| 基于整车性能的液压减振器虚拟调校 |
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| 引用本文： | 郭孔辉,郭耀华.基于整车性能的液压减振器虚拟调校[J].吉林大学学报(信息科学版),2012,42(1):1-6. |
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| 作者姓名： | 郭孔辉 郭耀华 |
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| 作者单位： | 吉林大学 汽车仿真与控制国家重点实验室,长春 130022 |
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| 基金项目： | "863"国家高技术研究发展计划项目(2006AA110103). |
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| 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。
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| 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 |
| 收稿时间： | 2010-10-12 |
Virtual tuning of shock absorber characteristics based on vehicle dynamic performances |
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| Institution: | State Key Laboratory of Automobile Simulation and Control, Jilin University, Changchun 130022, China |
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| Abstract: | 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. |
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| Keywords: | vehicle engineering shock absorber dynamic model non-dominated sorting genetic algorithm(NSGA-II) virtual tuning vehicle dynamics |
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