噪声与振动控制2017，Vol.37Issue(6)：81-85,5.DOI:10.3969/j.issn.1006-1355.2017.06.016
连通式油气悬架整车建模与平顺性优化
Modeling and Ride Comfort Optimization of Vehicles with Interconnected Hydro-pneumatic Suspensions
摘要
Abstract
To improve the ride comfort of the vehicles with interconnected hydro-pneumatic suspensions, the joint simulation system of Simulink model of the vehicles and AMEsim model of the hydro-pneumatic suspensions is established based on 7-DOF vehicle's mathematical model. The time-domain analog signal of four-wheel correlation generated by white noise method is used as simulation excitation to carry out the joint simulation analysis. The evaluation index of vehicle's ride comfort is defined, and the parameters of HPS affecting the performance of vehicles are selected. The improved multi-objective genetic algorithm is used to find the optimal solution according to the objective function and constraint conditions. he parameters before and after the optimization are put into the joint simulation model respectively, and the results are compared mutually. Simulation results show that the root mean square (RMS) value of vertical acceleration reduces by 42%, the RMS value of vehicle dynamic load reduces by 44.2 %, and the RMS value of the dynamic travel of the suspension increases by 32.6%in the case of 50 km/h riding speed. Vehicle's ride comfort is improved greatly at different speeds.关键词
振动与波/油气悬架/联合仿真/平顺性优化/遗传算法Key words
vibration and wave/hydro-pneumatic suspension/joint simulation/comfort optimization/genetic algorithm分类
机械制造引用本文复制引用
田文朋,刘钊,王伟..连通式油气悬架整车建模与平顺性优化[J].噪声与振动控制,2017,37(6):81-85,5.基金项目
"十二五"国家科技支撑资助项目(2015BAF07B08) （2015BAF07B08）
