Fast Magnetic Field Modeling for Shielding Systems

被引：13
|
作者：
Giaccone, Luca [1 ]
Ragusa, Carlo [1 ]
Khan, Omar [1 ]
Manca, Michele [1 ]
机构：
[1] Politecn Torino, Dipartimento Energia, I-10129 Turin, Italy
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2013年 / 49卷 / 07期
关键词：
Fast Fourier transform (FFT); magnetic shielding; numerical methods; ELEMENT;
D O I：
10.1109/TMAG.2012.2237391
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In this paper, a new iterative algorithm for the analysis of properties of magnetic shielding systems is proposed. Since such shielding systems for low frequency applications are composed of thin-walled shells with magnetic materials of high permeability, the thin shell approximation is adopted and a numerical integral formulation of the ensuing magnetostatic problem is obtained in the form of a convolution equation. This algebraic system is eventually solved iteratively by exploiting the convolution properties of the discrete Fourier transform. The convergence properties of the procedure are analyzed and tested on two case studies where isotropic and anisotropic magnetic shields are used.
引用
收藏
页码：4128 / 4131
页数：4
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