关键词: 菱形客车, 平顺性, 随机路面, 脉冲路面

Abstract:

An eleven DOF model of a rhombic bus was built, and the effects of each design factors on ride comfort was analyzed. With weighted vertical root mean square values of each passenger's acceleration as optimization objective, and with dynamic displacement of each suspension and relative dynamic load of each tire as constraint conditions on random road, the parameters of suspension were optimized by NSGA-Ⅱ. The ride comfort of the rhombic bus is improved after optimization, and the change rule of the rhombic bus's ride comfort on pulse road was analyzed based on the optimized parameters of suspension.

Key words: rhombic bus, ride comfort, random road, pulse road