中国机械工程2025，Vol.36Issue(5)：942-953,12.DOI:10.3969/j.issn.1004-132X.2025.05.006
基于频响函数的车轮多边形磨耗车载定量诊断方法
Wheel Polygonal Wear On-board Quantitative Diagnostic Method Based on Frequency Response Function
摘要
Abstract
Wheel polygonal wear posed a significant challenge to the safety of high-speed trains in China,and the accuracy of current on-board wheel polygonal wear monitoring was inadequate.Tradi-tional double integration methods for diagnosing wheel polygonal wears had limitations,primarily due to their inability to effectively mitigate interference from rail surface roughness and lacked of consider-ation for the impact of natural modal resonances in the wheel-rail system.Addressing these issues,a frequency response function-based quantitative diagnostic method was proposed for the wheel polygo-nal wears.A comb filter was utilized to mitigate the impacts of rail roughness,isolating the"pure"wheel polygon response components,then the frequency response function was employed to adjust for inherent modal influences,allowing for a quantitative assessment of polygonal order and roughness level from axle box vibrations.It is verified by simulations and measured data,compared with the double integration methods,the proposed method may achieve better diagnosis results across all po-lygonal orders,the average estimated errors of wheel roughness grade are less than 3.5 dB,which is significantly lower than the maximum estimated error of 14 dB for the quadratic integral methods.The results show that the proposed method has broader adaptability and enhanced accuracy,and has cer-tain scientific and engineering values.关键词
车轮多边形磨耗/轴箱振动加速度/车载诊断/频响函数/梳状滤波器Key words
wheel polygonal wear/axle box vibration acceleration/on-board diagnostic/frequency response function/comb filter分类
交通运输引用本文复制引用
许文天,梁树林,池茂儒,蔡吴斌,陶公权,吴兴文..基于频响函数的车轮多边形磨耗车载定量诊断方法[J].中国机械工程,2025,36(5):942-953,12.基金项目
国家自然科学基金(52202464) （52202464）
国铁集团科技研究开发计划(N2023J043) （N2023J043）
