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旨在研究结构硬点坐标对城市客车悬架性能的影响,并对双横臂悬架进行优化。运用ADAMS/Car,建立客车前悬架的动力学模型,研究该悬架系统的K&C特性,分析车轮定位参数随着车轮跳动的变化规律;开展灵敏度分析与试验优化设计,通过ADAMS/Insight多次迭代求解最优方案。结果表明:通过改变构件硬点的坐标,外倾角和前束角随车轮跳动的变化幅度分别降低了23.6%和8.5%,其它的车轮定位参数(如主销内倾角)相应得到了不同程度的优化。
The purpose is to study the influence of structural hard spot coordinates on the performance of urban bus suspension and to optimize the double wishbone suspension. Using ADAMS / Car, the dynamic model of the front suspension is established, the K & C characteristics of the suspension system are researched, the wheel positioning parameters are analyzed with the variation of the wheel runout, the sensitivity analysis and the test optimization design are carried out, and several times through ADAMS / Insight Iterative solution of the optimal solution. The results show that the variation range of camber and toe angle with wheel runout is reduced by 23.6% and 8.5% respectively by changing the coordinates of the hard point of the member. Other wheel alignment parameters (such as kingpin inclination) are correspondingly different optimization.