Field Distribution Around Surface Cracks in Metallic Cylindrical Structures Excited by High-Frequency Current-Carrying Coils of Arbitrary Shape

Akbari-Khezri Ali; Sadeghi Seyed Hossein Hesamedin; Moini Rouzbeh

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Field Distribution Around Surface Cracks in Metallic Cylindrical Structures Excited by High-Frequency Current-Carrying Coils of Arbitrary Shape

机译：任意形状的高频载流线圈激发的金属圆柱结构表面裂纹周围的场分布

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摘要

We propose an efficient modeling technique for the theoretical prediction of magnetic field distributions around surface cracks in metallic cylindrical structures due to high-frequency alternating-current-carrying coils of arbitrary shape. In this technique, a closed-form solution in Fourier domain is derived that extends the governing Laplace equation inside the crack to the regions outside the crack. This is done by introducing a boundary condition that is based on the conservation of magnetic flux. The validity of the proposed model is demonstrated by comparing the simulation results of several case studies with measurements and those obtained using a commercial finite integration technique code.

机译：我们提出了一种有效的建模技术，用于理论预测由于任意形状的高频交流电线圈引起的金属圆柱结构表面裂纹周围的磁场分布。在这种技术中，得出了傅立叶域中的封闭形式解，该解将裂纹内部的控制拉普拉斯方程扩展到裂纹外部的区域。这是通过引入基于磁通守恒的边界条件来完成的。通过将一些案例研究的仿真结果与测量结果以及使用商业有限积分技术代码获得的仿真结果进行比较，证明了所提出模型的有效性。

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来源
《Magnetics, IEEE Transactions on》 |2015年第2期|1-10|共10页
作者
Akbari-Khezri Ali; Sadeghi Seyed Hossein Hesamedin; Moini Rouzbeh;
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作者单位

Department of Electrical EngineeringApplied Electromagnetic Laboratory, Amirkabir University of Technology, Tehran, Iran;

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原文格式 PDF
正文语种 eng
中图分类
关键词
Boundary conditions; Coils; Fourier transforms; Magnetic fields; Metals; Surface cracks; Surface impedance; Cylindrical metal; eddy currents (ECs); fatigue crack; nondestructive testing; thin-skin regime;

机译：边界条件;线圈;傅立叶变换;磁场;金属;表面裂纹;表面阻抗;圆柱金属;涡流（ECs）;疲劳裂纹;无损检测;薄皮状态;

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专利

1. Field Distributions Around a Long Opening in a Metallic Half Space Excited by Arbitrary-Frequency Alternating Current-Carrying Wires of Arbitrary Shape [J] . Ostovarzadeh M. H., Sadeghi S. H. H., Moini R. Magnetics, IEEE Transactions on . 2011,第11期

机译：任意形状的交流交流载电流导线激发的金属半空间中长开口周围的场分布
2. Field Distributions Around a Rectangular Crack in a Metallic Half-Space Excited by Long Current-Carrying Wires With Arbitrary Frequency [J] . Ostovarzadeh M. H., Sadeghi S. H. H., Moini R., Magnetics, IEEE Transactions on . 2013,第3期

机译：任意频率的长载电流导线激发的金属半空间中矩形裂纹周围的场分布
3. Field Distributions Around Arbitrary Shape Surface Cracks in Metals, Induced by High-Frequency Alternating-Current-Carrying Wires of Arbitrary Shape [J] . M. Ravan, S. H. H. Sadeghi, R. Moini IEEE Transactions on Magnetics . 2006,第9期

机译：任意形状的高频交流电导线引起的金属中任意形状的表面裂纹周围的场分布
4. A fuzzy alignment approach for identification of arbitrary crack shape profiles in metallic structures using ACFM technique [C] . Noroozi Amin, Hasanzadeh Reza PR, Ravan Maryam 2012 20th Iranian conference on electrical engineering . 2012

机译：使用ACFM技术识别金属结构中任意裂纹形状轮廓的模糊对准方法
5. Asymptotic high frequency analysis of the surface fields of a source-excited circular cylinder with an impedance boundary condition. [D] . Tokgoz, Cagatay. 2002

机译：具有阻抗边界条件的源激发圆柱的表面场的渐近高频分析。
6. Detection of Surface and Subsurface Cracks in Metallic and Non-Metallic Materials Using a Complementary Split-Ring Resonator [O] . Ali Albishi, Omar M. Ramahi 2014

机译：使用互补的开口环谐振器检测金属和非金属材料中的表面和亚表面裂纹
7. Stress Intensity Factor for a Circumferential Crack in a Finite-Length Thin to Thick Walled Cylinder under an Arbitrary Biquadratic Stress Distribution on the Crack Surfaces [O] . MESHII Toshiyuki, WATANABE Katsuhiko 2001

机译：裂纹表面任意双二次应力分布下有限长薄壁厚圆筒周向裂纹的应力强度因子
8. High-Frequency Surface Fields Excited by a Point Source on a Concave Perfectly Conducting Cylindrical Boundary. [R] . Felsen, L. B., Ishihara, T. 1978

机译：凹面完全导电圆柱边界上的点源激发的高频表面场。

Field Distribution Around Surface Cracks in Metallic Cylindrical Structures Excited by High-Frequency Current-Carrying Coils of Arbitrary Shape

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