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1、同濟(jì)大學(xué)碩士學(xué)位論文輪對踏面外形計(jì)算機(jī)輔助設(shè)計(jì)方法研究姓名:葉志森申請學(xué)位級別:碩士專業(yè):車輛工程指導(dǎo)教師:沈鋼2003.3.4旦塑垡塑塑笙苧絲翌墮耍塹蘭塑蘭塑塑墅堡鹽查鯊翌塞ResearchoHthecomputeraideddesignmethodforwheelprofilesABSTRACTTheworkofthisthesismainlydealswiththedevelopmentofageneralpurposesoftw

2、areWDeslgnforthedesignofthewheelprofilesBasedoi1thetheoryofwheel/railcontactandtheprincipleofwheel/railcontactstresscalculationthesoRwareincludesthreemainmodules:designofwheelprofiles,geometrycontactparameterscalculation

3、ofwheel/railandcontactstresscalculationofwheel/railAspecificCAF(ContactAngleFunction)methodarcemployedonthedesignofthewheelprofilesArbitrarydiscreteprofilescanbeimportedforthecalculationofgeometrycontactparametersAnengin

4、eeringorientedstripmethodisusedforthecalculationofwheel/railcontactstressesWDesigusoRwarecarlbeoperatedintheenvironmentofWINDOWSandontheplatformofMATLAB。v65Itisuniquesoftwarefor也edesignofwheelprofilesFirstlythethesisdesc

5、ribesindetailthedesignmethodforwheelprofileconsideringcontactanglesandthedevolopmentprocessoftheprogramaccordingthedesignmethodThedesignmethodisprovedfeasiblebystudy011thecalculationpmcisionofprofiledesignandthechangingo

6、fwheelprofilewiththeadjustmentofcontactanglesculNeThenthethesisputsforwardtothenewcontactstresscalculationmethodforwheel/rail,whichisnamedSTRIPESBydividingtheprofilesofthewheelandrailintostripesandassumingtheelastriclydi

7、stortedvalueofcontactpointsthemethoditerativlycalculatesthecontactstressespeciallyforlllearbitrarywheel/railInordertovalidatetheruliabiblityofthecomputationalresultsofSTRIPESmethodLMtypewheelprofileand60kg/mrailheadareta

8、kenasallexamplefor出ecalculationofcontactstressbyWDesignsoRwareTimnumericalresultsbySTRIPESmethodarecumpared、ⅣimtheresultsbyHERTZmethodThecomparisonshowsthattheresultsbyS咖E8a托ⅡmeaccurateInordertov剮|i‘i時(shí)ethefeasiblityandma

9、neuverabilityofwv=igsoRwarethesottwareisusedtoanalysesseveralkindsofwheelprofiles。andtheresultsobtainedarecoherentwiththefeaturesofthesewheelprofilesFurthermore,bythissoware,takingtheLMprofileasaseed,aocwprofileisdesigne

10、dItisanalysedthattheIleWprofilehassolnetraitssuchaslittleequivalentpitcharoundthetreadevenwearetcThestudyofthisthesisshowsthatthedevelopedsoftwareisapowerfultoolforthecomputationofwheel/railgeometrycontactparameters,whee

11、YrallcontactstressandthedesignofwheelprofilesSoitisusefulnotonlyformeserviceeng:ricerstoanalyzeandcomputewheel/railcontactparameters,butalsoforthedesignerfornewwheelprofilesKeywords:Railwayvehicles,WheelprofileContactStr

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