“梦想4.0号”赛车行驶系设计（含UG三维图）

资源目录

“梦想4.0号”赛车行驶系设计（含UG三维图）.rar

开题报告.pdf---(点击预览)

外文翻译.pdf---(点击预览)

外文原文.pdf---(点击预览)

任务书：中北大学“梦想4.0号”赛车行驶系设计.pdf---(点击预览)

中期报告.pdf---(点击预览)

中北大学“梦想4.0号”赛车行驶系设计.pptx---(点击预览)

中北大学“梦想4.0号”赛车行驶系设计.pdf---(点击预览)

bishezongzhuang.stp

压缩包内文档预览：

编号：6821929 类型：共享资源大小：17.08MB 格式：RAR 上传时间：2017-12-30 上传人：优*** IP属地：广西

85
积分

版权申诉 word格式文档无特别注明外均可编辑修改；预览文档经过压缩，下载后原文更清晰！ 立即下载

关键词：: 梦想赛车行驶设计 ug 三维

资源描述：

摘要
随着2010 年我国开始举办大学生方程式赛车比赛以来，越来越多的高校开始了对
FSAE 赛车的研究、制造与调试。到2017 年，我国大学生方程式汽车大赛由刚开始的20
多支车队发展到了80 多支。为了我校行知车队在2017 年10 月襄阳举办的第八届中国
大学生方程式汽车大赛中取得优异的成绩，本文对新一季的“梦想4.0 号”赛车的行驶
系统进行了设计与优化。根据2017 年方程式大赛规则，结合以往设计经验，对“梦想4.0 号”赛车悬架和
车架进行设计计算。在悬架方面，对悬架类型进行了选型，选定车轮定位参数以进行了
悬架几何设计和刚度与阻尼的计算。在车架方面，基于人机工程学和赛车总布置要求，
对车架进行了设计。然后利用CATIA 软件对悬架总成和车架进行了三维建模。利用
ADAMS/Car 对车轮定位参数以及侧倾中心高度进行了仿真，分析各参数随轮跳的变化规
律，找出其不合理的性能参数，用ADAMS/insight 对其进行多目标优化。并用ADAMS/Car
对车轮中心刚度、乘适刚度、侧倾刚度和传动比进行仿真，仿真结果和理论设计计算进
行对比，验证理论计算的正确性。用ANSYS 软件对悬架关键零部件摇臂进行了有限元仿
真分析，验证其强度是否符合要求。对于车架的分析，本文用ANSYS 对车架进行多种工
况下的强度分析，以及进行了扭转刚度、弯曲刚度的仿真分析与计算，结果表明“梦想
4.0 号”赛车车架符合强度与刚度要求

