传统的高速列车半主动控制的控制对象是列车车体振动,往往没有考虑列车轮对的振动。轮对振动影响列车脱轨系数和轮对磨耗,关系到列车安全性和经济性。为了改善列车轮轨动力学性能,对一系横向减振器进行建模与仿真研究,通过设定不同的一系横向阻尼值,分析一系横向减振器对列车动力学性能的影响规律,并将天棚阻尼控制算法应用在一系横向半主动控制上,与被动悬挂情况进行对比。仿真结果表明,在350km/h速度级下,采用一系横向半主动控制比无一系横向减振器,列车的平稳性指标、脱轨系数和轮轨磨耗均得到改善,整体动力学性能得到提高。
The control object of traditional semi-active control which on the high-speed train is vehicle vibration;however,the wheelset vibrations are not considered. Wheelset vibrations influence on derailment quotient and wheel-rail wear which are concerned with safety and economy of train. In order to improve the train wheel/rail dynamic performance,a primary lateral damper has been modeled and simulated. The relationship of vehicle dynamic performance and primary lateral damping values has been researched by setting different damping values. And the sky-hook algorithm has been used in primary lateral semi-active control to compare with passive suspension. The simulation results show that,primary lateral semi-active suspensions have better performance than passive suspensions under 350km/h speed. The lateral ride comfort index,derailment quotient and wheel-rail wear are improved,the total performance of train is improved.