大西高速铁路钢轨廓形偏差管理及影响研究

Study on Management and Impact of Rail Profile Deviation of Datong-Xi'an High-speed Railway

本文根据国内外对高速铁路钢轨廓形偏差管理的研究,结合线路实际条件及动车组运用情况,对大西高速铁路现场钢轨廓形与运用动车组轮对踏面进行匹配分析。结合目前高速铁路钢轨运用的设计廓形,对现场钢轨廓形偏差进行研究。通过对不同车辆、不同磨耗状态的车轮与不同偏差的钢轨廓形进行匹配分析和动力学仿真对比分析,得到廓形偏差对轮轨关系及动力学性能的影响,进而提出了适应于大西高速铁路钢轨廓形容许偏差的建议值。

Based on the literature on rail profile deviation management of high-speed railways both in China and abroad,combined with the actual conditions of the line and the operation of electrical multiple units,this paper makes a matching analysis between the rail profile used for Datong-Xi'an High-speed Railway and the wheel tread of electrical multiple units under operation.Combined with the design profile of high-speed rails in use at present,the deviation of rail profile on-site is studied.Through the matching analysis and dynamic simulation comparison analysis of different vehicles,wheels in different wear states,and rail profiles with different deviations,the impact of profile deviation on wheel-rail relationship and dynamic performance is obtained,and then the recommended value suitable for the allowable deviation of rail profiles of Datong-Xi'an High-speed Railway is put forward.