Three-dimensional magnetic field numerical calculation by equivalent B-H method for magnetic field mitigation

Keisuke Fujisaki, Masahiro Fujikura, Jirou Mino, Shouij Satou

研究成果: Article査読

10 被引用数 (Scopus)

抄録

The 3-D magnetic field numerical analysis of a full-scale magnetic shielding room is advantageously performed by using the equivalent B-H method. In the proposed numerical method, the magnetic anisotropy and the nonlinearity due to material magnetic saturation are taken into account, by directly introducing the magnetization characteristics of the considered materials. An equivalent element, which substitutes the plural finite elements having different material properties for a homogeneous one, is introduced to reduce the number of unknowns. When the equivalent B-H method is applied to a full-scale magnetic shielding room (length 5.8 m, width 3.3 m, height 3.3 m), the measured leakage magnetic flux density distribution is found to be in good agreement with the calculated one, proving the reliability of the proposed approach, which can be adopted in many large-scale electromagnetic field problems.

本文言語English
論文番号5424046
ページ(範囲)1147-1154
ページ数8
ジャーナルIEEE Transactions on Magnetics
46
5
DOI
出版ステータスPublished - 2010 5月 1

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 電子工学および電気工学

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