钢轨疲劳斜裂纹垂向磁化检测仿真
FEM Simulation on Electromagnetic NDT of Rail RCF Crack Using Vertical Magnetization
摘 要
在分析典型滚动接触疲劳裂纹扩展特征,介绍垂向磁化检测原理及巡检方法的基础上,提出了一种采用垂向磁化场对钢轨疲劳斜裂纹进行电磁检测的方法。通过建立有限元模型,仿真分析了表面斜裂纹与钢轨顶面夹角、沿轨面下转向扩展角度、扩展深度及延伸长度、近表面裂纹埋藏深度与垂向磁化检测信号的关系。结果表明,该方法能有效检测材料表面和近表面斜裂纹及其沿轨面下的扩展特征,有助于高速铁路钢轨疲劳伤损的检测和故障早期预警。
垂向磁化检测
钢轨斜裂纹
有限元仿真
Rolling contact fatigue
Vertical magnetization test
Rail oblique crack
FEM simulation
Abstract
This paper proposed an electromagnetic NDT method for inspection and characterization of railhead fatigue oblique crack using vertical magnetization. The characteristics of natural crack initiation and propagation induced by rolling contact fatigue (RCF) were analyzed and simplified for theoretical investigation of vertical magnetization test. The relationship between detection signals and crack dimensions, such as inclined angle with running surface, growth path with different turning angles, propagation depth and length of surface crack and buried depth of sub-surface crack, were provided by carrying out 2-D static FEM simulation. The results demonstrated that this approach could effectively recognize surface and sub-surface oblique crack and their propagation characteristics. This approach is suitable for rail RCF damage inspection and fault early warning of high speed railway.
中图分类号 TG115.28
所属栏目 2014远东无损检测新技术论坛论文精选
基金项目 江苏省研究生培养创新工程资助项目(KYLX_0253, CXLX 11_0184);中央高校基本科研业务费专项资金资助项目(KYLX_0253, NZ 2012115);EU FP7资助项目(FP7-PEOPLE-2010-IRSES)。
收稿日期 2014/6/25
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备注高运来(1989-),男,博士研究生,主要从事电磁无损检测的研究。
引用该论文: GAO Yun-lai,TIAN Gui-yun,DING Song,JI Juan,WANG Ping,WANG Hai-tao,LI Dong. FEM Simulation on Electromagnetic NDT of Rail RCF Crack Using Vertical Magnetization[J]. Nondestructive Testing, 2014, 36(11): 18～23
高运来,田贵云,丁松,季娟,王平,王海涛,李东. 钢轨疲劳斜裂纹垂向磁化检测仿真[J]. 无损检测, 2014, 36(11): 18～23
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参考文献
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【2】GRASSIE S L. Rolling contact fatigue on the British railway system: treatment[J]. Wear, 2005, 258(7): 1310-1318.
【3】WANG WJ, GUO J, LIU QY, et al. Study on relationship between oblique fatigue crack and rail wear in curve track and prevention[J]. Wear, 2009, 267(3): 540-544.
【4】GROHMANN H D, HEMPELMANN K, Gross-Thebing A. A new type of RCF, experimental investigations and theoretical modelling[J]. Wear, 2002, 253(1): 67-74.
【5】BOLD P E, BROWN M W, ALLEN R J. Shear mode crack growth and rolling contact fatigue[J]. Wear, 1991, 144(2): 307-317.
【6】ZERBST U, LUNDEN R, EDEL K O, et al. Introduction to the damage tolerance behaviour of railway rails-a review[J]. Engineering Fracture Mechanics, 2009(76): 2563-2601.
【7】CLARK R. Rail flaw detection: overview and needs for future developments[J]. NDT & E International, 2004, 37(2): 111-118.
【8】PAPAELIAS M P, ROBERTS C, DAVIS C L. A review on non-destructive evaluation of rails: state-of-the-art and future development[J]. Proceedings of the Institution of Mechanical Engineers Part F-Journal of Rail and Rapid Transit, 2008(222): 367-384.
【9】SOPHIAN A, TIAN G Y, TAYLOR D, et al. Electromagnetic and eddy current NDT: a review[J]. Insight, 2001(43): 302-306.
【10】LI Y, WILSON J, TIAN G Y. Experiment and simulation study of 3D magnetic field sensing for magnetic flux leakage defect characterisation[J]. NDT & E International, 2007, 40(3): 179-184.
【11】POHL R, ERHARD A, MONTAG H J, et al. NDT techniques for railroad wheel and gauge corner inspection[J]. 2004, 37(2): 89-94.
【12】PAPAELIAS M P, LUGG M C, ROBERTS C,et al. High-speed inspection of rails using ACFM techniques[J]. NDT & E International, 2009, 42(4): 328-335.
【13】LEE J, SHOJI T, SEO D. Theoretical consideration of nondestructive testing by use of vertical magnetization and magneto-optical sensor[J]. KSME international journal, 2004, 18(4): 640-648.
【14】LEE J, CHOI M, JUN J, et al. Nondestructive testing of train wheels using vertical magnetization and differential-type Hall-sensor array[J]. IEEE Transactions on Instrumentation and Measurement, 2012, 61(9): 2346-2353.
【15】LE M, JUN J, KIM J,et al. Nondestructive testing of train wheels using differential-type integrated Hall sensor matrixes embedded in train rails[J]. NDT & E International, 2013, 46(1): 28-35.
【16】SUN Y, KANG Y, QIU C. A permanent magnetic perturbation testing sensor[J]. Sensors and Actuators A: Physical, 2009(155): 226-232.
【17】SUN Y, KANG Y, QIU C. A new NDT method based on permanent magnetic field perturbation[J]. NDT & E International, 2011, 44(1): 1-7.
【18】赵博,张洪亮.Ansoft在工程电磁场中的应用[M].北京:中国水利水电出版社,2010:47-67.
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