| 管道周向励磁漏磁检测ANSYS仿真分析 |
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| 引用本文： | 刘保余,綦耀光.管道周向励磁漏磁检测ANSYS仿真分析[J].沈阳工业大学学报,2010,32(2):187-191. |
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| 作者姓名： | 刘保余 綦耀光 |
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| 作者单位： | 1. 中国石油大学 机电工程学院， 山东 东营 257061； 2. 中国石化管道储运公司， 江苏 徐州 221008 |
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| 基金项目： | 国家自然科学基金仪表专项基金资助项目(60927004) |
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| 摘 要： | 针对轴向导向的狭窄裂纹、焊缝、机械损伤和腐蚀凹坑等缺陷的检测问题，提出了一种周向励磁检测方法.通过分析周向漏磁检测原理，建立了静态情况下周向磁化器的二维有限元（FE）模型，利用ANSYS有限元分析软件对模型进行仿真分析.仿真结果表明，周向磁化器磁化管壁获得非均匀磁场，磁化器附近的磁场强度最大，两个磁极中心的磁场强度最小，缺陷漏磁信号不仅与缺陷参数有关，还与缺陷距磁极距离的大小有关.该结果证实了周向励磁方法检测轴向缺陷的可行性及开发管道周向励磁漏磁检测工具的实用性.
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| 关 键 词： | 管道 缺陷 漏磁检测 周向励磁 有限元模型 漏磁信号 仿真 ANSYS软件 |
Simulation on circumferential magnetic flux leakage inspection in pipeline using ANSYS |
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| LIU Bao-yu,QI Yao-guang.Simulation on circumferential magnetic flux leakage inspection in pipeline using ANSYS[J].Journal of Shenyang University of Technology,2010,32(2):187-191. |
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| Authors: | LIU Bao-yu QI Yao-guang |
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| Affiliation: | 1. School of Mechanical and Electrical Engineering, China University of Petroleum, Dongying 257061, China; 2. Sinopec Pipeline Storage and Transportation Company, Xuzhou 221008, China |
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| Abstract: | For the detection problem of such axial-oriented defects as narrow crack,weld,mechanical damage and corrosion pit,a circumferential excitation inspection method was proposed.The 2D finite element(FE) model of circumferential magnetizer in static state was established by analyzing the principle of circumferential magnetic flux leakage(MFL) inspection.The model was simulated by ANSYS software.The simulation results show that non-uniform magnetic field is obtained due to the magnetization of pipe wall,and the ... |
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| Keywords: | pipeline defect MFL inspection circumferential excitation finite element model MFL signal simulation ANSYS software |
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