电气化铁路钢轨消磁系统的设计及试验研究  

Design and experimental study of demagnetisation systemfor electrified railway rails

作　　者：王庆峰[1] 张耀文 张健穹[1] 李相强[1] 陈晓豪 WANG Qingfeng;ZHANG Yaowen;ZHANG Jianqiong;LI Xiangqiang;CHEN Xiaohao(School of Physical Science and Technology,Southwest Jiaotong University,Chengdu 610031,China;Fujian Provincial Transportation Research Institute Co.,Ltd.,Fuzhou 350000,China)

机构地区：[1]西南交通大学物理科学与技术学院,成都610031 [2]福建省交通科研院有限公司,福州350000

出　　处：《重庆理工大学学报（自然科学）》2024年第8期242-246,共5页Journal of Chongqing University of Technology：Natural Science

基　　金：四川省科技厅重点研发项目(22ZDYF3091,22ZDYF3070)。

摘　　要：为消除钢轨的异常剩磁,考虑铁路的工作环境,基于永磁体消磁法的原理设计了针对钢轨的永磁体消磁阵列,并通过仿真和试验验证了消磁阵列的可靠性。基于消磁阵列、钢轨结构及铁路环境研制出适用于钢轨的永磁体消磁装置,并进行功能验证试验。试验结果表明:永磁体消磁装置可将钢轨表面磁场从100 Gs降至5 Gs以内,低于机车车感器的感应阈值36 Gs,表明消磁效果达到要求。To eliminate abnormal remanence of the rail,the permanent magnet demagnetization method is adopted according to the railway working environment.The mechanism of the permanent magnet de-magnetization method is sorted out,a permanent magnet demagnetization array for rails is designed,and the reliability of the demagnetization array is verified through simulation and testing.Based on the de-magnetization array,the rail structure and the railway environment,a permanent magnet demagnetization device for steel rails is developed and a functional verification test is conducted.Our test results show the permanent magnet demagnetization device reduces the magnetic field on the rail surface from 100 Gs to within 5 Gs,lower than the induction threshold of 36 Gs for locomotive inductors,proving the effectiveness of the demagnetization.

关 键 词：消磁装置 永磁体 钢轨 剩磁 电气化铁路 

分 类 号：U228[交通运输工程—道路与铁道工程] U229