ECT Method for Wire Breakage Defects in Wire Ropes

Abstract

Abstract: A new type of ECT probe was designed, which mainly induced eddy currents in axial direction of wire ropes. To prove the feasibility, a finite element method code of reduced vector potential formulation (Ar method) was applied to simulate ECT signals due to different defects and probe geometries. Based on the numerical results, an ECT probe was designed and fabricated and the efficiency for inspection of wire ropes was demonstrated through experiments with test-piece of simulated and practical wire ropes. Both the numerical and experimental results reveal that the developed probe can detect the wire breakages in wire ropes efficiently.

Key words: wire breakage in wire ropes, eddy current testing(ECT), reduced magnetic vector potential method, array eddy current probe

摘要： 设计了一种在钢丝绳内主要感生轴向涡流的新型无损检测探头，为了确认其可行性，采用退化向量位(Ar)有限元法对钢丝绳涡流检测进行了数值模拟。基于仿真结果设计并制作了钢丝绳涡流检测探头，并通过检测带有断丝缺陷的钢丝绳模拟试件和实际钢丝绳验证了其有效性。仿真与实验结果表明，所开发的新型涡流检测探头对钢丝绳断丝缺陷检测非常有效。

关键词: 钢丝绳断丝缺陷, 涡流检测, 退化磁矢位方法, 阵列涡流探头

CLC Number:

TG115.28

YU Xiaojie1;LI Xudong1;XIE Shejuan1;LI Peng2;WANG Hao2,3;CHEN Zhenmao1. ECT Method for Wire Breakage Defects in Wire Ropes[J]. China Mechanical Engineering.

于小杰1;李旭东1;解社娟1;李鹏2;王昊2,3; 陈振茂1. 钢丝绳断丝缺陷涡流检测方法[J]. 中国机械工程.

References

[1]杨叔子, 康宜华. 钢丝绳断丝定量检测原理与技术[M]. 北京：国防工业出版社, 1995:1-50.
YANG Shuzi, KANG Yihua. Quantitative Inspection for Broken Wires of Wire Ropes Principle and Technique[M]. Beijing: National Defense Industry Press, 1995:1-50.
[2]梁华，洪汝渝，杨光祥. 基于漏磁信号的钢丝绳检测技术研究[J]. 压电与声光，2008，30(4):508-510.
LIANG Hua, HONG Ruyu, YANG Guangxiang. Research on Wire Rope Nondestructive Testing Technology Based on the Magnetic Flux Leakage Signals[J]. Piezoelectrics & Acoustooptics, 2008，30(4):508-510.
[3]MAKAR J, DESNOYERS R. Magnetic Field Techniques for the Inspection of Steel under Concrete Cover[J]. NDT&E International, 2001, 34(7):445-456.
[4]曹青松, 刘丹, 周继惠,等. 一种钢丝绳断丝无损定量检测方法[J]. 仪器仪表学报, 2011, 32(4):787-794.
CAO Qingsong, LIU Dan, ZHOU Jihui, et al. Non-destructive and Quantitative Detection Method for Broken Wire Rope[J]. Chinese Journal of Scientific Instrument, 2011, 32(4):787-794.
[5]BASAK D, PAL S, PATRANABIS D C. Nondestructive Evaluation of a Haulage Rope in a Monocable Continuously Moving Passenger Ropeway[J]. Journal of Failure Analysis & Prevention, 2008, 8(6):487-491.
[6]CHEN Z, YUSA N, MIYA K. Some Advances in Numerical Analysis Techniques for Quantitative Electromagnetic Nondestructive Evaluation[J]. Nondestructive Testing & Evaluation, 2009, 24(1/2):69-102.
[7]顾伟, 褚建新. 钢丝绳缺陷信号的特征量分析与损伤状况的模糊辨识[J]. 机械工程学报, 2002，38(5):122-125.
GU Wei, CHU Jianxin. Characteristic Values Analysis and Fuzzy Discernment for the Fault Status of the Wire Rope[J]. Chinese Journal of Mechanical Engineering, 2002, 38(5):122-125.
[8]李云飞，陈振茂. 基于瞬态Ar方程的非线性涡流无损评价数值模拟[J]. 无损检测，2014，36(4):1-4.
LI Yunfei, CHEN Zhenmao. Numerical Simulation of Nonlinear Eddy Current Testing Based on Transient Ar Formulation[J]. Nondestructive Testing, 2014，36(4):1-4.
[9]CHEN Z, MIYA K, KUROKAWA M. Rapid Prediction of Eddy Current Testing Signals Using A-φ Method and Database[J]. NDT&E International, 1999, 32(1):29-36.
[10]陈厚桂, 康宜华, 武新军. 基于相关性的钢丝绳断丝特征提取[J]. 机械工程学报, 2006, 42(5):224-228.
CHEN Hougui, KANG Yihua, WU Xinjun. Correlation Analysis of Broken Wire Signal in Wire Rope Testing[J]. Chinese Journal of Mechanical Engineering, 2006, 42(5):224-228.
[11]WEISCHEDEL H R, CHAPLIN C R. Inspection of Wire Ropes for Offshore Applications: Materials Evaluation[J]. NDT&E International, 1991, 24(6):323.
[12]戚德虎, 康继昌. BP神经网络的设计[J]. 计算机工程与设计, 1998,19(2):48-50.
QI Dehu, KANG Jichang. On Design of the BP Neural Network[J]. Computer Engineering and Design, 1998,19(2):48-50.

