| 磁-光/涡流成像技术的有限元分析 |
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| 引用本文： | 任吉林,吴彦,邬冠华.磁-光/涡流成像技术的有限元分析[J].南昌航空工业学院学报,2000,14(2):12-15. |
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| 作者姓名： | 任吉林 吴彦 邬冠华 |
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| 作者单位： | 南昌航空工业学院测控工程系,江西南昌 |
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| 基金项目： | 航空科学基金资助课题 !(项目编号 :99G56 0 0 4 ) |
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| 摘 要： | 近年来迅速发展的磁－光成像（ＭＯＩ）技术使涡流检测技术得到了新的进展。本文运用磁－光／涡流成像的有限元模型对典型的飞机构件缺陷（如连接飞机表面两个铝层的紧固件下面的裂纹）进行模拟。模拟结果表明，其磁场垂直分量的变化对这种结构来说是相当灵敏的，采用ＭＯＩ技术可以用来探测隐藏在紧固件帽下面的缺陷。
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| 关 键 词： | 涡流检测 磁光成像 有限元模拟 |
| 修稿时间： | 2000-03-06 |
Finite Element Modeling of Magneto-Optic/Eddy Current Imaging Technology |
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| Ren Jilin,Wu Yan,Wu Guanhua.Finite Element Modeling of Magneto-Optic/Eddy Current Imaging Technology[J].Journal of Nanchang Institute of Aeronautical Technology(Natural Science Edition),2000,14(2):12-15. |
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| Authors: | Ren Jilin Wu Yan Wu Guanhua |
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| Abstract: | Eddy current inspection of aging aircraft has currently achieved new developments with the introduction of Magneto-Optic Imaging(MOI).Finite element modeling of eddy current magneto-optic imaging is invoked in this paper and applied to a typical defects of aircraft configuration,such as a flaw initiating under the cap of a fastener used to connect two aluminum layers of the aircraft skin.Simulation results revealed that the change in the vertical component of the magnetic field is noticeable for this configuration,and that MOI can be used to detect hidden flaws covered by the fastener cap. |
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| Keywords: | Eddy current inspection Magneto-Optic Imaging(MOI) Finite element modeling |
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