摘要
为使减振器对车辆具有最佳减振效果,利用Rebrouck建模方法,建立了反映液压减振器阀系特性的参数化动力学模型,并将该减振器动力学模型以S-Function的形式嵌入到CarsimTM的某E-Class整车模型中。以整车动力学性能为优化目标,使用NSGA-II多目标优化算法,在扫频工况下,对车辆前、后轴减振器的阻尼力特性进行了虚拟调校。计算结果表明,经调校以后的液压减振器阻尼特性使得整车的动力学性能得到了较大程度的改善。
To optimize the damping characteristics of the vehicle,a dynamic model with lumped parameters was built for the shock absorber to reflect physical effects of its valve systems and it was embedded in an E-Class vehicle model of CarsimTM using the S-Function.Taking the vehicle dynamic performances as the optimization objectives,the front and rear axle damping characteristics of the vehicle were tuned using the non-dominated sorting genetic algorithm（NSGA-Ⅱ）under frequency sweep conditions.The computation results show that vehicle dynamic performances concerned are grealty improved after virtual tuning of the shock absorber.
出处
《吉林大学学报（工学版）》
EI
CAS
CSCD
北大核心
2012年第1期1-6,共6页
Journal of Jilin University:Engineering and Technology Edition
基金
'863'国家高技术研究发展计划项目(2006AA110103)
关键词
车辆工程
减振器动力学模型
非支配排序遗传算法
虚拟调校
车辆动力学
vehicle engineering
shock absorber dynamic model
non-dominated sorting genetic algorithm（NSGA-II）
virtual tuning
vehicle dynamics
