燃料电池大客车悬架导向机构优化

Suspension Control Bars Optimization of Fuel Cell Bus

针对与普通客车相比,燃料电池大客车具有重心高、簧载质量大等特点,采用传统客车悬架的参数与尺寸已不能满足整车稳定性要求。基于ADAMS环境建立燃料电池大客车悬架参数化模型,对横向稳定杆、推力杆的安装硬点坐标及横向稳定杆的截面尺寸进行了优化,基于应力-强度干涉理论,对推力杆截面尺寸进行了可靠性设计。运动分析表明优化结构无运动干涉,优化后燃料电池大客车稳定性达到了普通客车的水平,为燃料电池大客车的悬架导向机构设计提供了方法参考。

Compared with the conventional bus, the fuel cell bus has the higher centre of gravity as well as the larger sprung mass. It is not appropriate to employ the original suspension design for the automobile stability. A parameterized suspension model of fuel cell bus was established by using ADAMS, the coordinate of installation location of stabilizer bar and track bar as well as the section size of stabilizer bar were optimized. The reliability design was used for the section size of track bar based on the stress-strength interference theory. Motion analysis demonstrates that the optimized structure have no interference. The stability of fuel cell bus achieves the stability level of general bus and the research provides a referenced method for the design of suspension control bars of fuel cell bus.