軋輥用四列圓柱滾子軸承套圈應(yīng)力分布狀態(tài)研究.pdf

1、上海大學(xué)碩士學(xué)位論文軋輥用四列圓柱滾子軸承套圈應(yīng)力分布狀態(tài)研究姓名：劉寧申請學(xué)位級別：碩士專業(yè)：機械設(shè)計及理論指導(dǎo)教師：張鋼20070201上海大學(xué)碩士學(xué)位論文ABSTRACTABSTRACTForthedesignandapplicationofrollerbearings，thematterontheloadcapacityandlifeneedtobetakenintoennsidemtionThebearing’Sapplied

2、loadshaveinfluenceontheloadandStressdistributionwhiehfurtheraffectsthelifeofthebearingAsthemilerbearingsandtheshaftworksintheinterferencefit，themagnitudeofithavelargelyimpactonthebearing’Sstress，consequentlythusthataffec

3、tsthebearing’SlifeThepaperhasstudiedthestressdistributionofinnerringsinmostconditions，thenhascarriedontheanalysistotheinterferencefit’SinfluenceonthebearinglifeFirstinthepaperthestressproducedbytheinterferencefitbetweent

4、heinnerringandtheshaft，thesurfacecontactstressbetweentheinnerringandrollers，andthestressdistributionunderthesurfacehasbeenstudiedtheoreticallyThestressexpressionhasbeenestablishedAlso，thestudytothedistributionofstresssup

5、erpositionininterferencefithasbeendonetheoreticallythecorrespondingformulahasbeenobtained，andtheloaddistributionconsideringtherollerflexhasbeenstudied，thecorrespondingformulahasbeenobtainedNextbasedonthesoftwareMATLAB，ca

6、usedbytheinterferencefit，thehoopstress，theradialstress，thesurfacecontactstressandthesubsurfacecontactstress，aswellasthesuperpositionstresshasbeencalculatedandeachkindofstressdistributiongraphhasbeendrawnupTherebytheinflu

7、enceofthemagnitudeofinterferencefitonthehoopstressandradialstresshasbeenstudied，andthechangethatthosestressesalongtheradialdirectionhasbeendiscussedBesides，theinfluenceofappliedloadingandclearanceonsurfacecontactstressha

8、sbeenobtainedMeanwhile，thedistributionsofthemaximumshearstress，VonMisesstressanddynamicshearstresshavebeenstudied，alsothechangeshasbeenexplainedwhentakingtheinterferencefitintoaccountBasedonthestudydoneabove，theinfluence