一种新的漏磁无损检测特征量提取方法
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摘要
介绍了漏磁检测的基本原理,针对已有的局限性提出了一种新特征量提取方法;该特征量在评判缺陷深度时,不受缺陷宽度的影响,通过有限元仿真对比分析了缺陷深度和宽度的变化对特征量的影响,并进行了缺陷检测实验;实验结果与有限元仿真结果证明了所提出的特征量可用于评判缺陷深度。
The basic principle of magnetic flux leakage test is introduced and a new characteristic quantity extraction method is proposed based on the existing limitation. This characteristic quantity is not influenced by the width of the defect when testing the depth of the defect. The influence of the change of the depth and width of the defect on the characteristic quantity is comparatively analyzed by finite element simulation,and the defect test is conducted. The experiment results and finite element simulation results prove that the characteristic quantity proposed in this paper is not affected by the defect width and can be used to quantify the depth of the defect.
The basic principle of magnetic flux leakage test is introduced and a new characteristic quantity extraction method is proposed based on the existing limitation. This characteristic quantity is not influenced by the width of the defect when testing the depth of the defect. The influence of the change of the depth and width of the defect on the characteristic quantity is comparatively analyzed by finite element simulation,and the defect test is conducted. The experiment results and finite element simulation results prove that the characteristic quantity proposed in this paper is not affected by the defect width and can be used to quantify the depth of the defect.
引文
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[2]廖晓玲,王飞,赵丹,等.工业管道漏磁检测技术及发展现状综述[J].价值工程,2016(10):236-237LIAO X L,WANG F,ZHAO D,et al.Review on Industrial Pipeline Magnetic Flux Leakage Testing Technique and Its Development Situation[J].Value Engineering,2016(10):236-237
[3]LI Y,TIAN G Y,WARD S.Numerical Simulation on Magnetic Flux Leakage Evaluation at Highspeed[J].NDT&E International,2006,39(5):367-373
[4]HHARI K C,KULKARNI S V.Improved FEM Model for Defect-shape Construction from MFL Signal Using Genetic Algorithm[J].Science,Measurement&Technology,IET,2007,1(4):196-200
[5]WILSON J W,TIAN G Y.Pulsed Electromagnetic Methods for Defect Detection and Characterization[J].NDT&E International,2007,40(4):275-283
[6]胥永刚,谢志聪,崔玲丽,等.基于ITD的齿轮磁记忆信号特征提取方法的研究[J].仪器仪表学报,2013(3):671-676XU Y G,XIE Z C,CUI L L,et al.Study on Feature Extraction Method of Gear Magnetic Memory Signal based on ITD[J].Chinese Journal of Scientific Instrument,2013(3):671-676
[7]刘书俊,李著信,苏毅,等.基于小波包能量谱的管道缺陷磁记忆检测信号特征研究[J].后勤工程学院学报,2012(4):74-78+90LIU S J,LI Z X,SU Y,et al.Study on Magnetic Memory Testing Signal Feature of Pipeline Defect Based on Wavelet Packet Energy Spectrum[J].Journal of Logistical Engine-ering University,2012(4):74-78+90
[8]刘昌奎,陶春虎,陈星,等.金属磁记忆检测技术定量评估构件疲劳损伤研究[J].材料工程,2009(8):33-37LIU C K,TAO C H,CHEN X,et al.Research on Quantitative Assessment of Fatigue Damage by Metal Magnetic Memory Methods[J].Materials Engineering,2009(8):33-37
[9]宋志强,张莹,吴江.基于小波包-Haar小波变换的漏磁检测信号降噪数据压缩方法[J].机床与液压,2017(2):126-129SONG Z Q,ZHANG Y,WU J.MFL Signal Denoise and Data Compression Method Based on Wavelet Packet-Haar Wavelet Transform Algorithm[J].Machine Tool&Hydraulics,2009(8):33-37
[10]ZHANG Y,YE Z,XU X.An Adaptive Method for Channel Equalization in MFL Inspection[J].NDT&EInternational,2007,40(2):127-139
[11]胡先龙,池永滨.磁记忆诊断技术中应力集中水平定量评估方法[J].华北电力技术,2005,14(6):9-13HU X L,CHI Y B.Quantitative Evaluation Method of Stress Concentration in Magnetic Memory Diagnosis Technique[J].Power Technology of North China,2005,14(6):9-13
[12]ZHANG Z,UDPA L,UDPA S S,et al.An Equivalent Linear Model for Magnetostatic Nondestructive Evaluation[J].Magnetics,IEEE Transactions on,2012,32(3):718-721
[13]IVANOV P A,ZHANG Z,YEOH C H,et al.Magnetic Leakage Modeling for Mechanical Damage in Transmission Pipelines[J].Magnetics,IEEE Transactions on,1998,34(5):3020-3023
[14]杨理践,郭天昊,高松巍,等.管道裂纹角度对漏磁检测信号的影响[J].油气储运,2017(1):85-90YANG L J,GUO T H,GAO S W,et al.Influence of the Crack Angle on the Magnetic Flux Leakage Detection Signal in Pipelines[J].Oil&Gas Storage and Transortation,2017(1):85-90
[15]陈曼云,季宏丽,程军,等.输电线压接头损伤漏磁检测的有限元仿真与试验[J].无损检测,2015(1):27-32+37CHEN M Y,JI H L,CHENG J,et al.Simulation and Experiment of Transmission Line Joints by Magnetic Flux Leakage Detection[J].NDT,2015(1):27-32+37
[16]沙胜义,付春艳,燕冰川,等.基于无损检测的输油管道环焊缝缺陷安全评估[J].管道技术与设备2017(1):26-29SHA S Y,FU C Y,YAN B C,et al.Safety Assessment on Girth Weld Defects of Petroleum Transmission Pipeline Based on NDT[J].Pipeline Technique and Equipment,2017(1):26-29
[17]程顺峰,武新军,康宜华,等.管道弯头漏磁无损检测仪的研究[J].无损检测,2004(2):59-61CHENG S F,WU X J,KANG Y H,et al.Research on Magnetic Leakage Flux Nondestructive Testing Instrument for Pipeline Elbows[J].NDT,2004(2):59-61
[18]马义来,何仁洋,陈金忠,等.钻杆漏磁检测励磁装置3D磁场的仿真模拟[J].无损检测,2016(9):25-28MA Y L,HE R Y,CHEN J Z,et al.The 3D Magnetic Field of Excitation Unit of Drill Pipe MFL Testing Based on Analog Simulation[J].NDT,2016(9):25-28
[19]段瑞,周世杰,苏哲,等.基于有限元的储罐底板漏磁检测影响因素分析[J].化学工程与装备,2017(1):202-205DUAN R,ZHOU S J,SU Z,et al.Analysis of Influencing Factors of Magnetic Flux Leakage Inspection of Tank Bottom Plate Based on Finite Element Method[J].Chemical Engineering&Equipment,2017(1):202-205
[20]孙立强,解明,朱红波,等.基于有限元法的混合励磁漏磁检测励磁源耦合分析[J].化工机械,2016(5):660-664SUN L Q,XIE M,ZHU H B,et al.Excitation Source Coupling Analysis in Magnetic Flux Leakage Detection Based on the Finite Element Method[J].Chemical Machinery,2016(5):660-664
[21]刘延雷,戴光,郑津洋.漏磁检测管道裂纹的有限元分析与试验研究[J].压力容器,2006(12):16-19LIU Y L,DAI G,ZHENG J Y.Finite Analysis and Experiment Study on MFL Testing in Pipeline's Cracks[J].Pressure Vessel,2006(12):16-19