车轮踏面粗糙度对基于惯性基准法的钢轨波磨检测结果影响分析

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (15) : 241-249.

论文

吴泽宇1,2，李明航1，王文斌1，吴宗臻1，张胜龙1

作者信息 +

Influence analysis of wheel tread roughness on rail corrugation detection results based on inertial reference method

WU Zeyu1,2, LI Minghang1, WANG Wenbin1, WU Zongzhen1, ZHANG Shenglong1

Author information +

文章历史 +

摘要

通过在地铁电客车上搭载检测设备，并基于惯性基准法实现轨道波磨快速检测已成为一种重要的技术手段。将车轮踏面粗糙度,多边形车轮以及钢轨表面粗糙度作为输入激励，建立车辆-轨道耦合多体动力学数值模型，分析车轮磨耗对基于惯性基准法的轨道波磨检测结果的影响。研究结果表明：随着钢轨波磨的加剧，当其特征波长对应的粗糙度级超过车轮踏面粗糙度级接近20dB时，车轮踏面粗糙度的存在对钢轨波磨特征波长幅值的检测精度影响很小；车轮踏面粗糙度与钢轨波磨特征波长接近且车轮踏面粗糙度幅值与钢轨波磨特征幅值之比大于0.5时，钢轨波磨检测结果的特征幅值显著增大。此时应及时进行车轮镟修对以保证检测结果的精确性。

Abstract

With the use of detecting equipment which are set on metro electric trains, rail corrugation measurement based on inertial reference method has become an important tool for the smart urban transit. By taking wheel tread roughness, polygon wheel and track roughness as input excitation, a vehicle-track coupled multi-body dynamics numerical model is established to analyze the effect of different wheel wear on the results of track measurement results based on inertial reference method. The results indicate that, with the exacerbation of rail corrugation development, when the rail roughness level corresponding to its characteristic wavelength exceeds the wheels tread roughness level by nearly 20 dB, the existence of wheels tread roughness has little influence on the measurement results accuracy of rail characteristic wavelength corrugation amplitude. When the characteristic wavelengths of wheel tread roughness and rail corrugation are close, and the ratio of wheel tread roughness characteristic amplitude to the rail corrugation characteristic amplitude is greater than 0.5, the characteristic amplitude of rail corrugation measurement results increases remarkably. Wheels of vehicle shall be lathed in time to ensure the accuracy of detection.

导出引用

吴泽宇1,2，李明航1，王文斌1，吴宗臻1，张胜龙1. 车轮踏面粗糙度对基于惯性基准法的钢轨波磨检测结果影响分析[J]. 振动与冲击, 2023, 42(15): 241-249

WU Zeyu1,2, LI Minghang1, WANG Wenbin1, WU Zongzhen1, ZHANG Shenglong1. Influence analysis of wheel tread roughness on rail corrugation detection results based on inertial reference method[J]. Journal of Vibration and Shock, 2023, 42(15): 241-249

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