高速列车车轮磨耗型面特征提取及参数化描述方法研究

doi:10.3901/JME.2023.14.245

机械工程学报 ›› 2023, Vol. 59 ›› Issue (14): 245-253.doi: 10.3901/JME.2023.14.245

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高速列车车轮磨耗型面特征提取及参数化描述方法研究

肖乾, 周前哲, 程玉琦, 王一凡, 姜雄峰, 张培东

华东交通大学载运工具与装备教育部重点实验室南昌 330013

收稿日期:2022-07-02 修回日期:2023-01-15 出版日期:2023-07-20 发布日期:2023-08-16
作者简介:肖乾,男,1977年出生,博士,教授,博士研究生导师。主要从事轨道车辆轮轨关系、轨道车辆运维装备研究与开发。E-mail:jxralph@foxmail.com
基金资助:
国家自然科学基金资助项目(51975210)。

Study on Extraction of Wheel Profile Wear Characteristics and Curve Parameterization Description of High-speed Train Wheels

XIAO Qian, ZHOU Qianzhe, CHENG Yuqi, WANG Yifan, JIANG Xiongfeng, ZHANG Peidong

Key Laboratory of Ministry of Education for Conveyance and Equipment, East China Jiaotong University, Nanchang 330013

Received:2022-07-02 Revised:2023-01-15 Online:2023-07-20 Published:2023-08-16

摘要/Abstract

摘要： 为研究我国高速列车车轮型面的磨耗规律，跟踪测试某型动车组在一个镟修周期内型面磨耗，采用仿真与实测相结合的方式分析型面磨耗规律，发现车轮磨耗主要为凹坑磨耗，磨耗区段集中在名义滚动圆左右20 mm处；采用3次NURBS曲线在同一组控制顶点、同一节点矢量下拟合磨耗型面，以NURBS曲线的权因子作为特征参数，完成一个镟修周期内不同磨耗车轮型面特征参数提取；以磨耗深度为自变量，特征参数为因变量，最小二乘法进行多项式回归拟合，构建车轮型面演变参数化描述模型，描述车轮型面在一个镟修周期内演变过程，为定量描述型面磨耗对车辆动力学影响奠定基础，也为车轮型面磨耗演变机理研究提供参考依据和研究思路；验证参数化描述模型精度及适用性时，对比相同磨耗程度下参数化描述模型型面与统计分析型面在拟合精度、轮轨几何接触及动力学响应等方面的结果，对比结果显示参数化描述模型在拟合精度、轮轨接触几何及车辆动力学响应等各方面均与统计分析型面计算结果具有很好的一致性。

关键词: 高速列车, 轮对磨耗, 跟踪测试, 型面演变, 特征提取, 参数化描述

Abstract: Wheel-tracking measurement is carried on to survey the wear law of wheel profiles of the high-speed trains in China. The combination of simulation and measurement was used to analyze the rule of profile wear. It was found that the wheel wear was mainly pit wear, and the wear section was concentrated at about 20 mm of the nominal rolling circle.The cubic NURBS curve was used to fit the wear profile under the same set of control vertices and the same node vector, and the weight factor of NURBS curve was used as the characteristic parameterof different wear wheel profile. With the attrition depth as the independent variable and the characteristic parameters as the dependent variable, the least square method was used to carry out polynomial regression fitting, and then a parameterized description model of wheel profile evolution was built to describe the evolution process of wheel profile in a turning repair cycle. It lays a foundation for quantitatively describing the influence of wear on vehicle dynamics and also provides a reference and research idea for the evolution mechanism of wheel profile wear. In order to verify the accuracy and applicability, the results of fitting accuracy, wheel-rail geometric contact and dynamic response of the parametric description model and statistical analysis wear profile curves were compared under the same wear degree.The results show that the parametric description model by the proposed parametric description function have a great agreement with the statistical analysis profiles both in the curve shapes and vehicle system dynamic performances.

Key words: high-speed train, wheel wear, tracking test, profile evolution, feature extraction, parameterized description

中图分类号:

U270

肖乾, 周前哲, 程玉琦, 王一凡, 姜雄峰, 张培东. 高速列车车轮磨耗型面特征提取及参数化描述方法研究[J]. 机械工程学报, 2023, 59(14): 245-253.

XIAO Qian, ZHOU Qianzhe, CHENG Yuqi, WANG Yifan, JIANG Xiongfeng, ZHANG Peidong. Study on Extraction of Wheel Profile Wear Characteristics and Curve Parameterization Description of High-speed Train Wheels[J]. Journal of Mechanical Engineering, 2023, 59(14): 245-253.

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高速列车车轮磨耗型面特征提取及参数化描述方法研究

Study on Extraction of Wheel Profile Wear Characteristics and Curve Parameterization Description of High-speed Train Wheels

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