基于simulink车辆主动悬架动态特性及控制的研究-机械设计及理论专业论文.docx

A B S T R A C TT IT L E : S T U D YO NC O N T R O LA N DD Y N A M ICC H A R A C T E R 口S T IC S F O R V E H !C L E A C T IV E S U S P E N S ION B A S E D O N S IM U L IN KM aj o r: T h e m e c h a n ic a l d e s ig n a n d th e o ryN a m G : J ia n b O C A O S ig n a tu re : 叼 、二boS u P e rv is o r : P ro f.X ia n g ru X l 5 ig n a tu re :A b s tra C tTh e S u sP e n sio n 15 o n e o f th e m o st im P o rt an t e o m P o n ent s o f th e v ehi e le ，w h ic h e o nn e e ts th e w h eel an d v ehi ele b od y fl ex ib ly， P lay s an im P ort ant ro le in effe cti n g th e m u ltiP le P e rfo rm an e e o f v e hi e le . M e an w h ile ，su sP e n sio n 15 a v ery e o mP lex a ss e mb ly， W h ich 15 v erydi ffi eu lt to re ac h P effe etion ，b eeau se it sh o u ld sat isfy th e re qu irernent fo r th e ri d e P er fo rm an eean d au to m o tiv e e o n tro llab ility an d stab ility. Wi th fi x ed sys tem P ar am eters，th e d e sign o f P as siv e su sP en sion sy stem mu st eom Pro m ise th e con fl ietin g requi re m ent s o f ri d e eom fo rt an d h an d lin g stab ility. T h e re fo re ， to th e v e h ie le w o rki n g in v ari o u s c o n d itio n s ， th e tra d itio n a l P as siv esu sP e n sio n h a s b e e o m e in c aP a e ity in m e e tin ge x P e e te d d e m an d s o f v ehi e le . hi o ul e r to o v erco m e th e lim itat io n s o f P as siv e su sP en sio n ， ac tiv e su sP en sio n e o m e s o u t. Th e ac tiv e su sP en sion 15 ab le to adj u st or P ro d u ee con tro llin g fo re e b etw een W h eel an d v ehi cle b o dyac c o rd in g to ro a d e o n d itio n s . 5 0 it e an re stri e t v e hi e le v ib rat io n an d im P ro v e th e P e rfo rm anc eo f Su sP en sio n