Definition of Weight and Inertia Loading.pdf

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1、APPENDIXC3DefinitionofWeightandInertiaLoadingObjectives:■Createanaxisymmetricmodel.■Applyaxisymmetricboundaryconditions.■Analyzetheaxisymmetricmodel.■Compareresulttothefullmodel.MSC.Nastran105ExerciseWorkbookC3-1C3-2MSC.Nastran105ExerciseWorkbookAPPE

2、NDIXC3DefinitionofWeightandInertiaLoadingModelDescription:Thisexerciseisdesignedtostudytheeffectofgravityonamodel.WhenmodelingagravityloadinEnglishunits,usersmaysometimesforgettoconvertthemassdensitytoweightdensity.Failuretodosowillyieldresultsthatar

3、eincorrect.FigureC3.1-ModelGeometryIDBhODTableC3.1OuterDiameterofCylinder(OD)4inInnerDiameterofCylinder(ID)3.25inHeight(B)16inHoleDiameter(h)1.5inWeightDensity0.101lbs/in3Weight/MassFactor2.59E-3sec2/inElasticModulus10.0E6lbs/in2Poisson’sRatio0.33MSC

4、.Nastran105ExerciseWorkbookC3-3FigureC3.2-LoadsandBoundaryConditionsGravity=7g123123123123123123C3-4MSC.Nastran105ExerciseWorkbookAPPENDIXC3DefinitionofWeightandInertiaLoadingSuggestedExerciseSteps■Openthepreviousworkshop.■Createanewgroupthatincludes

5、onlyaquarterofthemodel.■Definethex-andy-symmetrycondition(SPC1).■Preparethemodelforastaticanalysis(SOL101).■GenerateaninputfileandsubmitittotheMSC.Nastransolverforstaticanalysis.■Reviewtheresults.MSC.Nastran105ExerciseWorkbookC3-5IDSEMINAR,WORKSHOPC3

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