汽车磁流变减振器的静动态特性分析及有关概要.pdf

机 床 与 液 压 Mar．2013 HydromechatronicsEngineering Ve1．41 No．6 DOI：10．3969／j．issn．1001—3881．2013．06．002 StaticandDynamicCharacteristicAnalysisfor VehicleM RF Damper YAN Zhanhui ，GUAN Tieying SchoolofMechatronicsEngineering，ChangchunInstituteofTechnology，Changchun130012，China Abstract：AnMRFdamper’smechanicalstructurewasputforwardbasedon itsworkingprinci— pie，and itsweaklinkswerefoundoutbyFEM．Moreover，thispaperanalyzedthestaticanddy- namiccharacteristicsandoptimizedthemechanicalstructure．Thepre-optimizedand post-opti- mizedsimulationresultsshowedthatthevibrationamplitudevalueofdampergotdecreasedby 35％ whenthelow frequencysparkexists，anditprovidesabasisforthenew typevehicleMRF damper’sdesign． Keywords：MRFdamper，staticcharacteristic，dynamiccharacteristic parisoncriterion in view ofit，deeplyanalyzeMRF 1．Introduction compressibility and its hysteresis characteristic， shearingforce--velocityandoil--gasmixtureowing to Magnet-RheologicalFluid(MRF)isanew in— desaturation(densification)effect．3)Reserachnew telligentengineeringmaterial，itcanchangefrom liq— stabilizeranditsapplicationtoMRF． uidtosolidorrfom solidtoliquidatmoment(10 Itisstillatan elementary study stageofrthe ms)，andvarywidely，soitcanbeusedindesigning field in China，sotoresearch design principleand somenewtypedampers[1-4]andimprovingsecurity experimentdeeply，developMRFdamperofperfomr — andstabilityofsuspensionsystem．Automobilemanu- ancequality，moderateprice，itisakeytoapplica— faeturersandresearchinstitutionsputanew premium tionandisofimportantmeaningtodevelopintellig