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1、西南交通大學碩士學位論文基于磁流變阻尼器的車輛半主動控制姓名：丁海濤申請學位級別：碩士專業(yè)：車輛工程指導教師：王開文20080601西南交通大學碩士研究生學位論文第1I頁AbstractThesuspensionsystemiSacriticalcomponentthatcaninfluencethevehicularperformance．Theintelligentsuspensionsystemhasreal—timecontrolaccordingtotheroadsurfaceconditionsandthestateofvehicle’Smotio
2、n．Itsadoptionisanimportantapproachtoimprovingcomfortandsecurity．Magnetorheological(MR)semi—activesuspensionappliesMRtechnologytOcarryoutthereal-timecontrolofitsdamp．Duetoitsgoodcontrollability,widedynamicrange，rapidresponsespeed，lowoperatingpowerrequirementandcomparativelysimplestru
3、cture，MRsemi-activesuspensionhasbecomeoneofthecentralresearchsubjectsinintelligentsuspensionfield，andhasalsoreceivedconsiderableattention．Inthispaper，themethodsanddynamicalcharacteristicsofMRdamperareappliedtostudythesuspension，thecontrolstrategiesandthecontrolsystem’Sdesign．Themain
4、contributionsofthedissertationincludethefollowing：1．Thepaperexpoundsthesignificanceoftheintelligentsuspensionresearchreviewsitshistoryanddevelopment，summarizesthepresentsituationandexistingproblemsofMRfluids，MRdampersandMRsemi-activesuspensionandputsforwardthemainworkaimedattheprese
5、ntproblemsofvehicularMRsemi-activesuspension．2．Basedontheanalysisofnonlinearcharacteristicsofvehicularsuspensionsystem，thisdissertationdealswiththesemi-activesuspensioncontrolOilbasisofproposedMagnetorheological(MR)dampermodelandthetwo—degreeoffreedom(2一DOF)1／4quarter-vehiclemodel．T
6、heMRsemi-activesuspensionmodelisestablished．ThemethodofcontrolstrategyOndifferentialgeometrytheoryandfuzzycontrolstrategyisexpounded．Thedifferentialgeometrycontrollerandthefuzzycontrolleraredesigned．MRsemi-activesuspensionsimulationsystemisestablishedbyusingMatlabsoftwareanditscorre
7、spondingtoolboxes．Afteradoptingtheabovecontrolstrategies，thetimedomainresponseofsemi—activesuspensionareanalyzedbyusingnumericalsimulation．The西南交通大學碩士研究生學位論文第1II頁comparisonandevaluationbetweenthetwodifferentcontrolstrategiesarecarriedoutaccordingtothecontroleffects．3．Comparedwithtwo
8、semi．activesuspensi
