Mechanical_Intro_15.0_WS5.1_LinStruc.pdf

Mechanical_Intro_15.0_WS5.1_LinStruc.pdf

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时间:2019-09-06

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1、Workshop5.1LinearStructuralAnalysis15.0ReleaseIntroductiontoANSYSMechanical1©2014ANSYS,Inc.February12,2014Release15.0GoalsWorkshop5.1consistsofa5partassemblyrepresentinganimpellertypepump.Ourprimarygoalsaretoanalyzetheassemblywithaloadonthebeltof100Ntotest:•Thatthe

2、impellerwillnotdeflectmorethan0.075mmwiththeappliedload.•Thattheuseofaplasticpumphousingwillnotexceedthematerial’selasticlimitsaroundtheshaftbore.2©2014ANSYS,Inc.February12,2014Release15.0AssumptionsWe’llassumethepumphousingisrigidlymountedtotherestofthepumpassembl

3、y.Tosimulatethis,africtionlesssupportisappliedtothemountingface.Similarly,frictionlesssurfacesonthemountingholecounterboreswillbeusedtosimulatethemountingboltcontacts.(Noteifaccuratestressesweredesiredatthemountingholes,a“compressiononly”supportwouldbeabetterchoice

4、).Finally,abearingload(X=100N)isusedonthepulleytosimulatetheloadfromthedrivebelt.Thebearingloadwilldistributetheforceoverthefaceofthepulleyonlywherethebeltcontactoccurs.3©2014ANSYS,Inc.February12,2014Release15.0...ProjectSchematic1.FromtheToolboxinserta“StaticStruc

5、tural”systemintotheProjectSchematic.1.2.FromtheGeometrycell,RMBand“ImportGeometry>Browse”.Importthefile“Pump_assy_3.stp”.2.3.Doubleclickthe“Model”celltostarttheMechanicalapplication.3.4©2014ANSYS,Inc.February12,2014Release15.0Preprocessing4.OnthetoolbarwithintheANS

6、YSMechanicalenvironment,selectUnits,andchangethesystem’sunitto•Metric(mm,kg,N,s,mV,mA)•(Note–materialdataisnotbeingcheckedbutitisgoodpracticetoconfirmunits)5.Add“Polyethylene”theEngineeringData(returntoWorkbenchwindow):a.DoubleclicktheEngineeringDatacell.b.Activate

7、theEngineeringDataSourcestoggleandhighlightGeneralMaterialsandclickthe+signnextto“Polyethylene”.c.ReturntoProjectbyclosingdownEngineeringData.5a.5c.5b.5©2014ANSYS,Inc.February12,2014Release15.0...Preprocessing6.RefreshtheModelcell:a.RMB>Refresh.ReturntotheMechanica

8、lwindow.7.Changethematerialonthepumphousing:a.Highlight“PumpHousing”undergeometry.7a.b.Fromdetailschangethematerialassignmentto“Polyethylene”.7b.

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