整车多体动力学模型的建立、验证及仿真分析.pdf

2006 ( 28) 3 Autom otive Engineering 2006( Vo.l 28) No. 3 2006062 张云清, 项 俊, 陈立平, 孙 营 (华中科技大学 CAD 中心, 武汉 430074) [ , , , M agic Formu la , , : , , , n c The Setting Up, Validation and Sim u lation of . FullV eh icleM u ltibody Dynam icsM odel g Zhang Yunqing, Xiang Jun, Chen L iping Sun Ying r Center for ComputerAided Design, Huazhong University ofScienceand Technology, Wuhan 430074 库 o 例 [Abstract] By using m ultibody dynam ics technique, a fu ll veh icle nonlinear m odel for a passenger car is 案 . set up, wh ich takes into consideration the detailed geom etric structural param eters of steering system and the non E o A e linear characteristics of rubber bushing and dam per, and uses aM agicForm ulam odel for tire. The simu lation m od C m els built are validated w ith various tests on a real veh icle w ith its hand ling stability analyzed. The simu lation result 模 show s that the non linear m ultibody m odel has a h igh accuracy. a c K eywords :Vehicle dynam ics, M ultibody dynam ics, Validation, Simulation 凯