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Studies on magnetic shielding effectiveness by finite element method
Wu GH(武高辉); Huang XL(黄晓莉); Duan MQ(段茂强); Zhang Q(张强); Chen, X
作者部门工业信息学研究室
会议名称2nd International Conference on Multi-Functional Materials and Structures, MFMS-2009
会议日期October 9-12, 2009
会议地点Qingdao, China
会议录名称Advanced Materials Research
出版者Trans Tech Publications
出版地Clausthal-Zellerfeld, Germany
2009
页码1233-1236
收录类别EI ; CPCI(ISTP)
EI收录号20100312638523
WOS记录号WOS:000280155900306
产权排序2
ISSN号1022-6680
ISBN号978-0-87849-304-3
关键词Magnetic Shielding Effectiveness Finite Element Method Iron
摘要Maxwell 2D software is introduced in this paper to calculate the magnetic shielding effectiveness (MSE) properties of iron plate. The three-dimensional magnetic shield is thought isotropic and simplified as two-dimensional model to study its MSE properties by the finite element method. In this method, a uniform magnetic field is generated by two huge magnets and the MSE properties of iron plate, which is in the centre of the uniform magnetic field, is then calculated by the ratio of magnetic field intensity after and before magnetic shielding. All the results indicate that shape of shield materials affects the MSE properties much and the MSE properties of shield with square and circular shape with 3mm in depth are 39.3 and 53.5 dB, respectively. That means the shield shape with fewer bending is favorable to the conductivity of magnetic energy. It also shows that the MSE value decreased linearly with the distance between the magnetic shield and the centre of the magnetic field. That is, the increase of side length of magnetic shield will lead to the decrease of MSE properties of iron plate, which is agreement with the theoretical prediction of Lu H.M. model. Furthermore, the MSE properties of double layers shielding (iron plate with 2mm in depth and 3mm iron plate with 81% porosity) are also studied in this paper. The effect of places of iron plate with 2mm in depth is presented to play important role in double layers shielding and the MSE value increases with the distance between the two magnetic shields. Compared to that of shield with circular shape, the MSE properties are similar to each other when the distance of the two shields is 8mm. In addition, it also indicates that the MSE value is higher when the iron plate with 2mm in depth is inside of the other than that when it is outside.
语种英语
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型会议论文
条目标识符http://ir.sia.cn/handle/173321/19968
专题工业信息学研究室
通讯作者Wu GH(武高辉)
作者单位1.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080, China
2.Key Laboratory of Industrial Informatics, Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
推荐引用方式
GB/T 7714
Wu GH,Huang XL,Duan MQ,et al. Studies on magnetic shielding effectiveness by finite element method[C]. Clausthal-Zellerfeld, Germany:Trans Tech Publications,2009:1233-1236.
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