基于遗传算法的连通式油气悬架平顺性与道路友好性参数优化

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振动与冲击 ›› 2011, Vol. 30 ›› Issue (8) : 133-138.

论文

基于遗传算法的连通式油气悬架平顺性与道路友好性参数优化

杜恒; 魏建华

作者信息 +

Optimization of Road Comfort and Road-friendliness of Interconnected Hydro-pneumatic Suspension Based on Genetic Algorithm

Du Heng; Wei Jian-hua

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文章历史 +

摘要

为了改善大型工程车辆平顺性和道路友好性，以七自由度整车连通式油气悬架为研究对象，建立了考虑各元件非线性、路面输入四轮相关性的ADAMS/Simulink/AMESim联合仿真模型及多目标优化函数，并应用遗传算法进行联合仿真优化。结果表明：在车速为60Km/h情况下，与优化前相比，车身总加权加速度均方根值降低了42.5％，平顺性得到大幅改善，道路友好系数降低了4.5％，道路友好性也得到小幅改善。基于遗传算法的多软件联合仿真优化方法可同时提高车辆平顺性与道路友好性，并为今后多轴车辆底盘性能的仿真研究提供了参考。

Abstract

In order to improve engineering vehicle road comfort and road-friendliness, co-simulation model with ADAMS/Simulink/AMESim and multi-objective optimization function were established based on 7-DOF whole vehicle interconnected hydro-pneumatic suspension model with considering of the nonlinear characteristic of all components and four-wheel road signal correlation. Co-simulation optimization was achieved by genetic algorithm. The results show that total weighted RMS acceleration of vehicle body decrease by 42.5% and road-friendliness factor decrease by 4.5% compared with the former in the case of speed 60km/h. Road comfort has been greatly improved and road-friendly factor has been slightly improved. Vehicle ride comfort and road-friendliness can be both improved by multiple software co-simulation based on genetic algorithm. The work presented in this paper can be used for the simulation research of multi-axis chassis performance improving in the future.

导出引用

杜恒;魏建华. 基于遗传算法的连通式油气悬架平顺性与道路友好性参数优化[J]. 振动与冲击, 2011, 30(8): 133-138

Du Heng;Wei Jian-hua. Optimization of Road Comfort and Road-friendliness of Interconnected Hydro-pneumatic Suspension Based on Genetic Algorithm[J]. Journal of Vibration and Shock, 2011, 30(8): 133-138