基于粘结算法的电动汽车建模与仿真  

Modeling and Simulation of Electric Vehicles Based on Gluing Algorithm

作　　者：李伟东[1,2] 胡永明[1] 胡平[1,2] 韩小强[1] 张军 

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,辽宁大连116024 [2]汽车噪声振动和安全技术国家重点实验室,重庆401120

出　　处：《华南理工大学学报（自然科学版）》2012年第12期92-98,共7页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金重点项目(10932003;11272075);国家"973"计划项目(2010CB832700;2010CB736104);国家工信部04重大专项(2011ZX04001-021)

摘　　要：为实现车辆动力学的高效精确求解,将多体动力学粘结算法引入动力学仿真求解过程中.通过对多刚体三摆机构及含有柔体部件的四杆机构进行拓扑解析、子系统分解与粘结,对粘结算法的理论与具体求解过程进行了系统说明;然后以某电动汽车为对象,运用粘结算法建立了包含前后悬架、车身及车轮在内的多体仿真模型,将整车系统分解为4个独立子系统;最后运用Matlab实现了整车的建模与仿真,结果验证了文中方法的可行性.Investigated in this paper is a gluing algorithm for the multi-body dynamic simulation, which helps to implement effective and accurate dynamic analysis of vehicles. In the investigation, first, the topologies of the muhi-body triple-pendulum system and the quadruple-pendulum system with elastic parts are analyzed, decomposed and glued, through which the theory of the gluing algorithm and the corresponding solving process are systematically illustrated. Then, the multi-body dynamic simulation model of an electric vehicle, which takes the front suspension, the rear suspension, the vehicle body and the wheel as four individual subsystems, is established based on the gluing algorithm. Finally, the modeling and simulation of the whole vehicle is implemented with Matlab. The results show that the proposed gluing algorithm-based method is feasible.

关 键 词：车辆动力学 电动汽车 多体系统 粘结算法 建模 仿真 

分 类 号：U270[机械工程—车辆工程]