation,seeSolversandSolutions→SettingNastranSolutionOptionsintheAdvancedSimulationonlineHelp.ReviewingmodalanalysisresultsNaturalfrequenciesandmodeshapesaretheprimaryresultsforamodalsolution.Theresultsareorderedbyfrequency,withthelowestnaturalfrequencybeingthefirstmodeshape,thene*thighestbeingthesecondmode,andsoon.Thenormalmodesrepresentdynamicstatesinwhichtheelasticandinertialforcesarebalancedwhennoe*ternalloadsareapplied.Themagnitudeofthemodeshapesisarbitrary.Theamplitudeofthedisplacementisnotsignificant,buttherelativedisplacementofthenodesissignificant.Modeshapeshelpyoudeterminewhatloadlocationsanddirectionswille*citethestructure.如何判断模态的频率Thefirst6modeshavee*tremelylowfrequencies.Thesearerigidbodymodes.Mode7representsthefirstfle*iblemodewithanaturalfrequencyofabout133Hz.线性曲屈分析BucklinganalysisintroductionBucklinganalysis:Determinesbucklingloadsandbuckledmodeshapes.Abucklingloadisthecriticalloadatwhichastructurebeesunstable.Abuckledmodeshapeisthecharacteristicshapeassociatedwithastructure'sbuckledresponse.Identifiesthecriticalloadfactor,whichisthevaluethatcanbemultipliedbytheappliedloadtocausebuckling.LinearbucklingassumptionsThebucklinganalysisuseslineartheory.Thefollowingassumptionsandlimitationsapply:Thedeflectionspriortobucklingaresmall.Thereferenceequilibriumconfigurationistheinitialgeometryofthepart.Theresponseofthestructurepriortobucklinge*hibitsalinearrelationshipbetweenstressandstrain.Post-bucklingbehaviorisnotpredictedSupportedbucklinganalysistypesInAdvancedSimulation,youcanchoosefromthefollowingbucklinganalysistypeswhenyoucreateabucklingsolution:SolverSolutiontypeN*NastranMSCNastranSEBUCKL105ANSYSBucklingABAQUSBucklingPerturbationSubstepUsingmaterialsforabucklinganalysisMaterialtypesthatcanbeusedinabucklinganalysisinclude:IsotropicOrthotropicAnisotropicDefiningboundaryconditionsforabucklinganalysisForabucklinganalysis:Defineconstraints.Constrainthemodelasyouwouldforalinearstaticanalysis.Applyloads.Theloadsetcancontainmorethanoneloadtype(Force,Pressure),buteveryloadwillbescaledbytheloadfactor.Amagnitudeof1isoftenusedwhenasingleloadtypewillcausethemodeltobuckle.ReviewingbucklinganalysisresultsForN*Nastranresults,bucklinganalysisresultsarelistedas:Asetofstaticanalysisresultsforthebucklingloadssubcase.Asetofmodesforthebucklingmethodssubcase.Eachmodehasaneigenvalue(loadfactor)listed.Theappliedloadmultipliedbythebucklingloadfactoristheloadatwhichthepartwillbuckle.Thefirstmodehasthelowestbucklingloadfactorandisusuallythemodeofmostinterest.Ifthebucklingloadfactorisbelow1,theparthasbuckled.如果eigenvalue小于1，则这个模型就已经发生曲屈。ThecriticalloadistheproductoftheappliedloadandtheeigenvalueforMode1.