Study on multiobjective optimization of vehicle suspension

NING Xiaobin, JIANG Jian, XIE Weidong
（The MOE key Laboratory of Vehicle Engineering, Zhejiang University of Technology, Hangzhou 310014, China）

Abstract: In order to solve the coupling problem of the ride and the stability, according to relevant data of W1 cars model for the Wanxiang company provides, modeling the Haima W1 car was done by using multibody dynamics simulation software Adams/car , and then the vehicle model car was used for the ride and the stability simulation, the Haima W1 car was evaluated according to ISO evaluation standard, and the cars initial performance level of ride and stability was gotten. The multiobjective optimization software iSightFD and multibody dynamics simulation software Adams/car were used to joint optimization, the evaluation standard of the ride and the stability of the car was optimized by using the island of genetic algorithms, The optimization results shows that the ride and the stability are improved of the car. Multiobjective optimization of evaluation the performance of the car is balanced and optimizated, then effectively solved the contradictions problem between the ride and the stability of the car.
Key words: multiobjective optimization; island of genetic algorithms; joint optimization; Adams/car; iSightFD