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1、Chapter11MSC.Nastran/MSC.AdamsInterfaceTableofContentsPurposeofMSC.Nastran/AdamsFlexInterfaceFeaturesSupportedUser’sInterfaceOutputforMSC.AdamsMSC.AdamsUnitsMSC.Nastran/AdamsInterfaceExamplesExample1—ComponentasasuperelementExample2—ComponentasresidualstructureonlyExam
2、ple3—ComponentRestartingfromSOL106toSOL103GuidelinesandLimitationsPurposeofMSC.Nastran/AdamsFlexInterfaceIncorporatesreducedflexiblebodycomponentdynamicsfromMSC.NastranintoMSC.AdamsFlexForperformingsystemflexiblebodyanalysis—includinglargerigidbodymotionsTypicalApplica
3、tions:Elasto-kinematicanalysisofvehicularsuspensionsEnginecrankshaft-drivetraininteractionAircraftlandingconditionsSatellitepaneldeploymentPurposeofMSC.Nastran/AdamsFlexInterface(cont.)PriortoMSC.Nastran2004,thistypeofcouplingisatwostepsprocessGeneratesanoutput2filefro
4、mMSC.NastranusingandmapalterConvertsthisoutput2fileintoanMSC.AdamsModalNeutralfile(MNFfile)usingOUT2MNFThisfileisthenreadablebyMSC.AdamsFlexIn2004,youcangeneratetheMNFfiledirectlyfromMSC.NastranFeaturesSupportedThecomponentcanbeasuperelementTheexteriorpointsaretheattac
5、hmentpointsSupportsbothmainbulkandpartsuperelementsThecomponentcanberesidualstructureUseASET/ASETitodefineattachmentpointsSupportstheuseofstatsubforprestiffeningwithsmalldeflectioninSOL103SupportslargedisplacementwithpreloadRunSOL106withpreloadandsavedatabaseRestartinS
6、OL103using“param,nmloop,x”User’sInterfaceOnlytwonewcommands/entriesarerequiredCaseControlcommandtogenerateMNFfileADAMSMNFFLEXBODY=YESBulkDataEntrytospecifyunitsusedbyADAMS/FlexDTI,UNITS,1,mass_unit,force_unit,length_unit,time_unite.g.,DTI,UNITS,1,KG,N,M,SECAdditionalfe
7、atureswillbeshownintheexamplesectionsUser’sInterface(cont.)FullADAMSMNFCaseControlcommandMostcommonlyusedoptionsOutputforMSC.AdamsThefollowingoutputaregeneratedforMSC.Adams:ModalstiffnessModalmassModalloadDiagonalmatrixofa-setunitboundarydisplacementPhysicalmassmatrixS
8、tressshapeStrainshapeMSC.AdamsUnitsMSC.AdamsisnotaunitlesscodeParam,wtmass,xisusedinMSC.Nastrantoscaleweight/massunit
