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《汽車懸架系統(tǒng)的振動(dòng)特性分析與半主動(dòng)控制方法研究》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、天津大學(xué)碩士學(xué)位論文汽車懸架系統(tǒng)的振動(dòng)特性分析與半主動(dòng)控制方法研究姓名：葉智超申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：振動(dòng)與控制指導(dǎo)教師：賈啟芬20070601ABSTRACTAtpresent，semi．a(chǎn)ctivecontrolsuspensionsystemshavereceivedagreatdealofattentioninacademeandindustrialcirclestoimproveridecomfortandroadholdingandhandingstability．Thedamperw
2、ithdynamicallyvariabledampingpropertieslSoneofthekeyelementsforsemi．a(chǎn)ctivesuspensionsystems．Magneto·rheologicalfluiddampershaverecentlyemergedasenablingtechnologyforimplrmentingsemi．a(chǎn)ctivecontrolinvarietyofapplicationbecauseoftheirmechanicalsimplicity
3、,lowoperatingpowerrequirements，environmentalrobustness，anddemonstratedpotentialfordevelopingforcessufficientforapplications．Inthedissertation，astate．of-the．a(chǎn)rtsemi．a(chǎn)ctivecontrolsuspensionsysteminwhichtheMRdampersareused雒thesemi．a(chǎn)ctivecontrolactuatorsh
4、aSbeenproposedanddeveloped．Thetheoreticallyanalyticalandsimulationareconductedtocharacterizethedynamicalperformanceandtodevelopthesemi．a(chǎn)ctivecontroltechnologyoftheMRdampingsemi．a(chǎn)ctivesuspensionsystem．ThemainpartsincludedinthethesisareaSfollow：1．Arevie
5、wofthenonlineardynamicmodelingandsemi—acWecontrolofthevehiclesuspensionsystemsbasedonMRathomeandabroadWaSgiven，itpointsoutthathighdotsmodelingandminglecontrolmethodalecurrentorientationandtrend．2．Introducemanyparametermodelsofmagnetorheologicaldampers
6、，throughanalyzingSigmoidmodelusedinthetextnumerically,itrevealstheinfluenceoftheparameterstodamperpowerofmagnetorheologicaldamper．3．Bysineexcitement,theequationsof2一dofs—suspension—systemweresolvedbytheequilibrationtheory,thatwerevalidatedbynurnercalc
7、alculation。DynamicalcharactersintimeandfrequentyieldandtheinfluenceoftheSigmoidmodel’Sparameterswereanyzingwiththesuspension．Theinfluenceofthemajorstandardofthesuspensionsystem’scapabilitywasalsoanalyzingwiththesubmitpowerthatcanbecontrolled．ThebaSict
8、heoryofthecontrolsystemdesignwassuppliedowingtotheanalyseofnonlinearvibrationmechanisminthesemi-activesuspensionsystems．4．Buildingasemi．a(chǎn)ctivenonlinear8-dofsintegritysuspensionsystemmodel，whichsimulatingtherunontheroadrealitilyandthe也eridecomf
