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首页> 外文会议>Proceedings of the 1st international conference on mechatronic system and measurement technology >Realization of High-Precision Automated Rail Corrugation Measuring Based on Chord Method
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Realization of High-Precision Automated Rail Corrugation Measuring Based on Chord Method

机译：基于Chord方法的高精度铁路自动波纹测量的实现

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摘要

In China, with the high-speed development of railway and increase of volume of transportation, rail co rrugations become more and more severe. The causes of rail corrugation are many and varied: driving force, nature environment, the quality of steel material and so on. Rail corrugation is the main reason that generates noise and increases dynamic interaction force between rail and wheels. If can not be maintained in a timel y manner, rail corrugation will deteriorate the wheel-rail contact surfaces, reduce the life of rail and vehicle components, and increase the maintenance cost and safety risk. In this paper, we proposed the chord method to measure rail corrugation. This method acquires the chord offset value relative to the reference plane through three laser distance sensors, which are installed along the track direction and their intervals are 30mm and 300mm respectively. It then restores the real track irregularity using the transfer function corresponding to the chord offset value. The proposed method can effectively eliminate measurement errors ca used by the railway mechanical structures, rail track undulation and other factors. Using proposed method, we can get high precision results on rail corrugation within the wavelength range of 30mm to 1000mm. Based on our statistical analysis of the actual measurement results, the measurement accuracy can get up to 0.05mm, which meets the demands of the track measurement and maintenance.
机译：在中国，随着铁路的高速发展和运输量的增加，铁路起皱变得越来越严重。轨道波纹的原因是多种多样的：驱动力，自然环境，钢材质量等。轨道波纹是产生噪音并增加轨道与车轮之间的动态相互作用力的主要原因。如果无法及时进行维护，轨道波纹会恶化轮轨接触表面，缩短轨道和车辆部件的使用寿命，并增加维护成本和安全风险。在本文中，我们提出了一种弦法来测量轨道波纹。该方法通过沿轨迹方向安装的三个激光距离传感器获取相对于参考平面的弦偏移值，它们的间隔分别为30mm和300mm。然后，它使用与和弦偏移值对应的传递函数来恢复真实音轨不规则性。所提方法可以有效消除铁路机械结构，铁轨起伏等因素造成的测量误差。使用所提出的方法，我们可以在30mm至1000mm的波长范围内获得高精度的轨道波纹结果。根据我们对实际测量结果的统计分析，测量精度可以达到0.05mm，满足轨道测量和维护的要求。

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