一种新型游览车悬挂支撑系统的动力学优化设计

Dynamic optimal design for floating suspension system of new-type tourist car

针对游览车在路面有小障碍时会产生振动的情况,在ADAMS中对单个支腿建立刚体动力学仿真模型,得到支腿上下运动加速度数据,以最小化其加速度均方根为目标函数,以碟簧阻尼、铰接轴安装位置等为设计变量进行优化设计。结果表明,优化后支腿振动减轻,对提高游客乘座体验、减少轮胎磨损、延长悬挂支撑系统使用寿命周期等,具有良好的工程应用价值。

In view of the vibration of the tourist car caused by small road blocks,the paper builds a rigid dynamic simulation model for a single outrigger in ADAMS to get the up-and-down motion acceleration of the outrigger. Optimal design is performed with the minimized acceleration root value as the target function,disc spring damping and articulated shaft installing position as design variables. The result shows that the vibration of the outrigger reduces after optimization,indicating excellent engineering application value including improving tourists＇ experience,reducing the wheel tire wear,and extending the service life of the floating suspension system.