Browse > Article
http://dx.doi.org/10.7782/JKSR.2015.18.5.401

Study on MFL Technology for Defect Detection of Railroad Track Under Speed-up Condition  

Kang, Donghoon (Advanced Materials Research Team, Korea Railroad Research Institute)
Oh, Ji-Taek (Global Marketing Division, Korea Railroad Research Institute)
Kim, Ju-Won (Department of Convergence Engineering for Future City, Sungkyunkwan University)
Park, Seunghee (School of Architectural, Civil & Environmental Engineering, Sungkyunkwan University)
Publication Information
Journal of the Korean Society for Railway / v.18, no.5, 2015 , pp. 401-409 More about this Journal
Abstract
Defects generated in a railroad track that guides the railroad vehicle have the characteristic of growing fast; as such, the detection technology for railroad track defects is very important because defects can eventually cause mass disasters like derailments. In this study, a speed-up test facility was fabricated to investigate the feasibility of using magnetic flux leakage (MFL) technology for defect detection in a railroad track under speed-up condition; a test was conducted using a railroad track specimen with defects. For this purpose, an MFL sensor head dedicated to the configuration of the railroad was designed and test specimens with artificial defects on their surfaces were manufactured. Using the test facility, a speed-up test ranging from 4km/h to 12km/h was performed and defects including locations were successfully detected from MFL signals induced by defects with enhanced visibility by differentiating raw MFL signals. In the future, it should be possible to apply this system to a high-speed railroad inspection car by improving the lift-off stability that is necessary for speed-up of the developed MFL sensor system.
Keywords
Railroad track; Defect detection; Magnetic flux leakage; Speed-up test;
Citations & Related Records
Times Cited By KSCI : 9  (Citation Analysis)
연도 인용수 순위
1 K.S. Song, S.H. Han, Y.S. Choi (2014) Wheel/rail contact analysis with consideration of friction and torque, Journal of the Korean Society for Railway, 17(1), pp. 14-18.   DOI
2 S.Y. Kong, D.Y. Sung (2014) The fatigue life evaluation of continuous welded rail on a concrete track in an urban railway, Journal of the Korean Society for Railway, 17(3), pp. 193-200.   DOI
3 S.W. Han, S.H. Cho (2011) Review of non-destructive evaluation technologies for rail inspection, Journal of the Korean Society for Nondestructive Testing, 31(4), pp. 398-413.
4 S.W. Han, S.H. Cho, J.W. Kim, T.H. Heo (2012) Research on the non-contact detection of internal defects in a rail using ultrasonic waves, Transactions of the Korean Society for Nosie and Vibration Engineering, 22(10), pp. 1010-1019.   DOI
5 J. Park, J. Park (2014) Identification of structural defects in rail fastening systems using flexural wave propagation, Journal of the Korean Society for Nondestructive Testing, 34(1), pp. 38-43.   DOI
6 S. Park (2013) Nondestructive evaluation technique for continuum structures using non-contact magnetic flux leakage(MFL) measurement, Journal of the Korean Society for Nondestructive Testing, 33(1), pp. 96-101.
7 D. Kang, S. Park, J. W. Kim, S. Y. Park (2014) Non-contact local fault detection of railroad track using MFL technology, Journal of the Korean Society of Hazard Mitigation, 14(5), pp. 275-282.   DOI
8 M.H. Kim, Y. W. Rho, D. H. Choi (2010) Pipeline defects detection using MFL signals and Self Quotient Image, Journal of the Korean Society for Nondestructive Testing, 30(4), pp. 311-316.
9 H.W. Jeong, K. Seo, S. Park (2005) Research of corrosion decision on a region weld in MFL system, Proceedings of the Summer Confer ence of the Korean Institute of Electrical Engineers, Phoenix resort, Pyeong Chang, pp. 978-980.
10 J.W. Kim, J.S. Choi, E.C. Lee, S.H. Park (2014) Field application of a cable NDT system for cable-stayed bridge using MFL sensors integrated climbing robot, Journal of the Korean Society for Nondestructive Testing, 34(1), pp. 60-67.   DOI
11 Y.K. Shin, W. Lord (1993) Numerical modeling of moving probe effects for electromagnetic NDE, IEEE Transaction on Magnetics, 29(2), pp. 1865-1868.   DOI
12 Y.K. Shin (1997) Numerical Prediction of Operating Conditions for Magnetic Flux Leakage Inspection of Moving Steel Sheets, IEEE Transaction on Magnetics, 33(2), pp. 2127-2130.   DOI
13 Y.S. Sun, W. Lord, G. Katragadda, Y.K. Shin (1994) Influences of velocity on signal responses of magnetostatic non-destructive testing tools: a prediction from finite element analysis, IEEE Transaction on Magnetics, 30(5), pp. 3308-3311.   DOI
14 Z. Chen, J. Xuan, P. Wang, H Wang (2011) Simulation on high speed rail magnetic flux leakage inspection, Proceedings of the Instrumentation and Measurement Technology Conference (I2MTC), pp. 1-5.
15 P. Wang, Y. Gao, G.Y. Tian, H. Wang (2014) Velocity effect analysis of dynamic magnetization in high speed magnetic flux leakage inspection, NDT & E International, 64(1), pp. 7-12.   DOI
16 J. Jun, M. Choi, J. Lee, J. Seo, et al. (2011) Nondestructive testing of express train wheel using the linearly integrated Hall sensors array on a curved surface, NDT & E International, 44(5), pp. 449-455.   DOI
17 D.R. Son (1997) Principles and applications of magnetic sensor, Journal of the Korean Magnetics Society, 7(6), pp. 334-339.
18 E. Ramsden (2006) Hall-effect sensors : theory and application, Newnes, Oxford, U.K., pp. 1-272.