汽车驱动桥壳的有限元分析和优化外文文献翻译.docx

汽车驱动桥壳的有限元分析和优化外文文献翻译.docx

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汽车驱动桥壳的有限元分析和优化外文文献翻译

文献出处：

PaulD.FEAnalysisandOptimizationofVehicleDriveAxleHousing[J].JournalofEngineeringComputers&AppliedSciences,2015,12（3）:

21-35.

原文

FEAnalysisandOptimizationofVehicleDriveAxleHousing

PaulD

Abstract

Asamainpartofcars,driveaxlehousingsupportstheautomobilechassisandthecarriage,passesweightstothewheels.Meanwhile,theverticalforce,traction,brakingforceactingonthedrivewheelsarealsopassedtothesuspensionandtheframethoughtheaxlehousing;therefore,itisplayingasbothloadingpartandtransmissionpart.Becausetheaxleisusedfrequentlyundercomplexconditions,theirqualityandpropertydirectlyaffecttheoverallperformanceofthevehicleanditsusedlife,sothedriveaxlehousingmusthavecharacteristicsofsufficientstrength,stiffnessandgooddynamic.Currentlythetraditionalmethodhasbeendifficulttomeettherequirementsofdriveaxlehousing,whilebecauseofitsmanyadvantages;thefiniteelementmethodbecomesaneffectivewaytosolvetheproblem.

Keywords:

Driveaxlehousing,Leafspring,CollaborativeSimulation

1Introduction

Asoneofthemainpartsoftruck,driveaxleshelltoplaytheroleofasupportvehicleload,andcantransferloadtothewheels,atthesametime,thedrivingwheelontheverticalforceandtangentialforce,brakingforceandthetraction）,lateralforceisthroughitpassedtotheframeandcarriage,itplaytheroleofabearingloadandtransmitforces.Inthecar,driveaxleshellunderhighload,especiallywhenthecarloadedwithhighspeedintheunevenroadsurface,willproduceabigroadimpactloadofthewheels,undertheactionofstrongimpactload,thedynamicbehavioroftheoverallcarwillbefromthedriveaxleshellpartsinsideandoutsidetheinfluenceofthevibrationoftheincentivetoproduce,mayevenmakethebridgeshellproducesalotofdynamicstress,leadtocrack,fracture,evenseriouslyaffectthesafetyofthevehicle.Inautomobilestructure,duetotheuseofhighfrequency,driveaxleshellhashigherfailurerate,however,theoverallperformanceofthecarandtheusefullifeisinfluencedbyitsqualityandperformancedirectly,thisrequiresthatithasenoughstrength,stiffness,andhasgooddynamiccharacteristics,inturn,toensurethatthecar'sstability.

2Theresearchstatus

Duetothedevelopmentofcomputertechnology,expandingtheapplicationrangeofthefiniteelementmethod（fem）,especiallyinthe1970s,somefamousautocompaniesbegantoapplythefiniteelementmethodtothedesignofautoparts,raisedahotwaveoffiniteelementmethod（fem）intheautomobilestructuredesign,suchas:

fordusingNastranfiniteelementanalysissoftware,thefiniteelementmodelwithshellelementdefinitionunit,tothestaticanalysisofcarbody,getthestressnephogram,highstressareaisdetermined,andcarryontheimprovementofthecorrespondingstructure.Bytheendofthe80s,JapanIsuzucompanieshaveallaspectsofthefiniteelementmethodisappliedtoeverypartofbodydesign.Andhasawell-knownJapanesecompanybyusingthefiniteelementmethodisproposedfor2.5timesfullofaxleloadofdriveaxlehousingstructureanalysisstandard.Thefamousautomobilecompanyintheconventionalfiniteelementiscomparativelymatureapplicationfield,itsresearchfocushasshiftedtononlinearanalysis,transientresponseanalysis,impactanalysisoftemperaturefieldanalysisandoptimizationdesignandanalysis,etc.DuetothefiniteelementanalysissoftwaresuchasANSYSwasintroduced,andiswidelyappliedinengineeringpractice,inrecentyears,manyautomobilecompanyandscientificresearchinstitutionsjointofdriveaxleshellfiniteelementanalysis.

2.1Staticstructureanalysis

"Theautomobiledriveaxlebridgeshellundertheconditionofstaticfiniteelementanalysisundertypicalconditionswasdescribed,andthestaticstructureanalysisofdriveaxleshell,theanalysisofdriveaxleshellhascertainreferencevaluefordesignimprovement,buttheliteratureisjusttosimplifythestructureofdriveaxlehousingforthestaticanalysis,theresultsoftheanalysishascertainerror."Dumptruckrearaxleshellfiniteelementstresscalculation"comparetheoriginalmodelandthereinforcementmodelinvarioustypicalworkingconditionsofthestaticstructureanalysis,fullyembodiestheadvantageoffiniteelementmethod（fem）andquick,economicandenvironmentalprotection,providesthebasisforthedriveaxlehousingstructureimprovementdesign;"ZL50wheelloadertypeweldingdriveaxleshellvibrationmodalanalysis"invarioustypicalworkingconditionsareintroduced,thestaticstructuralanalysisofthedriveaxleshell,gotthestresscontoursandstraincontours,andmakeevaluationonitsstructureandperformance,buttheobjectofstudyisjustdriveaxleshell,evaluationofthelackofintegrity."AutomobiledriveaxlehousingbasedonANSYSfiniteelementanalysisof"statedtheapplicationoffiniteelementmethod,ANSYSsoftwareoffiniteelementanalysiswascarriedoutonthedriveaxlehousing,andtheanalysisresultscomparedwiththetraditionaltheoreticalcalculationresults,showsmanyadvantagesofthefiniteelementmethod;"automobiledriveaxlebridgeshellfiniteelementanalysisshowsthatthenationalstandardsofdriveaxleshell,thestrength,stiffness,andthedifferentthicknessofthedriveaxleshellfiniteelementanalysis,theresultsshowthatthethicknessofseveralbridgeshellmeettheevaluationindexes.

