Rail corrugation is a common railway defect that involves diverse and complex factors. Rail grinding is also the most commonly used method to address corrugations. Through numerous irregularity tests and one-third octave frequency spectrum analyses, this study determined the characteristics and development process for rail corrugation on high-speed rail tracks. The vibration transmission properties of the grinding train were tested using the force hammer impacting method. Thereafter, using a simulation, the influence of the vertical vibration behavior of the grinding stone and the stiffness of the hydraulics were determined. Through a series of field tests and numerical simulations, this study revealed a clear correlation between rail corrugation and rail grinding and confirmed that the technical operation of rail grinding is closely associated with regular grinding marks at a wavelength of approximately 60 mm on rail surfaces. The combination of the natural vibration of the grinding stone (frequency of 60 Hz) and an inappropriate operational process can aggravate the grinding marks on the rail surfaces, thereby forming an initial excitation of rail corrugation. Although a large number of irregularity tests are performed after rail grinding, these wavelength-fixing grinding marks can cause the formation and development of rail corrugation. Suggestions for improving the high-speed rail-grinding technology are also provided.

中文翻译：

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钢轨磨削引起的高速铁路钢轨波纹

钢轨波纹是一种常见的铁路缺陷，涉及的因素多样且复杂。钢轨磨削也是解决波纹最常用的方法。本研究通过大量不规则性测试和三分之一倍频程频谱分析，确定了高铁轨道上钢轨波纹的特征和发展过程。采用力锤冲击法对磨削链的振动传递特性进行了测试。此后，通过模拟，确定了磨石垂直振动行为和液压系统刚度的影响。通过一系列的现场试验和数值模拟，该研究揭示了钢轨波纹与钢轨磨削之间存在明显的相关性，并证实钢轨磨削的技术操作与钢轨表面上波长约为 60 毫米的规则磨削痕迹密切相关。磨石的固有振动（频率为60赫兹）和不恰当的操作过程相结合，会加重钢轨表面的磨痕，从而形成钢轨波纹的初激。虽然钢轨磨削后进行了大量的不平整度测试，但这些固定波长的磨痕会导致钢轨波纹的形成和发展。还提出了改进高铁磨削技术的建议。磨石的固有振动（频率为60赫兹）和不恰当的操作过程相结合，会加重钢轨表面的磨痕，从而形成钢轨波纹的初激。虽然钢轨磨削后进行了大量的不平整度测试，但这些固定波长的磨痕会导致钢轨波纹的形成和发展。还提出了改进高铁磨削技术的建议。磨石的固有振动（频率为60赫兹）和不恰当的操作过程相结合，会加重钢轨表面的磨痕，从而形成钢轨波纹的初激。虽然钢轨磨削后进行了大量的不平整度测试，但这些固定波长的磨痕会导致钢轨波纹的形成和发展。还提出了改进高铁磨削技术的建议。这些固定波长的磨痕会导致钢轨波纹的形成和发展。还提出了改进高铁磨削技术的建议。这些固定波长的磨痕会导致钢轨波纹的形成和发展。还提出了改进高铁磨削技术的建议。