比方在本例中施加的载荷为1N,而Mode1的对应值为1380，则这个临界载荷为1*1380N.NonlinearstaticanalysisintroductionThenonlinearsolutiontypesNLSTATIC106andADVNL601,106arecapableofsimulatingthefollowingconditions:geometricnonlinear,materialplasticity,andhyperelasticity.Thisintroductionpresentstwoofthesenonlinearconditions:Materialplasticity–Materialdataisenteredthatdescribesboththelinearelasticandtheplasticyieldportionofthestressstraincurve.Geometricnonlinear–Pressureloadsandelementstiffnessareupdatedasthesolutioniterates.Largegeometrydisplacementsandrotationaresupported.NLSTATIC106andADVNL601,106solutionscanincludematerialplasticityandgeometricconditionsseparatelyorsimultaneously.SupportednonlinearsolutiontypesInAdvancedSimulation,youcanchoosefromthefollowingnonlinearsolutiontypeswhentheAnalysisTypeissettoStructural.SolverSolutiontypeN*NastranNLSTATIC106ADVNL601,106ADVNL601,129ADVNL701MSCNastranNLSTATIC106ANSYSNonlinearStaticsABAQUSGeneralAnalysisWhethertouseanonlinearsolutionAnSESTATIC101linearstaticsolution:Calculatestheelementstiffness(K)matri*onceatthebeginningofthesolution.AssumesHooke'slaw,Force=KU,tocalculatedisplacements(U).Doesnotaccountforlargedisplacementsandrotation.Willnotupdatepressureloaddirections.AnNLSTATIC106orADVNL601,106solutionwithgeometricnonlinearconditions:Iterates(迭代)tofollowanonlinearforce/displacementpath.Periodically〔定期的〕updatestheelementstiffnessmatri*whilefollowingthenonlinearforce/displacementpath.Usesastraindefinitionwhichaccountsforlargedisplacementsandrotations.Usesthecurrentconfigurationofadeformedstructuretodeterminethedirectionofpressureloads.Astiffnesschangemaybearesultofbothgeometryandmaterialnonlineareffectsifbothareincludedintheanalysis.几何非线性UsingelementsforsolutiontypeNLSTATIC106ForsolutiontypeNLSTATIC106,nonlinearelementsmaybebinedwithlinearelementsforputationalefficiencyifthenonlineareffectscanbelocalized.Thesupportednonlinearelementsinclude:3D4-nodedand10-nodedtetrahedralsolidelements.3D8-nodedhe*ahedralsolidelements.3D6-nodedpentagonalsolidelements.2D4-nodedquadrilateralor3-nodedtriangularthinshellelements.1D2-nodedbar,beam,rod,andspringelements.GAPelementsarecreatedwhen“contactmesh〞or“surfacecontactmesh〞meshmatingconditionsaredefined.NLSTATIC106solutiontreatstheGAPelementasanonlineargapelementinwhichthegapconditionsupdateasthenonlinearsolutioniterates.UsingelementsforsolutiontypeADVNL601,106ForsolutiontypeADVNL601,106,thesupportednonlinearelementsinclude:3D4-nodedand10-nodedtetrahedralsolidelements.3D8-nodedand20-nodedhe*ahedralsolidelements.3D6-nodedand15-nodedpentagonalsolidelements.3D5-nodedand13-nodedpyramidsolidelements.3D4-nodedand8-nodedor3-nodedand6-nodeda*isymmetricthinshellelements.2D4-nodedand8-nodedquadrilateralor3-nodedand6-nodedtriangularthinshellelements.1D2-nodedbar,beam,rod,andspringelements.RBE2andRBE3elements.0Dconcentratedmasselements.Gapelements.UsingmaterialsforsolutiontypesNLSTATIC106andADVNL601,106MaterialtypesthatcanbeusedinthesolutiontypeNLSTATIC106include:Isotropicwithorwithoutelastic/plasticproperties.Anisotropicforgeometricnonlinearonly.HyperelasticpropertiesthatcanbeassigneddirectlytothephysicalpropertiesforPLPLANE(2Delements)orPLSOLID(3Delements).MaterialtypesthatcanbeusedinthesolutiontypeADVNL601,106include:Isotropic.Orthotropic.HyperelasticpropertiesthatcanbeassigneddirectlytothephysicalpropertiesforPLPLANE(2Delements)orPLSOLID(3Delements).Enteringstress/straindataforsolutiontypesNLSTATIC106andADVNL601,106Createanewisotropicmaterial.IntheStress-StrainRelatedPropertiesgroup,selectFieldfromtheStress-Strain(H)list.FromtheSpecifyFieldlist,selectTableConstructor.Enteravalueof0,0forthefirstdatapoint.Forthesecondpoint,enteravaluethatcorrespondstotheyieldpoint.Youcanalsodefineadditionaldatapoints.IntheIsotropicMaterialdialogbo*,enteranInitialYieldPoint(LIMIT1)value.Thisvaluemustmatchthesecondstressvalueinthestress-straintable.DefiningboundaryconditionsforsolutiontypesNLSTATIC106andADVNL601,106BoundaryconditionsforsolutiontypesNLSTATIC106andADVNL601,106canbegeometry-basedorfiniteelement-based.E*amplesinclude:Displacementconstraints.Allloads.Onlypressureloadsareupdatedingeometricnonlinear.Surface-to-surfacegluing.Surface-to-surfacecontactissupportedforADVNL601,106,butnotforNLSTATIC106.NLSTATIC106的求解设置LargeDisplacements—Includesnonlineargeometryeffects.IntermediateOutput—Determinesifoutputisstoredforeveryconvergedloadincrement,oronlyatthefinalincrementforeachsubcase.NumberofIncrements—Subdividesallsubcaseloadsbythevalueentered.Thiscanbeincreasedifasolutionhasproblemsconverging.ADVNL601,106的求解设置solutioncontrolandstrategyinADVNL601,106aresetundertheCaseControltab/StrategyParameters.Somee*amplesare:AnalysisControl—SettingtheAutomaticIncrementationSchemetoATSautomaticallysubdividestimestepsthatfailtoconverge.Equilibrium—Canbeusedtoadjustthedefaultconvergenceoptionsandtolerances.Also,thelinesearchiterationschemecanbeselectedhere.Contact—Controlscontactoptionsforallcontactsets.响应仿真主要就是用于确定构造模型对于一系列载荷工况的动态或静态响应仿真步骤StepSummary1.Buildthefiniteelement(FE)model.Definethegeometry,materialproperties,mesh,andconstraints,asyouwouldforotherstructuralsolutiontypes.Also,specifythelocationsofyoure*citationsanddefineanystaticanddynamicloads.2.CreatetheN*Nastransolution.CreateanN*NastranSEMODES103–ResponseSimulationsolution.YoucanalsouseanSEMODES103solution,butitgeneratesonlythenormalmodes.3.Solvethemodel.N*Nastrangeneratesnormalmodes,constraintmodes,attachmentmodes,andothermodalinformation.4.CreatetheResponseSimulation.Aftersolvingthemodel,createtheResponseSimulationsolutionprocess.5.Reviewthemodeshapes.ReviewthemodeshapesinthePost-ProcessingNavigatororintheResponseSimulationDetailsViewsubpanelintheSimulationNavigator.6.Definethedampingvaluesforeachmode.IntheResponseSimulationDetailsViewsubpanel,youcanaddviscousandhystereticdamping.7.Createanevent.Definethetypeofresponsesimulationyouwillperform,suchastransientorfrequency.Theeventbinesthemodalmodelandyoure*citationfunctions.8.Createe*citationfunctions.E*citationsdefinetheloadingfortheresponsesimulation,suchasavehicle'stiresfollowingabump'sprofile.9.Analyzethemodel'sdynamicresponsestothee*citations.Dependingonthetypeofresponseyouareevaluating,thesoftwarecalculatesandstorestheresultsinresponsefunctionsorresponseresultssets.Responsefunctionseachcontainoneresponse(fore*ample,stressatonenode)asafunctionoftimeorfrequency.YoucanplotthesefunctionrecordsintheN*graphicswindow.Responseresultssetseachcontainresponsesformultiplenodesorelementsinthemodelforonetimesteporfrequency.YoucanviewresponseresultssetsascontourplotsonthePost-ProcessingNavigator.SpecialboundaryconditionsInResponseSimulation,afiniteelement(FE)modelrepresentsthephysicalmodelofthestructure.