双横臂悬架运动学特性设计分析  

Kinematics Characteristic Design and Analysis of Double Wishbone Suspension

作　　者：王家豪[1] 兰凤崇[1] 张浩锴[1] 陈吉清[1] 

机构地区：[1]华南理工大学机械与汽车工程学院广东省汽车工程重点实验室,广东广州510640

出　　处：《机械设计与制造》2013年第8期1-4,共4页Machinery Design & Manufacture

基　　金：国家科技支撑计划(2011BAG03B00)

摘　　要：为了提高汽车的操纵稳定性、行驶平顺性等性能,通过对"平方和加权法"及"目标规范法"进行的理论分析以及优化结果对比,优选运用"目标规范化方法"建立综合优化目标函数。应用多体动力学仿真分析方法,对前轴双横臂悬架进行三维建模以及运动学仿真分析,选取适当的硬点坐标作为设计变量,以前轮定位角及轮距的变化为目标进行运动特性优化设计。优化后使得悬架运动特性有了显著的优化提高,有效地缩短了产品开发周期,减少试验成本。To improve the car’s handling and stability,ride comfort performance,th＂e target standardized method＂is preferred to establish the objective function by comparing the theoretical analysis and optimization results between ＂Square and weighting method＂and ＂target standardized method＂.The modeling and kinematics simulation analysis on the front axle double wishbone suspension are based on the multi-body dynamics method.To perform the optimization design of the kinematics characteristics,the coordinates of some appropriate key points are selected as design variables,and the angle of the front wheel alignment and wheel change target are opted as design objectives.After optimization,the kinematics characteristics of the suspension have been significantly improved.The development cycle is effectively shortened and the testing costs are reduced by using the method mentioned above.

关 键 词：双横臂悬架 运动学特性 优化设计 目标规范化 

分 类 号：TH16[机械工程—机械制造及自动化] U463[机械工程—车辆工程]