欢迎来到天天文库
浏览记录
ID:52982449
大小:2.43 MB
页数:9页
时间:2020-04-05
《抗俯仰液压互联悬架三轴重型货车动态特性.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、Vo1.1NO.4第1卷第4期汽车工程学报Sept.201120t1年9月ChineseJournalofAutomotiveEngineering抗俯仰液压互联悬架三轴重型货车动态特性丁飞,张农,韩旭湖南大学汽车车身先进设计制造国家重点实验室,湖南,长沙4100822.悉尼科技大学电机、机械与机械电子学院,悉尼,澳大利亚2007)建立青耦合机械系统和液压系统的动力茎学方程,该特征方程以机械系统的位移和运厦以及L械与敝座衲。一。开。匝/J作为状态矢量。对比分析HIs对车体恢复力和力矩及车体振动固有频率的影响。结果表明,液压互联悬架HIS为车体
2、提供较大的抗俯仰力矩。自由振动分析表明,HIS改变了车体垂向和俯仰振荡中心位置,且增加了车。体釜俯登仰模态对应的固有频率,同时车体垂向跳动模态对应的固有频率几乎保持不变。关键词:液压互联悬架(HIS);舒适性;抗俯仰悬架;三轴货车文献标志码:ADOI:10.3969/j.issn.2095—1469.2011·04022中图分类号:U463.33+5CharacteristicsofaTri.axleHeavyTruckFittedDynamicHydraulicallyAnti.pithInterconnectedSuspensionDin
3、gFei2ZhangNong2,HanXu(.statekeyLaboratoryofAdvancedDesignandMmmfhcturingforVehicleBodyHunanUniversity,Changsha,Hunma41⋯T2.SchoolofElectrical,MechanicalandMechatronicSystems.,Universityotecm‘小g34syd“““⋯Abstract:Thispaperbrief1ypresentsthederivationoftheequations。fm。tionof"tr
4、i-axle眦kdwnDitchresistanthvdrau1icallyinterconnectedsuspension(HIS)system·BasedonfreebodYdagramandfluidtransferimpedancematrixmethod,thecharacteristicequationsofthismechanicallyandhydraullCallycoupledsvstemarederivedwithastatevectorincludingthedisplacementsandvelocitiesofm。
5、hanlYtmandtheDressureatthemechanical—hydraulicboundarysection.Thecomparisonanalysisofthesprungmassresponsest0roadinputsiscarriedoutbetweenthetruckswithconventionalsuspensionandhydraulcallyntercor¨1ectedsusDensionsvstem.TheobtainedresultsindicatethattheHISsystemcanprovidegre
6、atPtchrestonngmomentofsprungmass.AndthefreedecayvibrationanalysisrevealsthattheHISsystemchangesthebounceandptcnoscillationcenterofsprungmass,andtheobtainednaturalfrequenciesofbounceandPtchmodesofsprungmassmustratethatthepitchstifnessisincreasedwhilethebouncestifness1Sslight
7、lysoftened.KevwOrds:HIS;ridecomfort;pitchresistantspecificsuspension;tri—axletruckReceiveddate:2011—9-11F。undati。nitem:KeyProject。fChineseNationalProgramsforFundamenta1ResearchandDevel。pment(2010CB832705);Nti。mls。i。“。。F“dofChinaforDistinguishedYoungScholars(10725208)416汽车工程
8、学报第1卷Thebounceandpitchvibrationbehaviorofforpassengercarsthroughprovidingadditiona
此文档下载收益归作者所有