基于响应面法的整车操纵稳定性多目标优化  

Multi-Objective Optimization of Vehicle Handling and Stability Based on Response Surface Methodology

作　　者：张龙飞 范英 谢纯禄 晋民杰 ZHANG Long-fei;FAN Ying;XIE Chun-lu;JIN Min-jie(School of Transportation and Logistics,Taiyuan University of Science and Technology,Shanxi Taiyuan 030024,China)

机构地区：[1]太原科技大学交通与物流学院,山西太原030024

出　　处：《机械设计与制造》2021年第12期43-47,53,共6页Machinery Design & Manufacture

基　　金：山西省自然科学基金资助项目(201701D121071);国家级大学生创新训练项目(2018343);省级大学生创新训练项目(2018377)。

摘　　要：针对某轿车操纵稳定性较差的问题,利用ADAMS/Car据实车参数建立整车多体动力学模型,并利用相同工况下模型仿真与实车试验结果进行对比验证,确定模型的精确性。在此基础上对多个参数进行操纵稳定性对比分析,经分析发现前轮定位参数和悬架弹簧刚度等参数对汽车的操纵稳定性影响较大,以此为设计变量,采用响应面法结合统一目标法对汽车的操纵稳定性进行多目标优化,以此来提高该轿车的操纵稳定性。结果表明,该方法对汽车的操纵稳定性优化效果显著。Aiming at the problem of poor handling stability of a car,a multi-body dynamic model of the whole car is established by using ADAMS/Car real vehicle parameters,and the accuracy of the model is confirmed by comparing the model simulation and the real vehicle test results under the same working conditions. On this basis,the control and stability of several parameters are compared and analyzed. It is found that the front wheel alignment parameters and suspension spring stiffness have a great influence on the control and stability of automobiles. Taking this as the design variable, the response surface method and the unified objective method are used to optimize the control and stability of automobiles,so as to improve the control and stability of automobiles. High handling stability of the car. The results show that the method has a significant effect on vehicle handling and stability optimization.

关 键 词：操纵稳定性 ADAMS/CAR 响应面法 多目标优化 

分 类 号：TH16[机械工程—机械制造及自动化]