菱形客车, 平顺性, 遗传算法, 随机路面

According to the unique chassis layout mode,a fifteen DOF model of rhombic bus was built,and the corresponding analyses and solve were done by MATLAB software.With weighted vertical root mean square values of each passenger’s acceleration as optimization objective,and with dynamic displacements of each suspension and relative dynamic loads as constraint conditions,the parameters of suspension were optimized by NSGA-Ⅱ.The optimized results indicate that the ride comfort ability of rhombic bus is improved greatly after optimization.The values of every design variable will have better reference significance to the engineering after optimization.

rhombic bus, ride comfort, genetic algorithm, random road