2.2Dynamicanalysis

"AutomobiledriveaxleshellfiniteelementdynamicisanalysisofANSYSsoftwareforstaticstructuralanalysisandmodalanalysis.Throughthemodalanalysis,obtainedthelowordernaturalfrequencyandvibrationmode,andtheexperimentalresultsarebasicallythesame."Driveaxleintegralfiniteelementdynamicsimulation"describesthetestdataisonlyonthesurfaceofthedriveaxleshellvibration,dynamicanalysismethodisthedataonthedriveaxleshellunitwithinthenode,makeupthelackofexperiment,andprovidesresearchfoundationforvibrationnoise."MinidriveaxleshellstructuralstrengthandmodalanalysisbyANSYSmodalanalysiswascarriedoutonthedriveaxlehousing,andobtainedthelow-ordermodalfrequenciesandtheircorrespondingvibrationmode,analyzestheresults,driveaxleshelldynamicdesignstandard.

2.3Fatigueanalysis

Driveaxleshellinordertomakeuseofthefiniteelementsoftwarestaticstructureanalysis,modalanalysisandtheanalysisofthefatiguestrength,fatiguelifeofdriveaxleshelldistribution,andtheservicelifeofthemostdangerouspointvalue;"Automobiledriveaxleshellundertheactionofrandomloadfatiguelifeforecast"driveaxleshelltomakeuseofNastranstaticstructuralanalysisandfatigueanalysis,thefatiguelifeofdriveaxleshelldistribution,andtheservicelifeofthemostdangerouspointvalue,andcomparedwiththebenchfatiguetestdata,thedataisconsistent.Driveaxleshellstomakeuseofthefiniteelementmethodoffatigueanalysis,driveaxleshell,thedistributionoffatiguelifeandthelifevalueofthemostdangerouspoint,providedthebasisforitsimprovement.

2.4Optimizationanalysis

Vehicledriveaxleshelldynamicoptimizationdesignbasedonparametricdriveaxlehousingforthereliabilityoptimization,onthebasisofthis,adheretotheprincipleofoveralllightweight,localreinforcement,continuesizeoptimization,theresultsnotonlylightweighteffectisobvious,andguaranteeitsmechanicalperformance.Driveaxlebridgeshellfiniteelementanalysisandstructureoptimizationbyusingfiniteelementsoftwareforstructuralanalysis,andputforwardimprovementonthebasisoftheresultsoftheanalysis,againcarriesontheanalysis,comprehensiveevaluationoftheresultsoftheanalysis,aftertheeffectivenessoftheproposedimprovementmeasures.Tosumup,inrecentyears,withthedevelopmentofthecomputer,thefiniteelementtechnologygraduallymature,expandingitsapplicationfield,applicationoffiniteelementmethod（fem）todriveaxledesign,caneffectivelyshortenthedevelopmentcycle,reduceproductioncost,andimprovecompetitiveness.

3Finiteelementmodels

Createabridgeshellentitymodelisapriorityforthefiniteelementanalysisonit.Becauseitsstructureiscomplex,irregularsurfaceismore,directlyusingANSYSWorkbench'sownentitymodelingmoduleofdriveaxleshellmodelcreatedthereisabigdifficulty,therefore,inthispaper,withtheaidofSolidworkssoftwarestrongmodelingability,createphysicalmodelofdriveaxlehousing.Whenestablishingfiniteelementmodel,whichrequiresittoreflecttheimportantmechanicalpropertiesofthemodelitself,andUSEStheappropriateunittypes,trytodecreasethenumberofunits,inordertomakesuretogetaprecisefiniteelementcalculationresultsaswellasshortenthecalculationtime,sotosimplifysomeoftheminor,thedangerousstructures,whileretainingtheoriginalstructureofdriveaxleshellbody,makeitscanstillreflecttheactualstructureofthemaincharacteristicsandmechanicalcharacteristics,inordertomeettheserequirements,setupthemodel,themodeliscorrect,geometricelements,onthebasisofrelevantandmechanicalpropertiesofthemodelunderthepremiseofdonotchange,itsstructureisnecessary.Forbuildingsolidmodelismadeupofdriveaxlehousing,leafspring,platespringandassemblymodeliscomposedofmainreducershell.Driveaxlehousingisstampingsteelweldedintegral,including:

bridgeshellbodyandaxletube,bridgeshellbodymadeofsteelplatestampingwelding. 

4Bridgeshellfiniteeleme