基于多工况并行任务的摩托车悬架参数多目标优化

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振动与冲击 ›› 2013, Vol. 32 ›› Issue (4) : 59-65.

论文

基于多工况并行任务的摩托车悬架参数多目标优化

徐中明1,2，杨建国2 ，张志飞2 ，李仕生2 ，李晓灵3

作者信息 +

Multi-objective optimization for motorcycle suspension parametersbased on parallel tasks under multi-loading cases

XU Zhong-ming1,2, YANG Jian-guo2, ZHANG Zhi-fei2, LI Shi-sheng2

Author information +

文章历史 +

摘要

应用摩托车动力学软件BikeSim建立了人-车系统仿真模型，对加速/制动工况下的车身俯仰角和B级路面工况下等速行驶的整车平顺性分别进行了仿真；以加速/制动工况下的俯仰角最大值和等速B级路面工况下的车身垂向、俯仰振动加速度均方根值为优化目标，以悬架特性参数为设计变量，采用iSIGHT集成BikeSim和MATLAB建立两种工况的并行计算任务，对摩托车悬架系统进行了多目标优化，根据Pareto前沿提出了一种确定目标权重的方法，得到了最优解。优化前后结果对比表明：加速/制动俯仰角和平顺性均有改善。

Abstract

The rider-motorcycle system model was established by the motorcycle dynamics software BikeSim, the pitch angle and ride comfort were simulated under Grade B road stochastic excitation and accelerating-braking condition; The maximum of pitch angle and the pitching and vertical vibration acceleration RMS values under Grade B road stochastic excitation were taken as optimized objectives, and the suspension property parameters as design variables, the parallel computing tasks were built using iSIGHT to drive BikeSim and MATLAB, the multi-objective optimization was executed for motorcycle suspension system, a method to find the goal weights was proposed according to Pareto frontier, and the optimal solution was obtained. The optimal result shows that the maximum of pitch angle under accelerating-braking was decreased and the ride comfort was improved.

导出引用

徐中明;杨建国;张志飞;李仕生;李晓灵. 基于多工况并行任务的摩托车悬架参数多目标优化[J]. 振动与冲击, 2013, 32(4): 59-65

XU Zhong-ming;YANG Jian-guo;ZHANG Zhi-fei;LI Shi-sheng. Multi-objective optimization for motorcycle suspension parametersbased on parallel tasks under multi-loading cases[J]. Journal of Vibration and Shock, 2013, 32(4): 59-65