基于实测数据的车辆轮对磨耗模型研究
丁亚琦1吕晟1王子晗2张枝森1刘伟渭3沈钢4
Research on Vehicle Wheelset Wear Model Based on Measured Data
DING Yaqi1LYU Sheng1WANG Zihan2ZHANG Zhisen1LIU Weiwei3SHEN Gang4
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作者信息:1.上海地铁维护保障有限公司车辆分公司，200235，上海
2.中车青岛四方车辆研究所有限公司，266031，青岛
3.西南交通大学机械工程学院，610031，成都
4.同济大学铁道与城市轨道交通研究院，201804,上海
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Affiliation:1.Vehicle Branch of Shanghai Metro Maintenance Support Co., Ltd., 200235, Shanghai, China
2. CRRC Qingdao Sifang Rolling Stock Research Institute Co., Ltd., 266031, Qingdao, China
3. School of Mechanical Engineering, Southwest Jiaotong University, 610031, Chengdu, China
4.Institute of Rail Transit, Tongji University, 201804, Shanghai, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2024.06.012
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中图分类号/CLCN:U260.331+.1
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栏目/Col:研究报告
摘要:
［目的］基于上海轨道交通17号线列车轮对实测数据，研究轮对磨耗规律，建立轮对轮缘厚度和轮径磨耗模型，以提高城市轨道交通车辆的安全性和维护效率。［方法］对轮对实测数据进行预处理，消除数据误差；采用曲线拟合和误差分析方法建立轮缘厚度和轮径的磨耗模型，并以磨耗速率拟合标准差，以及真实值与误差拟合曲线之间误差值的拟合标准差作为该模型的评价指标，评估轮缘厚度及轮径磨耗模型的准确性；分别针对1701次和1721次列车进行轮对磨耗模型验证。［结果及结论］1701次和1721次列车轮对轮缘厚度磨耗速率4次拟合曲线的拟合标准差，以及真实值与误差拟合曲线之间误差值的6次拟合曲线的拟合标准差均接近于零，验证了该车辆轮对磨耗模型的准确性，能够精确预测上海轨道交通17号线同一车型不同列车及同一列车不同位置的轮对磨耗情况。
Abstracts:
［Objective］ Based on the measured data of the train wheelsets on Shanghai Metro Line 17, the wheelset wear pattern is studied, and a wear model of wheel rim thickness and wheel diameter is established to improve the safety and maintenance efficiency of urban rail transit vehicles. ［Method］ The measured wheelset data are pre-processed to eliminate data errors. Curve fitting and error analysis method are used to establish the wear model of wheel rim thickness and wheel diameter. The fitting standard deviation of wear rate and that of the error value between the true value and the error fitting curve are used as evaluation indexes to evaluate the accuracy of the wear model. The wheelset wear model is verified with Train 1701 and Train 1721 respectively. ［Result & Conclusion］ Both the fitting standard deviation of 4th power fitting curve of wear rate for Train 1701 and Train 1721 wheelset rim thickness and wheel diameter, and that of 6th power fitting curve of the error value between the true value and the error fitting curve are close to zero, verifying that the vehicle wheelset wear model can accurately predict the wheelset wear of different types of trains and different vehicle positions of the same train on Shanghai Metro Line 17.
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