Hoist wire ropes often operate in a high-speed swing status, and they are beyond the capability of present portable magnet magnetic flux leakage (MFL) sensors based on the yoke magnetic method due to its strong magnetic force and large weight. Unlike the yoke method, an open permanent magnetization method is proposed by theoretical analyses and also verified by the finite element method (FEM) and experiments. An open permanent magnetization method features much weaker magnetic interaction force and similar magnetization capability compared to the traditional yoke method. Meanwhile, the relevant detection sensor for wire rope is designed by simulation optimization to further test the preponderant features. Furthermore, experimental comparisons between the open and yoke sensors for wire rope inspection were also conducted, which successfully confirmed the characterization of smaller magnetic interaction force and less wear and damage in contrast with traditional technologies. Finally, the corresponding MFL apparatus was developed and applied, which demonstrated the good practicability for the nondestructive testing of hoist ropes under poor working conditions.
ASTM E1571-11(2016)e1, Standard Practice for Electromagnetic Examination of Ferromagnetic Steel Wire Rope, ASTM International,
West Conshohocken, PA, 2016.
Basak, Debasish, “Non-destructive Evaluation of Drive Ropes: A Case Study,” Nondestructive Testing and Evaluation, Vol. 20, No. 4, 2005,
Callan, Joseph M., Pelham Manor, and Edward D. Spierer, Magnetic Wire Rope Testing, US Patent 2889513, filed 13 August 1956, and published 2 June 1959.
Chaplin, C.R., “Failure Mechanisms in Wire Ropes,” Engineering Failure Analysis, Vol. 2, No. 1, 1995, pp. 45-57.
Hirama, Yutaka, Kenzoh Takahashi, and Sadayuki Hori, Electromagnetic Inspecting Apparatus for Magnetizable Wire Rope, US Patent 4427940, filed 21 April 1981, and published 24 January 1984.
Katoh, Mitsuaki, Noritaka Masumoto, Kazumasa Nishio, and Tomiko Yamaguchi, “Modeling of the Yoke Magnetization in MFL-testing by Finite Elements,” NDT & E International, Vol. 36, No. 7, 2003, pp. 479-486.
Nishiyori, Koichiro, Hiroshi Sasai, and Takashi Yoshioka, US Patent 8476898, filed 13 November 2007, and published 2 July 2013.
Osada, Akira, and Masakatsu Okamoto, Wire Rope Flaw Detector for Elevator US Patent 0090834, filed 19 November 2004, and published
26 April 2007.
Park, Gwan Soo, and Eun Sik Park, “Improvement of the Sensor System in Magnetic Flux Leakage-Type Nondestructive Testing (NDT),” IEEE Transactions on Magnetics, Vol. 38, No. 2, 2002, pp. 1277-1280.
Radovanović, Ilija D., Nikola M. Rajović, Vladimir M. Rajović, and Nenad S. Jovičić, “Signal Acquisition and Processing in the Magnetic Defec-toscopy of Steel Wire Ropes,” Telfor Journal: Telecommunications Forum, Vol. 4, No. 2, 2012, pp. 144-148.
Schrems, K. and D. Maclaren, “Failure Analysis of a Mine Hoist Rope,” Engineering Failure Analysis, Vol. 4, No. 1, 1997, pp. 25-38.
Teranchi, M.M., M. Ranjbaran, H. Eftekhari, “Double Core Giant Magneto-Impedance Sensors for the Inspection of Magnetic Flux Leakage from Metal Surface Cracks,” Sensors and Actuators A: Physical, Vol. 170, No. 1-2, 2011, pp. 55-61.
Vanderlinde, Jack. Classical Electromagnetic Theory, 2nd edition, Springer Science & Business Media, 2006.
Wang, Hong-Yao, Xu Zhao, Hua Gang, Tian Jie, Zhou Bing-bing, Lu Yan-hong, Chen Feng-jun, “Key Technique of a Detection Sensor for Coal Mine Wire Ropes,” Mining Science and Technology, Vol. 19, No. 2, 2009, pp. 170-175.
Yoshioka, Takashi, Hiroshi Sasai, and Yoshinori Miyamoto, Wire-Rope Flaw Detector: U.S. Patent 7982458, filed 10 April 2009, and published 19 July 2011.
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