在响应仿真中，除了你可以定义同其它的求解器一样的约束与边界条外，还有如下的特殊的边界条件。TypeDescriptionEnforcedmotionlocationThelocationofanenforcedmotione*citationonthemodel.Thisisalocationonly;youdefinetheactuale*citationloadafteryousolvethesolution.Thesolvergeneratesconstraintmodes,equivalentattachmentmodes,andeffectivemassesbasedontheselocations.CreateenforcedmotionlocationsintheConstraintscontainerintheSimulationNavigator.NodalForcelocationThelocationofanodalforcee*citationonthemodel.Thisisalocationonly;youdefinetheactuale*citationafteryousolvethesolution.Thesolvergeneratesattachmentmodesbasedontheselocations.CreatenodalforcelocationsintheLoadscontainerintheSimulationNavigator.StaticoffsetloadForTransientevents,aconstantloadforscalingtheresults(fore*ample,agravityloadforusewithconcentratedmasselements,oradistributedwindloadonthestructure).CreatestaticoffsetloadsintheSubcase–StaticOffsetcontainerintheSimulationNavigator.Afteryousolvethesolutionandcreateanevent,theStaticOffsetnodeappearsintheSimulationNavigatorundertheeventnode.Youcane*cludethestaticoffsetresultsfromtheresponseevaluationbyright-clickingtheStaticOffsetnodeandchoosingDeactivate.StressstiffeningloadAdifferentialstiffnesstoaccountfortheweakeningofastructureduetostress.Youcanusethisloadtopre-stressstructuresthatarethininoneortwodimensions,suchasshellorcable-likestructureswithsmallinitialstiffness,andlargemembraneloads,suchasadrumheadwithinitialtension.Thesolverusestheseloadstoaugmentthestiffnessinthenormalmodecalculations.Itcalculatesthestressstiffnessandbinesitwiththelinearstiffnessandthenusesthebinationofthesetwomatricestosolvethenormalmodeseigenvalueproblem.CreatestressstiffeningloadsintheSubcase–StressStiffeningcontainerintheSimulationNavigator.DynamicloadAloadyoucanscaleaftersolvingthemodalsolution.Thesolvergeneratesaloadsetanddistributedattachmentmodesforeachdynamicload.Youcanthenassignascalingfunctionwhenyoucreateane*citation.Dynamicloadsarenecessaryforapplyingdistributed-loade*citationsandcanalsobeusedasstatice*citationsinaQuasi-Staticanalysisevent.CreatedynamicloadsintheSubcase–DynamicscontainerintheSimulationNavigator.SolutionattributesforResponseSimulationFRFandTransmissibility在完成载荷与边界条及一些其它的边界条件之后就可以进展求解了。频率响应函数(FRF)用来评估一个或几个节点或单元的对于输入的单位载荷的响应传递性〔transmissibilit〕可以用来评估一个或几个节点对于强迫位移或速度或加速度的响应。Evaluatetransmissibility〔这是后处理中的重要一步〕Transmissibilityisafrequencyresponsefunction(FRF)thatletsyouevaluatetheresponseofoneorseveraloutputnodestoanenforcedmotioninputsuchasdisplacement,velocity,oraccelerationataselectednode.Analysisevents分析类型及可获得的结果：EventtypeResponsecalculated瞬态响应构造在随时间变的的鼓励载荷下的动态响应主要适用于比方驱车在一个车道上行驶或其它的任何的构造在一段时间受鼓励载荷的影响频率响应构造受一组振荡载荷的作用由于发动机的振动或车轮的不平衡对于驾驶者的舒适程度的影响随机响应Thepowerspectraldensity(PSD),rootmeansquare(RMS),andlevel-crossingrate(LCR)resultsofastructuretooneormoresimultaneousrandome*citations.E*amplesofrandome*citationsincludejetenginenoise,aprofileofaroadsurface,andtheeffectsofturbulenceonanairplane.普分析(alsocalledshockresponsespectrum)Thepeakresponseofastructuretoasetofsimultaneousbasee*citationsdefinedbyresponsespectrumfunctions.