不同参量对缺陷交变漏磁场影响的仿真及验证
Simulation and Verification of the Influence of Various Parameters on the Defect Alternating Current Magnetic Field Leakage
摘 要
介绍了漏磁检测原理，以有限元数值仿真为手段，建立了三维有限元仿真模型，对影响钢板缺陷漏磁场分布的缺陷深度、宽度及提离高度等参数变化进行了仿真，并给出了它们的关系曲线，为缺陷漏磁判别提供了有力依据。最后给出了实验验证。结果表明，仿真研究与实际结果有较好的一致性。
缺陷
有限元
数值仿真
Alternating current magnetic field leakage testing
Defect
Finite element
Numerical simulation
Abstract
The basis of the theory of magnetic flux leakage(MFL) was introduced. The 3D finite element model was established and the influences of the changes of defect depth, width and lift-off on the defect alternating current magnetic field leakage were studied by way of finite element numerical simulation, and the relation curves were given. The analysis results provided a basis for the testing of the alternating current magnetic field leakeage testing. Finally, the experimental results were presented, and the results from experiment and finite element analysis were in agreement very well by comparison.
中图分类号 TG115.28 TP212.13
所属栏目 科研成果与学术交流
基金项目 国防预先研究支持项目(51317030109)
收稿日期 2007/9/5
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备注唐莺(1971-)，女，副教授，博士研究生，研究方向为电磁无损检测。
引用该论文: TANG Ying,GUO Xi-Ling,PAN Meng-Chun,CHEN Di-Xiang. Simulation and Verification of the Influence of Various Parameters on the Defect Alternating Current Magnetic Field Leakage[J]. Nondestructive Testing, 2008, 30(9): 577～579
唐莺,郭希玲,潘孟春,陈棣湘. 不同参量对缺陷交变漏磁场影响的仿真及验证[J]. 无损检测, 2008, 30(9): 577～579
被引情况:
【1】唐莺,罗飞路,潘孟春,陈棣湘,何赟泽, "脉冲漏磁检测管道技术的有限元分析",无损检测 31, 513-516(2009)
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参考文献
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【3】中国机械工程学会无损检测分会.磁粉检测[M].北京：机械工业出版社,2004.
【4】郭希玲,罗飞路,康中尉.交变漏磁法在钢管表面缺陷识别中的应用[J].传感器世界,2005,11(7):6-8.
【5】戴光，刘延雷，杨志军，等.基于有限元方法分析不同参量对裂纹漏磁场的影响[J].化工机械,2005,32(5):279-282.
【6】Yuji Gotoh, Norio Takahashi. Study on problems in detecting plural cracks by alternating flux leakage testing: 3-D nonlinear eddy current analysis[J]. IEEE Trans on Magnetics,2003,39(3):1527-1530.
【7】Minkov D, Shoji T. Method for sizing of 3-D surface breaking flaws by leakage flux[J]. NDT&E International,1998,31(5):317-324.
【8】Lukyanets S, Snarskii A, Shamonin M, et al. Calculation of magnetic leakage field from a surface defect in a linear ferromagnetic material: an analytical approach[J]. NDT&E International,2003,36(1):51-55.
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