现代制造工程Issue(6)：53-57,5.
基于平顺性的油气悬架参数动态分析与优化
Hydro-pneumatic suspension parameters dynamical optimization design based on ride comfort
摘要
Abstract
To improve vehicle ride comfort, hydro-pneumatic suspension system parameters were optimized.Mathematic model of a 2-DOF quarter-car model with hydro-pneumatic suspension system was established and then,the simulation model was developed by means of combination modules of Simulink, and optimal design model uses the root mean square value of body vertical acceleration as the objective function.Optimization using genetic algorithms, by programming the simulation model combined optimization model,and the optimal hydro-pneumatic suspension parameters were obtained after the combined optimization design between Simulink and Genetic Algorithm (GA).The structural parameters of front hydro-pneumatic of a mining dump truck were optimized during design stage using this method, the simulation results show that:the root mean square value of body vertical acceleration was brought down by 29.35％ ,power spectral density of body vertical acceleration was decreased by 23.6％ ,so the vehicle ride comfort can be significantly improved, which also provided references for the dynamic optimization design of other types of nonlinear suspension system.关键词
油气悬架/Simulink软件/遗传算法/动态优化Key words
hydro-pneumatic suspension/ Simulink/ Genetic Algorithm(GA)/ dynamic optimization分类
信息技术与安全科学引用本文复制引用
蔡祥文,谷正气,李伟平,梁小波,彭国谱..基于平顺性的油气悬架参数动态分析与优化[J].现代制造工程,2011,(6):53-57,5.基金项目
教育部长江学者与创新团队发展计划资助项目(531105050037) （531105050037）
湖南大学汽车车身先进设计制造国家重点实验室自主课题资助项目(61075001) （61075001）
