钢轨裂纹高速漏磁巡检中的动态磁化及速度效应分析

高运来; 王平; 田贵云; 王海涛; 熊龙辉; 郝思思

钢轨裂纹高速漏磁巡检中的动态磁化及速度效应分析

1.
南京航空航天大学自动化学院，南京210016
2.
Newcastle大学电子电力与计算机工程学院，Newcastle, UK

基金项目:

FP7 “NDE and SHM for Health Monitoring of Offshore Wind Farm (HEMOW)” (FP7-PEOPLE-2010-IRSES)；上海铁路局“高速铁路无缝钢轨温度应力与裂纹检测系统”资助项目。

详细信息

作者简介:
高运来(1989—)，男，博士研究生，主要从事电磁无损检测研究。

中图分类号: TG115.28
计量
- 文章访问数: 2
- HTML全文浏览量: 0
- PDF下载量: 1
出版历程
- 收稿日期: 2013-06-16
- 刊出日期: 2013-10-09

Velocity Effect Analysis of Dynamic Magnetization in High Speed Detection for Rail Crack Using MFL Method

摘要

摘要: 在高速运动条件下采用直流励磁磁轭法对钢轨裂纹损伤进行漏磁巡检时，检测装置的移动速度会给裂纹检测信号带来影响。笔者从理论模型分析、有限元仿真和高速巡检试验三个方面对其进行了研究。高速漏磁巡检时，提高巡检速度使得磁化过程时间缩短，将导致材料磁化强度降低，并且运动的磁化场会导致钢轨中产生涡电流。研究结果表明，相对于涡电流作用，材料磁化强度降低是影响裂纹漏磁检测信号的主要因素；试验条件下，在0~200 km/h速度范围内可以实现钢轨裂纹的有效检测，且提高巡检速度会使得裂纹漏磁检测信号的幅值增大。
- 钢轨裂纹 /
- 漏磁检测 /
- 高速巡检 /
- 动态磁化
Abstract: Rapid relative motion between the detection device with the DC exciter magnetic yoke and measured rail track impacts on detection signal under the condition of Magnetic Flux Leakage (MFL) detection for rail crack defects at high speed. This paper investigates the velocity effect of magnetization in high speed MFL detection from three aspects, including theoretical model analysis, finite element simulation and high-speed detection experiment. Improving the detection speed will shorten the time of magnetization process and weaken the material magnetization intensity during the high speed MFL detection. Movement of the magnetic field will produce eddy current in the rail track. Research results show that the decrease of material magnetization intensity is the main influential factor for detection signal, compared with the eddy current effect. Within the scope of 200 km/h, MFL method can realize the effective detection for rail crack defects, and improving the detection speed results in the increase of MFL detection signal amplitude.
- Rail crack /
- Magnetic flux leakage testing /
- High speed inspection /
- Dynamic magnetization

HTML全文

参考文献(12)

[1]	赵雪琴，钟雯，王文健，等.高速重载线路钢轨损伤特性分析［J］.润滑与密封,2007,32(10):100-102.
[2]	KEEVIL H W. Detector car history and new developments ［J］.IEEE Transactions of the American Institute of Electrical Engineers, Part II:Applications and Industry,1959,78(4):233-239.
[3]	祝连庆，董明利，孙军华.钢轨高速探伤检测系统中的伤损分析［J］.仪器仪表学报,2003,24(4):222-224.
[4]	Robin Clark.Rail flaw detection:overview and needs for future developments ［J］.NDT & E International,2004,37(2):111-118.
[5]	PAPAELIAS M Ph, LUGG M C, ROBERTS C, et al. High-speed inspection of rails using ACFM techniques ［J］.NDT & E International,2009,42(4):328-335.
[6]	EDWARDS R S, DIXON S, JIAN X. Characterisation of defects in the railhead using ultrasonic surface waves ［J］.NDT & E International,2006,39(6):468-475.
[7]	John Wilson, Guiyun Tian, Ilham Mukriz, et al. PEC thermography for imaging multiple cracks from rolling contact fatigue ［J］.NDT & E International,2011,44(6):505-512.
[8]	高运来，王平，田贵云，等.基于电磁原理的钢轨裂纹高速在线巡检方法［J］.无损检测,2012,34(12):1-11.
[9]	Yong Li, Gui Yun Tian, Steve Ward.Numerical simulation on magnetic flux leakage evaluation at high speed ［J］.NDT & E International,2006,39(5):367-373.
[10]	KATOH M, NISHIO K, YAMAGUCHI T. The influence of modeled B-H curve on the density of the magnetic leakage flux due to a flaw using yoke-magnetization ［J］.NDT & E International,2004,37(8):603-609.
[11]	柳杰，王平，田贵云，Theodoros Theodoulid.高速检测条件下缺陷钢轨涡流效应的仿真［J］.无损检测,2011,33(12):29-34.
[12]	NIIKUAR S, KAMEARI A. Analysis of eddy current and force in conductors with motion ［J］.IEEE Transactions on Magnetics,1992,28(2):1450-1453.

施引文献

资源附件(0)

计量

文章访问数: 2
HTML全文浏览量: 0
PDF下载量: 1
被引次数: 0

钢轨裂纹高速漏磁巡检中的动态磁化及速度效应分析

作者简介: 高运来(1989—)，男，博士研究生，主要从事电磁无损检测研究。

计量

出版历程

Velocity Effect Analysis of Dynamic Magnetization in High Speed Detection for Rail Crack Using MFL Method

计量

出版历程

目录

作者简介:
高运来(1989—)，男，博士研究生，主要从事电磁无损检测研究。