汽車鋼板彈簧計算模型研究.pdf

1、分類號——UDC——密級學(xué)校代碼!!!!!武淫理歹大薯學(xué)位論文題目汽奎塑趣登簧讓簋搓型硒塞英文題—ResearchontheCalculationM—odelofAutomobileLeafSpring研究生姓名超堡丕指導(dǎo)教師姓名—韭位蠱一職稱—熬—i篁_學(xué)位單位名稱武這堡王太堂郵編壘3QQ2Q申請學(xué)位級別鱟主學(xué)科專業(yè)名稱扭越劍造殛墓自邊絲論文提交日期2QQ三生三目論文答辯日期學(xué)校授予單位答辯委員會主2005年5月日墓墨堡王奎堂堡主蘭堡

2、笙蘭AbstractLeafspringisaveryimportantcomponentofanautomobileWhetheritsdesignsuccessornotisakeyfactorthatdecidesthedesignlevelofthewholevehicleItnotonlytakesthefunctionoftransferringtheforces，butinfluencestheridecomfortand

3、safetyalsoOnaccountofitsgeometrynonlinearcontactnonlinearetc，theprecisedesignofleafspringbecomesdifficultThedevelopmentofadvancedcontactdynamicsandCAEtechnologymakesitpossibletosolvethisproblemInthisdissertation，theautho

4、rstudiestheconventionaldesignmethodsofleafspringandvariouscalculationmodels，introducesthebasicassumptionsandcalculationformulaeofpointpressuremethod，commoncurvaturemethod，combinationmethodandfiniteelementmethodInaddition

5、，thedissertationdiscussesmodemdesignmethodCAEtechnologyandintroducesitsmeaningsandapplicationsTheoptima／mathematicalmodelsformulti—leafspring，taperleafspring，variablerateleafspringandtwo—stagecompoundleafspringareestabli

6、shedUsingoptimumdesignmethod，thesespringsareoptimizedandsomeengineeringexamplesaregivenTheresultsshowthatthespringhastheminimumweightwithrequiredstrengthandstiffnessTheoptimizationmethodimprovesdesignefficiencyofleafspri

7、nggreatlyThebasicanalysismethodsofadvancedcontactdynamicstheoryaresummarizedConsideringlargedeformation，interleaffrictionandcontactsimultaneouslytheFEAmodelofonefrontleafspringisbuiltusingANSYSbasedonnonlinearfiniteeleme

8、ntforcontinuaandstructuresStressdistributionandstiffnessareobtainedTheprecisionofspring’scalculationmodelisimprovedAtthesametime，aprecisedesignmethodforleafspringusingAPDLisproposedTheparameterizedmodelofsingletaperleafs