基于多体动力学的悬架优化对汽车侧风稳定性影响研究  

Effect of Suspension Structure Optimization on Vehicle Cross-wind Stability Based on Multi-body Dynamics

作　　者：谷正气[1] 赵荣远[1] 杨易[1] 海贵春[1] 陈家骅[1] 向宇[2] 吴彤峰[2] 

机构地区：[1]湖南大学汽车车身先进设计制造国家重点实验室,长沙410082 [2]广西工学院汽车工程系,广西柳州545006

出　　处：《科技导报》2008年第8期48-51,共4页Science & Technology Review

基　　金：国家自然科学基金项目(50275052)

摘　　要：依据某跑车建立了整车多体动力学模型;根据析因设计理论,以提高汽车的侧风稳定性为主要目标,以侧风响应下的侧向滑移量和横摆角速度为具体评价指标,对悬架系统进行灵敏度分析;结合优化设计方法,对悬架结构进行改进,显著地改善了汽车的侧向风稳定性。A multi-body dynamics model is developed to study the cross-wind stability based on the factorial design theory. The lateral displacement and yaw rate under cross-wind are used as special evaluation indexes. A sensitivity analysis is performed on the suspension system and the optimal design method is employed to improve the structure of suspension and enhance the cross-wind stabihty of the car.

关 键 词：多体动力学 ADAMS 侧风稳定性 悬架结构优化 试验设计 

分 类 号：U461.6[机械工程—车辆工程]