基于多体动力学递推算法的电动汽车建模与仿真分析  

Multi-body dynamic modeling and simulation analysis of electric vehicle by the recursive algorithm

作　　者：李伟东[1] 胡永明[1] 韩小强[1] 汪镇涛 

机构地区：[1]大连理工大学工业装备结构分析国家重点实验室运载工程与力学学部汽车工程学院,大连116023

出　　处：《计算力学学报》2012年第3期357-362,共6页Chinese Journal of Computational Mechanics

基　　金：国家863高技术研究发展计划(2009AA04Z101);国家自然科学基金重点项目(10932003);国家973重大基础研究发展计划(2010CB832700)资助项目

摘　　要：运用多体动力学理论建立整车动力学模型已成为汽车动力学研究的重要手段。以大连理工大学汽车学院研制的某电动汽车为对象,运用多体动力学递推算法建立了包含前后悬架、车身及车轮在内的多体仿真分析模型,将前后悬架视为3个子系统,引入哑体,实现对各子系统的单独处理;同时完成了整车的快速建模与分析;将MATLAB整车仿真程序的结果与ADAMS仿真结果进行比对,二者吻合较好,验证了所建模型及求解算法的正确性。Multi-body dynamics has played a significant role in the vehicle dynamical modeling and simula- tion. In this paper, the muti-body dynamical model of an electric vehicle has been established using the recursive algorithm. The front and rear suspensions are treated as three sub-systems and virtual body is introduced such that each sub-system is able to be analyzed independently. And then the modeling and simulation of the vehicle is able to be accomplished soon. The comparison between the MATLAB simulation result and the ADAMS shows the availability and the validity of the proposed method.

关 键 词：多体系统建模 递推算法 仿真分析 电动汽车 

分 类 号：O313.7[理学—一般力学与力学基础]