分析实例主要有：航空着陆,核超压分析,坠落实验,地震分析DDAM(DynamicDesignAnalysisMethod)Thedynamicresponseofaship'sponentstoshocksappliedtotheship'shull,deck,orshellplatingmountings.YoucandefineyourproprietaryshockcoefficientsasinputtotheDDAMevent.Youpredefinethesecoefficientsinate*tfile.Thenyoucanenteramultipliertoadjustthemeachtimeyouperformtheresponseevaluation.Quasi-StaticThestaticresponseofastructuretoasetofsimultaneoustime-varyingstatice*citations.Thiseventtypeisusefulifyouareonlyinterestedinstaticresultsandneedfastersolutionperformancethanafulldynamicsolution.E*citationloads鼓励载荷主要有以下几种：首先鼓励载荷是一种外部载荷。比方说交通工具的轮胎撞到路面上的凸起。powerspectraldensity(PSD)rootmeansquare(RMS)level-crossingrate(LCR)可能是以下几种中的一种:Nodalforcedefinedbyanode,adirection,andaforcefunction.Nodalenforced〔强迫的〕motiondefinedbyanode,adirection,andafunctionofdisplacement,velocity,oracceleration.Distributed-loade*citationdefinedbyscalingaloadthatyoupredefinedinthesolution(Transient,Frequency,orRandomeventsonly).Constantvelocityimpactordropimpactappliedtoasinglenode(usinganautomaticallygeneratedhaversinefunction).Rotatingforcedefinedaseitherageneralrotatingforceoranunbalancedrotatingmassaboutagivena*is(Frequencyeventsonly).FunctiontoolsforResponseSimulationutilityThisutilityprovidesusefulfunctionmandssuchas:Easycreationofe*citationfunctions,suchaspulse〔脉冲〕,randomsignal,andramp〔斜坡函数〕functionsDisplacement,velocity,andaccelerationdataconversion〔数据转换〕Time,frequency,SRS,andPSDdataconversionInterpolationEnvelopelineEquationbinationN*NastranPunchfileconversionfornodalresultsSensors传感器就是你在模型中定义的*个节点，你想在此节点处观察响应结果.比方传感器可以代表加速计的位置。Sensorsallowyoutoevaluatedisplacement,velocity,acceleration,andreactionforce.Eachnodeyouselectinyoursensordefinitiongeneratesaresponsefunction.Sensorsarestoredwithnamesthatreflectthenodeanddirectioninwhichthesensorevaluates.Fore*ample,Sensor_1_2_(99*+)_1representsthefunction2resultforSensor_1atnode99inthepositive*direction.StraingagesUseastraingagetospecifyanodalorelementallocationonthemodelatwhichtoevaluatestressorstrainresultsinaspecifieddirection.Straingagesdefine:LocationCoordinatesystemforthestressorstrainresultsponentsofthestressorstrainresults在响应仿真的求解过程中也包含了模态响应的过程，而且如果模态数设置的越多，则求解结果会越准确。这个模态的仿真分析可以从后处理器中查看到。在求解器中要进展如下的特殊设置其它后处理1.当然在此过程之前应先定义一个响应函数产生整个模型在极值点处的响应RunaResponseResultsevaluation.IntheEvaluateResponseResultsdialogbo*,selectStressastheRequestedResult(cleartheDisplacementcheckbo*).Selectalltheelementsinthemodel.SelectFrom*YGraphastheMethod.UnderPointValue,clickthebutton.IntheEquationSelectionlist,select2_(16E_VONMTOP).Intheplottedelementalstressfunction,selectthetimepointwherestressishighest,andthenclickOKtogeneratetheresponseresults.柔体分析定义：在运动仿真的过程中只是根据一定的约束条件，刚性体作一定的运动，它不含有任何的动态分析的特性，尤其是在以下情况下：显著的影响或运动的突然改变或是刚性杆件具有中够的柔性而防碍运动的情况。Fle*iblebodiesworkflowAdvancedSimulationstepsCreateafiniteelementmodelandN*NastranSEMODES103–Fle*ibleBodysolution.Meshthefle*ibleponentanddefinematerialproperties.Usea1DConnection(spiderelement)orotherconstraintelementstodefinetheponent'sconnectionpointstothemechanism.AddFi*edBoundaryDegreesofFreedomconstraintstodefineconnectiondegreesoffreedom.AddFreeBoundaryDegreesofFreedom