重型卡車輪轂軸承有限元仿真分析.pdf

1、河南科技大學(xué)碩士學(xué)位論文重型卡車輪轂軸承有限元仿真分析姓名：張磊申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：機(jī)械制造及其自動(dòng)化指導(dǎo)教師：王玉金夏新濤@河南科技大學(xué)碩士學(xué)位論文IISubject:AnalysisonHubBearingofHeavyloadingTrucksbyFEMSpecialty:MechanicalManufactureAutomationName:ZhangLeiSupervis:WangYujinXiaXintaoABSTRAC

2、TStressisusuallyconcentratedatthetwoendsofrollerwhenrollingbearingisloadedespeciallyoverloaded.Concentratingstressinfluencestheusinglifeofbearingasanimptantfact.Indertoimprovethissituationwecanamendthegeneratix’sfmsofrol

3、lerraceway.Inthispapertheperfmanceofhubbearinghasbeenstudiedthishubbearing(taperedrollerbearing30222P6)isusedonoverloadingtrucks.Crowninganalysisoftaperedrollerbearingisacontactquestionessentially.Intheviewofmathematicsm

4、echanicscontactquestionisaverycomplicatedquestionespeciallyfnonlinercontactquestion.InthispaperftheloadingsituationoftaperedrollerbearingIbuildsomethreedimensionalcontactmodelsofrollerracewaybyusingthefiniteelementanalys

5、issoftware–ANSYS.Isolvethenmalcontactstressstraindistributionoftaperedrollersracewaystheserollersracewayshavedifferentcrowning.BytheseanalysisresultsIfindertaintheoptimalcrowningfmcrowningvalueofrollerinsideraceway.Throu

6、ghtheANSYSanalysisresultsofdifferentschemesthroughmuchtheyanalysisfatigueexperimentsfinallyIhavetheseconclusions:1.Theoptimalcrowningfmofrollerinsideracewayisanimprovedengineeringlogarithmcurvetheoptimalcrowningvalueofro

7、lleris810mtheoptimalcrowningvalueofinsideracewayis1012m.Thisschemecanensuretheeffectivecontactlengthofrollerracewayindifferentloadsremove“edgeeffect”aswell.thecontactstressdistributionofrollerracewayisequipotentreasonabl

8、e.2.Whenweanalysisthecontactstressofrollerracewaythebiggerribofinsiderollermeetsintensityrequirewelltherib’seffecttothemaximumnmalcontactstressisnotobvious.Whenweconcerntherib’seffectnotthemaximumdifferenceofnmalcontacts