铁道科学与工程学报2025，Vol.22Issue(4)：1457-1467,11.DOI:10.19713/j.cnki.43-1423/u.T20240899
考虑磨耗特性的动车组车轮经济型镟修优化策略
Economic optimization strategy of train wheel re-profiling considering wear characteristics
摘要
Abstract
The wear condition of wheels significantly impacts the safety and operational quality of Electric Multiple Unit(EMU)trains.Excessive cutting during the re-profiling process,aimed at restoring worn wheels to their standard tread profile,remains a critical issue that compromises wheel service life.This paper proposed an economical optimization strategy of train wheel re-profiling that considers the wear characteristics during the running process.First,by using correlation analysis and Gaussian distribution test,the relationship between the tire wear rate model and tire geometric parameters was studied,and wear rate model for wheel geometry parameters was constructed.Consequently,the lowest wear rate points of the wheels on different operating routes were obtained.Then,the re-weighted scaling iterative closest point method was employed to rectify wheel deformation,with priority given to achieving the lowest wear state of the tread following wheel re-profiling.The economic re-profiling of a single wheel was carried out in a self-adaptive manner using various thin rim tread shape re-profiling templates.Finally,an economical optimization model for train wheels re-profiling considering the wear characteristics was constructed to satisfy the safety operation requirements of EMU's wheel diameter difference.The test results indicate a significant relationship between the wear rate of the wheel diameter and both the wheel diameter and rim thickness.When the rim thickness is within the range of 31.5～32 mm,the wear rate of the wheel diameter is low.Therefore,during the wheel re-profiling,it is preferable to restore it to this specific range.The result of economic optimization re-profiling strategy of whole train wheels shows that the total cutting amount of wheel diameter is reduced by 21%as compared to the actual wheel repair workshop.In comparison with the traditional wheel re-profiling method,our economic optimization strategy of train wheel re-profiling considering wear characteristics is more intelligent and conducive to extending the service life of the wheels and reducing the operating cost of the railway.关键词
车轮磨耗特性/镟修优化策略/经济型镟修/加权尺寸最近点迭代法/自适应匹配Key words
wheel wear characteristics/optimization strategy of re-profiling/economical re-profiling/re-weighted scaling iterative closest point method/adaptive matching分类
交通运输引用本文复制引用
张霞,邓银强,杨岳,辜良瑶,陈峰..考虑磨耗特性的动车组车轮经济型镟修优化策略[J].铁道科学与工程学报,2025,22(4):1457-1467,11.基金项目
国家自然科学基金资助项目(52175372) （52175372）
大功率交流传动电力机车系统集成国家重点实验室开发课题(2017ZJKF09) （2017ZJKF09）
