蜂窝夹层板在patran中建立课件.ppt

《蜂窝夹层板在patran中建立课件.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、WORKSHOP7BMODELINGHONEYCOMBWITHSOLIDANDSHELLELEMENTSWS7B-1PAT325,Workshop7B,April2007Copyright2004MSC.SoftwareCorporationProblemDescriptionUnlikethepreviousworkshopthatinvolvedmodelingthehoneycombstructureusingtheMSC.LaminateModeler,thisworkshopisusedtoshowhowtomodelthehoneycombstructureusingsolid

2、andshellelements.Solidhexahedralelementsaretobeusedtorepresentthecore,andshellelementsaretousedtorepresentthelaminatebacking.Similarconstraintsandloadingaretobeappliedtothemodel.AftertheMSC.Nastrananalysistheresultsaretobelookedat,andperhapscomparedtothoseforthepreviouslaminatemodel.SuggestedExerci

3、seStepsCreateanewdatabaseImporttwosurfacesfromanIGESFileCreateasolidfromthetwoimportedsurfacesMeshthesolidusingIsoMeshMeshatsurfacesofthesolidusingIsoMeshEquivalencethesolidandsurfacemeshesCantileveroneendofhoneycombmodelApplytheforceloadatthefreeendofthemodelCreatematerialpropertiesusingasessionfi

4、leCreatetheisotropicmaterialforthecoreCreateacompositematerialusinglaminateinMSC.PatranCreate3DelementpropertysetforcorematerialCreateelementpropertyforupperlaminaCreateelementpropertyforlowerlaminaAnalyzethemodelandattachtheresultsfileVerifythestresstensoranddisplacementresultsdefbcStep1.CreateaNe

5、wDatabaseCreateanewdatabase.File/New.Enter2nd_Honeycombasthefilename.ClickOK.SelectMSC.NastranastheAnalysisCode.SelectStructuralastheAnalysisType.ClickOK.aStep2.ImporttwoSurfacesFromanIGESFileImporttwosurfacesfromanIGESfile.File/ImportSelectIGESfromtheSource.Selectexercise7b.igs.Click–Apply-.ClickO

6、KwhentheIGESImportSummaryappears.abcdeThisishowthegeometryshouldlooklikeafterimportingthefile.Step2.ImporttwoSurfacesFromanIGESFile(Cont.)Step3.CreateaSolidFromthetwoImportedSurfacesCreateaparametricsolidusingthetwosurfaces.Geometry:Create/Solid/Surface.Select2SurfacesastheOption.UnchecktheAutoExec

7、utetoggle.SelectSurface1astheStartingSurfaceList.SelectSurface2astheEndingSurfaceList.Click–Apply.abcdefStep4.MeshtheSolidUsingIsoMeshMeshthegeometricsolid.Elements:Create/Mesh/Solid.SelectHexastheElemShape