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1、Workshop4GeneralAxisymmetricElements14.5ReleaseIntroductiontoANSYSRotordynamics1©2013ANSYS,Inc.Release14.5Geometrysetup14.5ReleaseIntroductiontoANSYSRotordynamics2©2013ANSYS,Inc.Release14.5Steps2.Amulti-bodypartisformedand1.Geometryisimportedinthicknessi
2、sassignedtoDesignModelersurfacebodiesImportedAxisymmetricmodelBearinglocations3©2013ANSYS,Inc.Release14.5Step1:GeometryImporta)Inanemptyproject,addageometryb)RMBonGeometry,“ImportGeometry…”systemandselectAxisymmetric.agdba.b.4©2013ANSYS,Inc.Release14.5St
3、ep1:GeometryImport…c)RMB“Edit”thegeometryord)Select“Millimeter”asunitdouble-clickLMBc.d.5©2013ANSYS,Inc.Release14.5Step1:GeometryImport…GeometrygeneratedattheendofStep16©2013ANSYS,Inc.Release14.5Step2:FormNewPart&Thicknessa)SelectalltheSurfaceBodies.InDe
4、tailsView,“Thickness(>=0)”=“0.001mm”a.7©2013ANSYS,Inc.Release14.5Step2:FormingNewPart&Thickness…b)“FormNewPart”withthe4surfacebodies&“Generate”b.8©2013ANSYS,Inc.Release14.5Mechanical14.5ReleaseIntroductiontoANSYSRotordynamics9©2013ANSYS,Inc.Release14.5Pr
5、ojectSchematic•Backtotheprojectpage:NotethattheparametersethasbeencreatedwiththeRadiusofthedisk•Draganddropa“Modal”systemontotheGeometry•DoubleclickonModeltoedit10©2013ANSYS,Inc.Release14.5Units•SelecttheMetric(mm,kg,N,s,mV,mA)unitsystem11©2013ANSYS,Inc.
6、Release14.5APDLScriptPurpose:•Tochangetheelementtypetosolid272(generalaxisymmetricelement)•TogeneratenodesintheNodalPlanes(numberofnodalplanesdefinedinkeyoptsettingsofSOLID272)•Toachievethis,weuseAPDLCommandSnippets(2inthiscase)asdescribedinthenextslide1
7、2©2013ANSYS,Inc.Release14.5APDLScript…!CommandSnippet(attachedtothefirstbody)mat1=matid!Storesmaterialnumberforallelementsin1stsurfacebodytoaparametermat1!CommandSnippet(attachedtothesecondbody)mat2=matid!Storesmaterialnumberforallelementsin2ndsurfacebod
8、ytoaparametermat2!CommandSnippet(attachedtothethirdbody)mat3=matid!Storesmaterialnumberforallelementsin3rdsurfacebodytoaparametermat313©2013ANSYS,Inc.Release14.5APDLScript…!CommandSnippet(attachedtothefourthsurfacebodyi.e.
