基于CATIA与ADAMS微型电动汽车前悬架优化设计

The optimization of micro-electric vehicle front suspension system based on CATIA and ADAMS

针对国内所研制的微型电动汽车具有转向沉重、轮胎磨损严重等问题,对唐山市电动汽车重点实验室前期研制的微型观光旅游电动汽车进行了深入研究.在实体建模软件CATIA中建立前麦弗逊独立悬架虚拟样机,并测量出各零部件的安装空间硬点坐标.以所测量得到的数据为基础,在多体动力学分析软件ADAMS中建立前麦弗逊独立悬架系统.利用汽车专用Car模块对此样机进行平行轮跳动实验,得出悬架参数变化曲线,并对其进行迭代优化和结构改进.结果表明优化后的悬架系统使汽车在行驶时降低了轮胎的磨损、使转向灵活轻便、有利于电动汽车保持行驶的直线性等.

Aiming at the situation that the developed domestic micro-electric vehicle with steering heavy, serious wear of tire, we studied the micro tourism electric vehicle of Tangshan electric vehicle key laboratory. We established the former Macpherson independent suspension virtual prototype in solid modeling software CATIA, then measured the installation space of each component of the hard point coordinates. Building the former Macpherson independent suspension system in the multi-body dynamics analysis software ADAMS with the measured data. After getting the change of suspension parameters by doing the parallel round beating experiment in the special Car module, we optimized and improved the struc- ture. The results show that the suspension system optimization of the car in the road reduced the tire wear, made the steering more flexible and portable and ensured the ability of the car to move in a straight line and so on.