大型鈦合金空心推力球軸承特性研究.pdf

1、沈陽航空工業(yè)學院碩士學位論文大型鈦合金空心推力球軸承特性研究姓名：蘇新偉申請學位級別：碩士專業(yè)：機械設計及理論指導教師：高霽20090113沈陽航空工業(yè)學院碩士學位論文————————————————————————————————————————_————_—————————一———————————————————————————————————一AbstraetAkindoflargeTitaniumalloythrusthollo

2、wballbearingisplannedtobedevelopedformesakeofthed鋤andofthenationaldefenceThisthesisanalysesacontactproblemofthrustballbearingbasedonANSYSwhichisakindoffirdteelementsoftwareSomeofconclusionsinthethesiscanbeusedasthefounda

3、tionoffiniteelementanalysisaboutthrustballbearinginmorecomplexenvironment，willbecomeprimaryworkaboutfindingnewrulesandnewanalysismethodswhicharefitforthethrusthollowballbearingTherouteofanalysisisfromsimplicitytocomplica

4、tion，theoriesresearchandfiniteelementresearchverifyingmutuallyFirstlybuiltingupafiniteelementmodelofgeneralsteelthrustballbearingisanalysizedThen，boundaryconditionsandthefiniteelementmodelareprovedtobesuitablebythesimula

5、tionresultsabIoutcontactshape，sizeandstressofthrustballbearingswhicharecomparedwithresultsfiomHertz’ScontacttheorySecondlythelargesteelballbearingmodelisconvertedintopararnetricmodelwiththesamesizeastheTia110yballbearing

6、ElementaryratedloadisfiguredoutDeformationsoftheballandracewavarecalculatedbyfiniteelementmethodwithelementaryratedloadTheilefonnationsarethemostmaximumdeformationsextentofTialloyballbearingaccordingtothedefinitionofelem

7、entaryratedloadAtlast，thefiniteelementmodelsofthelargeTi。alloytlmastballbearingwithsolidrollerandhollowrollerrespectivelyarebuiltbymodifyingsteelmodelDarametersThelawsaboutstressandstrainofhollowballbearingarefoundbycomp

8、撕ngtheresultsfromfiniteelementmodels、aithlightandheavyloadOnthisfoundationthefinitedementanalysismethodiscombinedwithoptimizationtheorymostsuitablehollownessisgottenbyoptimizationdesignaboutthehollownessofballasdesignvar

9、iable，thebiggestdeformationaboutrollerandracewayasstatevariables，thevolumeofhollowrollerasobjectiveTheconclusions齜easfollows：1Asthehollownessislessthan50％，theperformanceofstressandstrainaren，talmostdifferentbetweenthrust