某轿车前轮偏磨问题的研究及解决

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2012AGRICULTURALEQUIPMENT&VEHICLEENGINEERING504Vol.50No.420124Apr.2012doi:10.3969/j.issn.1673-3142.2012.04.012,,,,,(311228,)[],,。,,,、。,DOE,,,、。。,。[];;;[]U463.341+.4[]B[]1673-3142(2012)04-0044-03ResearchandSolutiontoSideWearofFrontWheelsonaParticularCarXUEHui-hui,LIUZong-wei,MENGXiang,LIUWei,PANZhi-jie,ZHAOFu-quan(GeelyAutomobileInstitute,HangzhouCity,ZhejiangProvince311228,China)[Abstract]Sidewearofatiremeansthatanexcessivewearononesideoccursduringdriving.Itisacommonprobleminavehicle'suse.Takingaparticularcarasanexample,thesidewearoffrontwheelsisfullyanalyzedandtworeasonsthereofarefound:toobigcamberangleandanunmatchedrelationbetweencamberangleandtoeangle.Therefore,asimulationanalysisofdynamicoperatingenvironment(DOE)isperformedforsuspensionhardpointstofindthemajorfactorstoaffectthechangerateofcamberangle.Furthermore,thesuspensionhardpointsaremodifiedbasedonsimulationresults,thusreducingthechangerateofcamberangle.Also,thematchingbetweencamberangleandtoeangleisconductedagain.Thetestresultsshowthatthesideweariscompletelyeliminated.[Keyword]tiresidewear;camberanglechange;matchingbetweencamberangleandtoeangle;optimizationdesign0(1),,。、、[1]。B,,。,15000km,50%,30%,80%,。1,,[2]。(1);(2)15000km,;(3);(4)、、、;(5)。5,,,,。1.1200,2~5。,,,:2011-11-071Fig.1Thepictureoftiresidewear504/deg/m/deg/m/mm/m/mm/m-5.4-1159.328.3-3.75-770.770-1.8-6.74468207CC-0.5-2.817.829.3RAV4-5.2-5.231.636.9-4-3.7819.539.82KCTable2ThecontrastofKCdata,。。1.2,,20,。20。4S,15000km,85%。,。1.3,。,、,:ctgθ0-ctgθi=K/Lθ0———,°;θi———,°;L———,mm;K———。,,、、,、。(-)/(—)×100%,。61,,。1.4,,,KCKC,KC,KC[3],2。5Fig.5Thecamberangleofrightfrontwheel2Fig.2Thetoeangleofleftfrontwheel3Fig.3Thetoeangleofrightfrontwheel4Fig.4Thecamberangleofleftfrontwheel:≥50%85%≥50%83%1Table1ThelimitofPer-ackermanduringsteering6Fig.6Thelineofper-ackermanchangingduringsteeringpercentackeman1000.0900.0800.0700.0600.0500.0400.0300.0200.0100.00.0-100.0-50.0050.0100.0racklenght4520122,、、。,,。,DOE,、、、、、、X、Y、Z,-5mm5mm,,3。,,,,KC,Z,4。2.5,[4],5。,,,,-5.3′-1.3′,,7.32m/km0.33m/km,。2,。30000km,,。31),。2)KC,DOE,。[1].[M].:,1989.YuZhisheng.Thetheoryofvehicle[M].Beijing:Mechanicalindustrypublishingcompany,1989.[2].[J].,2009,(8).WuGang.AnalysisandSolutiononvehicle'sfrontslantgrindproblem[J].EquipmentManufacturingTechnology,2009,(8).[3].[J].,2009,(17).Zongzhaobo.Thesolutionandanalysisonvehicle'sfrontslantgrind[J].ChinaHighTechnologyEnterprises,2009,(17).[4],.[J].,2007,(5).XuJiamin,LuZheng.Thesimpleanalysisofslantgrind[J].AppliedVehicleTechnology,2007,(5)./%/%/%/%X-22.3-1.02.73.6Y17.30.7-2.1-2.8Z226.09.6-27.8-36.3X26.20.8-2.7-1.1Y-17.2-0.61.81.0Z-230.4-7.323.79.2X-2.20.2-0.3-2.8Y1.8-0.10.22.2Z22.5-2.02.628.5X0.7-0.10.03.0Y-25.510.23.61.1Z-1.30.50.2-0.2X19.3-0.50.0-0.8Y-14.80.40.00.6Z-260.96.60.111.2X-229.80.60.01.0Y12.9-0.30.0-0.6Z240.5-6.1-0.1-10.3X0.1-0.3-0.1-3.5Y25.4-10.1-3.6-1.2Z3.6-1.4-0.50.6Zmm624.3605.3Zmm2.644.62/deg/m-5.4-5.2/deg/m-11-6/mm/m59.359.3/mm/m28.331.2/(')/(')/(m/km)-11.8-5.37.32-37.6-1.20.62-10.8-1.50.25207CC-11.4-1.30.31RAV4-13.31.23.573DOETable3TheresultofDOEanalysis4Fig.4Theresultofhardpointoptimization5Fig.5Theresultofsideslipmeasure(1987-),,,、KC、。。46

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