燒結機關鍵零部件有限元分析及優(yōu)化設計.pdf

1、沈陽理工大學碩士學位論文燒結機關鍵零部件有限元分析及優(yōu)化設計姓名：韓芳申請學位級別：碩士專業(yè)：機械設計及理論指導教師：安曉衛(wèi)20070101沈陽理工大學碩士學位論文AbstractSinteringMachineisoneofthemostimportantequlpmeminmodemsteelenterprizeThePalletCarandTailgatearethepivotalpartsoftheSinteringmachin

2、ewhichCO—supportmechanicalandthermalloadDuetothebadworkenvironmentandrunningconditions，thestrengthofPalletCarandTailgateisvitalThissubje蛾adoptANSYSParameterDesignLanguage(APDL)toestablishthePalletCar’sthreedimensionalfin

3、iteelementmodelBasedonthestrengthanalysis，thestructureoptimizationdesigniscarriedoutwhichusingstressconcentratecoefficientasadesignconstraintandweightasobjectivefunctiontoachievetheintentionoflightingtheweightprolongingt

4、heworklifespanreducingtheproductcostbutensuringthesecurityTheoptimizationresultshowsthattheweightoftheentireplalletcal“isreducedabout330Kg，andsinteringmachineisallenclosedsinteringbeltcomponentedby140palletcars，SOthewhol

5、eweightofwhichcanbereduced46tonsWhilethestressconcentrationcoefficientisreducedtoo，whichcallimprovethefatiguestrengthofthepalletcarTheresultsoftheoptimizationissatisfactoryOptimizationschemeisreaSonablypracticable，whichh

6、aveahighpracticalvalueandprovideanusefulreferenceforthepalletCardesignByintegratedANSYSandPr0／EinthepaperAnAPDLprogramproceduresiscarriedouttosimulatethematerialsinteringprocessfromuptodown100kingthepalletearareasofconta

7、ctingwiththematerialsasabandmovmgheatthetransientheatanalysisandthermalstressanalysisofthetailgateisperformedAccordingtothethermalstressdistributionofthetailgateeverytime，thestructureofthetailgateisimprovedThroughthecont

8、rasttotheresultthatbeforeandafteroptimizing，itWasfoundthatthethermaldeformationandstresshasbeenreduced，andthedistributionofheatstressconcentrationhasalsoimprovedWhichcandelayreducethecrackgenerationofthetailgate，extendth