基于ADAMS的方程式赛车前悬架分析与优化

The Analysis and Optimization on the Front Suspension System of a Formula Racing Vehicle Based on ADAMS

针对某型大学生方程式赛车前悬架系统进行分析与优化。利用动力学软件ADAMS/CAR建立该赛车前悬架多柔体模型,并在弹性运动学模式下进行仿真。分析了双轮平行跳动时悬架运动特性和赛车制动时的转向轻便性与抗点头性,结果显示主销内倾角、车轮外倾角、转向盘力矩与磨胎半径变化规律不符合设计要求。运用ADAMS/INSIGHT对原系统进行多目标优化,最终各参数均得到优化,改善了悬架系统的运动学特性与赛车的转向轻便性。

It introduces the analysis and optimization of front suspension system for a certain type of Formula Student China （FSC） racing vehicle.It establishes the flexible multi -body model of the front suspension system for racing vehicle and obtains the elastic kinematics mode with dynamic software ADAMS/CAR, analyzes the ki-nematic characteristics of suspension system in the test of parallel wheel travel and the steering handiness and an -ti-dive performance in test of braking .The analysis results show that the laws of kingpin inclination angle , cam-ber angle , steering wheel torque and scrub radius are unfit for designation requirements .It defines the multi -objectively optimization system by ADAMS/INSIGHT and gives each parameter finally .This optimization design improves the system＇s kinematic characteristics and steering handiness.