By analyzing the measured data of rail corrugation in a small radius curve track with Cologne fasteners, the typical passing frequencies of corrugation were obtained. Then, according to actual line conditions, the vehicle-track coupled model and rail material friction and wear model were established and simulated, and rail corrugation characteristics of the curved section were studied. The results show that the variation amplitude of creep force on the inside of a guiding wheelset is large, and it coincides with that of the saturated creep force partially and the coincident part appears periodically. The variation amplitude of creep force on the outside of the guiding wheelset is small, and it is approximately equal to that of the saturated creep force. In addition, the variation range of the wear depth curve on inner rail is mainly changing from 0 μm to 0.0014 μm, showing periodic wavy wear, and when the creep force is equal to the saturated creep force, the wear depth reaches the peak. The variation range of the wear depth curve on outer rail is mainly changing from 0.0005 μm to 0.0008 μm, showing uniform wear. Combined with the predicted profile of rail wear, it can be seen that the inner rail mainly suffers from corrugation on the top of rail and the outer rail mainly suffers from uniform wear on the side, which results in serious corrugation on inner rail and slight corrugation on outer rail. The frequency characteristics analysis of wear shows that the inner rail wear has characteristic frequencies similar to the passing frequencies. Modal analysis results show that the vibration of inner rail at the characteristic frequencies is greater than that of outer rail, which lead to the corrugation of the corresponding frequencies more easily. The wear growth rates at the characteristic frequencies are relatively large, which indicates that the wear at the corresponding frequencies will continue to develop and eventually form corrugation.

中文翻译：

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小半径曲线的科隆鸡蛋紧固件截面的铁路波纹特征

通过使用科隆紧固件分析小半径曲线轨道上的铁路波纹的测量数据，获得了典型的波纹通过频率。然后，根据实际生产线条件，建立并模拟了车轨耦合模型和轨道材料的摩擦磨损模型，研究了曲线截面的轨道波纹特性。结果表明，导向轮对内部的蠕变力变化幅度较大，与饱和蠕变力的变化幅度部分吻合，同时重合部分周期性出现。导向轮副外侧的蠕变力的变化幅度很小，大约等于饱和蠕变力的变化幅度。此外， μ m至0.0014  μ米，表示周期性的波状磨损，并且当蠕变力等于饱和蠕变力，磨损深度达到峰值。上外轨磨损深度曲线的变化范围主要是从0.0005改变 μ微米至0.0008  μm，显示均匀磨损。结合预测的轨道磨损曲线，可以看出内轨主要在顶部产生波纹，而外轨主要在侧面出现均匀磨损，从而导致内轨严重波纹和轻微波纹在外轨上。磨损的频率特性分析表明，内轨磨损的特征频率与通过频率相似。模态分析结果表明，内轨在特征频率处的振动大于外轨在振动，这导致相应频率的波纹更容易产生。特征频率下的磨损增长率相对较大，