初始轮径差对高速列车动力学性能的影响研究  

Influence of Initial Wheel Radius Difference on the Dynamic Performance of High-speed Train

作　　者：李润华[1] 宋永增[1] 徐海滨[1] 

机构地区：[1]北京交通大学机械与电子控制工程学院,北京100044

出　　处：《铁道机车车辆》2015年第2期14-18,共5页Railway Locomotive & Car

基　　金：中国铁路总公司重大项目(2013J005-A)

摘　　要：利用多体动力学软件SIMPACK,针对某高速列车转向架中存在的初始轮径差进行动力学仿真,并依据其仿真结果研究初始轮径差的限度制定标准。结果表明:初始轮径差在-0.5^+0.5mm的范围内,对列车运行稳定性与轮轨磨耗影响较大,对曲线通过安全性影响较小,对列车运行平稳性几乎没有影响。仿真结果对动车组目前规定的初始轮径差限度的进一步完善具有指导意义。By using the multi-body dynamic simulation software SIMPACK,the author simulates the dynamic performance when the ini- tial wheel radius difference exists, and researches the radius difference limit standards based on the results. The results show that when the initial wheel radius difference is in the range of -0.5 mm to ＋0.5 mm,it has greater impact on nonlinear critical speeds and wheel/ rail wear, less impact on the security of curve passing, and almost no impact on stabilities of the train. The above simulation results with guidance for further improvement of the currently prescribed limits to initial wheel radius difference.

关 键 词：高速列车 初始轮径差 限度 动力学性能 

分 类 号：U270.11[机械工程—车辆工程]