[1]	WANG Rongbiao1;KANG Yihua1,2;DENG Yongle1;WANG Biyao1;WANG Shenghan2;TANG Jian1. Detection Method for Internal Wall Corrosion of Drill Pipes Based on MFL Testing under AC and DC Magnetization [J]. China Mechanical Engineering, 2021, 32(02): 127-131，140.
[2]	ZHANG Lei1;LIU Wujun3;XIE Shejuan1,4;WANG Xiaogang2;KONG Yuying2;MA Qiang2;CHEN Zhenmao1. Swept-frequency ET and Innovative Feature Extraction of Abrasion Defects for Thimble Tubes in Nuclear Power Plants [J]. China Mechanical Engineering, 2021, 32(01): 18-25.
[3]	LI Kaiyu;GAO Wenjuan;WANG Ping;ZHANG Yanyan;HANG Cheng. Yield Strength Testing Method of Ferromagnetic Materials Based on Pulsed Eddy Current [J]. China Mechanical Engineering, 2019, 30(18): 2143-2149.
[4]	TIAN Mingming1;XIE Shejuan1,2; HAN Jie3,4;LI Peng2;PEI Cuixiang1;CHEN Zhenmao1. A Hybrid PECT/EMAT NDT Based on Wavelet Analysis [J]. China Mechanical Engineering, 2019, 30(16): 1925-1930.
[5]	HAN Xiaoqin1,2;SONG Yongfeng1;LIU Yu1; LI Xiongbing1. A Surface Roughness Measurement Method Based on Ultrasonic Nondestructive Evaluations [J]. China Mechanical Engineering, 2019, 30(08): 883-889.
[6]	MENG Jie1;WANG Zhe1;WANG Rongbiao1;KANG Yihua1;QIU Chen2. Method and System of High-speed Magnetic Flux Leakage Detection for Small-diameter Cartridges [J]. China Mechanical Engineering, 2018, 29(24): 2899-2905.
[7]	ZHANG Lipan1;MA Bingyang1;SONG Kai1;WANG Zhen2. Magnetic Property Simulation of Defects in Ferromagnetic Pipes under Magnetization [J]. China Mechanical Engineering, 2018, 29(16): 2003-2009.
[8]	WANG Zhe;MENG Jie;CUI Ximing;KANG Yihua. Ultrasonic Method and System for Automatic Detection of Cartridges [J]. China Mechanical Engineering, 2018, 29(14): 1639-1644.
[9]	LI Lijuan1，2，3;XIE Shejuan1，2;CHEN Hong'en1，2;CHEN Lingli1，2;HE Manru1，2;CHEN Zhenmao1，2. Influence of Plastic Deformation on Signals of Magnetic Incremental Permeability for Carbon Steel [J]. China Mechanical Engineering, 2018, 29(14): 1653-1660.
[10]	PU Haiming;WANG Zhe;KANG Yihua. Sound Beam's Divergence and Focus of Ultrasonic Point Focusing Probes in Spheres [J]. China Mechanical Engineering, 2018, 29(11): 1268-1273.
[11]	LIU Zhifeng;FEI Zhiyang;HUANG Haihong;QIAN Zhengchun. Study on Strengthening Mechanism of Excitation Magnetic Field to Stress-magnetization Coupling Effects [J]. China Mechanical Engineering, 2018, 29(09): 1108-1114,1126.
[12]	ZHAO Ying;XIE Shejuan;TIAN Mingming;TONG Zongfei;LI Yong;CHEN Zhenmao. Frequency-band-selecting Pulsed Eddy Current Testing Method for Detection of Defects under a Certain Depth Range [J]. China Mechanical Engineering, 2018, 29(06): 639-644.
[13]	DUAN Zhenxia, REN Shangkun, ZHAO Zhenyan, ZU Ruili. Analyses for Influences of Magnetization State on Magnetomechanical Coupling Relationship [J]. China Mechanical Engineering, 2017, 28(09): 1029-1034.
[14]	Zhou Deqiang, Wang Jun, Pan Meng, Li Ke, Su Lei, Hua Chunjian. Mechanism of Defect Detections for Rectangular Differential Probes of Pulsed Eddy Current Testing [J]. China Mechanical Engineering, 2016, 27(22): 3032-3037.
[15]	Zhang Weimin, Qiu Zhongchao, Yu Xia, Sun Hongbo. Feasibility Analyses of Improving Magnetic Memory Testing Sensibility by Strengthening Magnetic Excitation Field [J]. China Mechanical Engineering, 2015, 26(24): 3375-3378.