目录.jpg

目录1.jpg

正文内容1.jpg

正文内容2.jpg

正文内容3.jpg

正文内容4.jpg

正文内容5.jpg

正文内容6.jpg

正文内容7.jpg

正文内容8.jpg

资料总预览.jpg

总装配图.jpg

内容简介：: ProcediaEngineering150(2016)128012861877-70582016TheAuthors.PublishedbyElsevierLtd.ThisisanopenaccessarticleundertheCCBY-NC-NDlicense(/licenses/by-nc-nd/4.0/).Peer-reviewunderresponsibilityoftheorganizingcommitteeofICIE2016doi:10.1016/eng.2016.07.288ScienceDirectAInternationalConferenceonIndustrialEngineering,ICIE2016SuspensionKinematicsStudyoftheFormulaSAESportsCarS.Chepkasov,G.Markin,A.Akulova*UralFederalUniversity,19Mirastreet,Yekaterinburg,620002,RussiaAbstractInthisarticlethedesignofthesuspensionofasportscarwiththeclass“FORMULASAE”isconsidered.Asuspensiondoublewishboneistakenasthebasis.Themainrequirementstothecharacteristicsofthesuspensionofthecarofthisclassareformulated.Calculatedsuspensionschemeisadduced.Themathematicalmodelfordeterminingthepositionofthesuspensiondependingontheangleoftheupperarmhasbeendrawnup.TheanalysisandthechoiceofthegeometricparametersofthesuspensionofasportscarwiththeclassFORMULASAEwerecarriedout.2016TheAuthors.PublishedbyElsevierLtd.Peer-reviewunderresponsibilityoftheorganizingcommitteeofICIE2016.Keywords:Racingcar;suspension;formulaSAE;drivability.1.IntroductionInourdaysthemostpopularautomotiveeventsintheworldareracingFormula-1.Thecarsthatarebuilttoparticipateinthesecompetitions,inadditiontotraction-speedcharacteristicshavethehighestlevelsofcontrollabilityisnecessarytoensuremaximumspeedcorneringandsafetypilotwhendrivingatextremespeeds.Theneedtoovercomethecurvedsectionsofthetrackathighspeedrequiresengineerstosolveadditionaltasksassociatedwithperformancehandling,stabilityandsafety.Whenthevehicleturns,thereareforcescausingthedemolitionandrollofthecar,inordertominimizethenegativeconsequencesofwhichneedtobetakenintoaccountparameterssuchasthecharacteristicsofthetire,thekinematicsofthesuspensionandsteeringanddampingcharacteristicsofthesuspension.Asaconsequence,theresultonthecompetitionofacardependsonthekinematicsofitssuspension.*Correspondingauthor.Tel.:+79502027731.E-mailaddress:79502027731ya.ru2016TheAuthors.PublishedbyElsevierLtd.ThisisanopenaccessarticleundertheCCBY-NC-NDlicense(/licenses/by-nc-nd/4.0/).Peer-reviewunderresponsibilityoftheorganizingcommitteeofICIE20161281S.Chepkasovetal./ProcediaEngineering150(2016)12801286WhendesigningthesportscarclassFORMULASAEauthorsfacedwiththeneedtooptimizethegeometricparametersofdoublewishbones,foritwasdevelopedamathematicalmodelofit,performedtheanalysisandselectionoftheoptimumgeometricalcharacteristics.2.ThekinematicsofthesuspensionofasportscarSuspensionofasportscarshouldprovidetheproperkinematicsofthewheelsofthecarandhaveaminimumweightoftheunsprungparts.Almostalloftheracingandsportscarsequippedwithsuspensiondoublewishboneinconnectionwiththeiroptimalkinematicparameters.Thelargesizeisadisadvantagewheninstallingthesuspensionofthistypeofcarsintendedfordailyuse,however,whenitisusedoncarsformulatypeitbecomesanadvantage,sinceitwouldchangethetrackwidthofthecarandresistrollover,regardlessofthesizeandstructureoftheload-bearingframework.Whenchangingtherelativepositionofdoublewishbonessuspensionlevers,changestheheightofthetransverseandlongitudinaltiltofthecar,sothatitisconsideredthatthistypeofsuspensionisabletoprovidetheperfectkinematicratio.Ontheotherhand,thechangeindistancebetweenthewishbonesaffectsthechangeofforcesactingontheguidedevicesandhinges.Accordingtotherules1hasbeentaskedtoselectthegeometricparametersofdoublewishbonescar(Fig.1).Fig.1DiagramofasportscarclassFORMULASAEItisbelievedthatthesuspensiondesignissuesareamongthemostinterestingfortheautomotiveengineers,becausetheyneedcreativesolutionsandagoodknowledgeofengineeringsciences.GreatcontributiontothestudyoftheissuessuspensionkinematicsintroducedProfessorJ.Reimpel,inhisbooksmorefullyreflectthevariousaspectsofthedesignofthechassisofthecar,aswellasdataforvariousvehiclesandformulatedkeyrecommendationstothekinematicdependences2,3.AmongdomesticauthorsdistinguishI.N.UspenskyandA.A.Melnikova4,whichsetsouttheissuesofselectionandcalculationofelastic-dampingelements,maderecommendationstothechoiceofthecharacteristicsofthesuspension,dependingonroadconditions.Thesource5providesageneralalgorithmforselectingparametersofthesuspension,formulatedthebasicloadmodes.Also,inthepreparationofthemathematicalmodelusedrecommendationsandsomeoftheapproachessetoutin6.RequirementsforthesuspensionofasportscarclassFORMULASAE:xKamberangleshouldvarywiththeanglethecross-rollthecar.Sothatwhenthevehicleturns,thesuspensionprovidesaconstantcontactpatch.Thisisnecessarytoallowthetransmissionoflargelateralforcesandmoreuniformtirewear1282S.Chepkasovetal./ProcediaEngineering150(2016)12801286xTrackchangeduringthecourseofthesuspensionshouldbesmallandbeintherange5-10mmtomaximizecontactwiththeroadwheelsxThelengthofthepintleshouldbethemaximumpossibleunderthetermsofthelayouttoreducereactionsinjointsoflevers3.MathematicalmodelInourcase,forconstructivereasons(forthepurposeofrationalplacingontheframe),thesuspensiontransmitsverticalforcesontheelasticmemberthroughthethrustandrockerarm,itselfresilientmemberislocatedatthebottomoftheframe.Inaddition,thefollowingassumptions:suspensioncomponents(exceptsprings)areconsideredtobeabsolutelyrigid.Thismathematicalmodelisnottakenintoaccountthekinematicsofthepusher,inviewofcomplexityofaconclusionofformulasthisquestionisleftforfutureresearch.Fig.2.Estimatedschemeoffrontsuspensionkinematics.Attheinitialstage,takentheoriginaldimensionsofthesuspension.Theinitialdataareconsideredcoordinatesmountingarmtotheframe,thelengthsofthearmsandpintles,thelengthofdiskoffset,thecamberangleintheinitialpositionandtheangleofinclinationofthetransversepintle(Fig.2).ThefollowingsymbolsareusedinFig.2:Zu,yuhorizontalandverticalcoordinatesoftheupperarmjointrespectively;zl,ylhorizontalandverticalcoordinatesofthelowerarmjointrespectively;zpin.u,ypin.uhorizontalandverticalcoordinatesofthehingepintleoftheupperarm,respectively;zpin.l,ypin.lhorizontalandverticalcoordinatesofthehingepinofthelowerarm,respectively;zh,yhhorizontalandverticalcoordinatesofthepointO,respectively;zk.c.,yc.c.respectivelyhorizontalandverticalcoordinateofthecenterofthecontactwheel;lpthelengthofthepintle;lofthelengthofthewheeloffset;lulengthoftheupperarm;llthelengthofthelowerarm;theinclinationangleoftheupperarm;theangleofinclinationofthelowerarm;ltheangleofinclinationoftherod;.angleofinclinationoftheaxisofpintletothevertical.1283S.Chepkasovetal./ProcediaEngineering150(2016)12801286FortheabovecalculationschemewasmadeamathematicalmodelinMathcadusingthemethodsoftheoreticalmechanicsandthetheoryofmachinesandmechanisms.TocheckthecalculationswasbuiltkinematicsinSolidWorkstiedtoMicrosoftExcel.Theproposedmathematicalmodelhasonedegreeoffreedom.Asamodifiableparameterselectedangleoftheupperarmtothehorizontal.Thehorizontalcoordinateoftheupperendoftheleverzpin.ucalculatedbytheformula:.cospinuuuzlzE(1)Theverticalcoordinateoftheupperendofthelevermpin.ucalculatedbytheformula:.sinpinuuuylyE(2)Theverticalcoordinateattheendofthelowerarmypin.lhasrathercomplicatedtrigonometricdependenceontheparameters,soforthesakeofsimplicity,additionalvariablesareintroduced(Formula4-10):.2pinldDye(3).22pinupinuaacdzybb(4)24Ddeh(5)21aeb(6).pinulayy(7).pinulbzz(8)222222.2lpllpinupinullzyzyc(9)2222.2ppinupinupinucchlzzybb(10)Thehorizontalcoordinateofthelowerendoftheleverzpin.lcalculatedbytheformula:.pinlpinlcayzb(11)Theangleofinclinationofthelowerarmcalculatedbytheformula:1284S.Chepkasovetal./ProcediaEngineering150(2016)12801286.arccospinlllzzlJ(12)Theangleofinclinationoftheaxisofpintletothevertical.calculatedbytheformula:.arcsinpinlpinulzzlD(13)Thecamberangle&calculatedbytheformula:00()ZZDD(14)TheverticalcoordinateofthepointOyh:0.cos2lpinllyyD(15)ThehorizontalcoordinateofthepointOzh:0.0sincos()2lpinuflzzlDD(16)Verticalcoordinateofthecenterofthecontactyc.c:.0coskkKLyyRZ(17)Thehorizontalcoordinateofthecenterofthecontactzc.c:.0sinkkKLzzRZ(18)whereRklstaticwheelradius.Track:.2ccBz(19)Changingtracks:0BBB(20)Consequently,toobtainamathematicalmodel,itispossibletoplotchangesincamberandtrack,dependingontheprogressofthesuspension,settingitsgeometricparameters.4.TheselectionofgeometricparametersofthesuspensionofasportscarclassFORMULASAEThenextstepistheselectionofthegeometricalparametersofthesuspensionoftheprojectedcar.Onthebasisoftherulesandconditionsofthelayout,theauthorsestablishedthefollowinglimits:xSuspensiontravelis60mm(30rebound,compression30)1285S.Chepkasovetal./ProcediaEngineering150(2016)12801286xCoordinatesthesupportofthelowerarmtotheframedefinedbytheconditionofthecarlayout,soforfurthercalculationsarepermanentxThelengthofthepintleisselectedtakingintoaccounttherequirementssetforthandsodonotchangexInitialcamber-31Accordingly,therequiredcharacteristicscanbeobtainedbychangingthemountingpointsoftheupperarmtotheframe,achangeofthelengthsoflevers,varyingtheangleofinclinationofthekingpin,tiltlevers.Inthispaper,asanexample,considertheeffectofthelocationofthesupportoftheupperarmandtheangleofinclinationonthecamberanglecharacteristicsandtrackchangesdependingonthesuspensiontravel.Geometricalparametersofsuspensionhavebeencalculatedforthethreevariantsofthepositionoftheupperarmbyusingformulas(1-20),theresultsisshowninTable1andthegraphs(Figure3).Table1.Resultsofcalculation.Z(mm)Y(mm)0()Suspensiontravel(mm)-30-20-1001020302703107,2B(mm)1341134413461349135113521353B(mm)-8-5,2-2,6023,24&()0,0470,161-0,16-0,52-0,92-1,33-1,732683313,8B(mm)1344134613471349135013501351B(mm)-5-3,1-1,5011,62&()0-0,16-0,34-0,52-0,75-0,97-1,232673540B(mm)1346134713481349134913491349B(mm)-3-2-10000&()-0,49-0,5-0,52-0,52-0,57-0,63-0,71Infigure3areshownthreecurves,whichillustrateinterrelationoftheinclinationoftheupperarmandcharacteristicsofstudysuspensionduringsuspensiontravelthatallowsgraphicallycompareparametersofseveraloptionsofsuspensionkinematic.Fromthesegraphsitcanbeconcludedthatathirdoption(=0)oftheinstallationoftheupperarmismorefullysatisfytherequirementssetforthinthisarticle,sincethetrackremainsconstantduringcompressionmotionanditschangeduringreboundisatapermittedrange.Thecamberanglethusisnegativeandalmostunchanged.Itsnecessarytonotethatresults,whichwerereceived,arevalidonlyforinitialconditionsdescribedaboveinthisarticle.5.ConclusionInconclusion,theauthorswouldliketonotethattheresultingmathematicalmodelisuniversalandallowsdefiningthekinematicsofanydoublewishbonessuspensionandcanbeappliednotonlyforsportscarsFormulaSAE.Thenextstepisthecompletionofthemodelandwritingacomputerprogram,whichwouldallowplottingthechangesofcamberandtrackcurvesfromgeometricalparameters,aswellasassessingtheimpactofch

温馨提示:
1: 本站所有资源如无特殊说明，都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
2: 本站的文档不包含任何第三方提供的附件图纸等，如果需要附件，请联系上传者。文件的所有权益归上传用户所有。
3.本站RAR压缩包中若带图纸，网页内容里面会有图纸预览，若没有图纸预览就没有图纸。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 人人文库网仅提供信息存储空间，仅对用户上传内容的表现方式做保护处理，对用户上传分享的文档内容本身不做任何修改或编辑，并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容，请与我们联系，我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。

人人文库网所有资源均是用户自行上传分享，仅供网友学习交流，未经上传用户书面授权，请勿作他用。