Abstract
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.
Original language | English |
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Article number | 5424046 |
Pages (from-to) | 1147-1154 |
Number of pages | 8 |
Journal | IEEE Transactions on Magnetics |
Volume | 46 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2010 May 1 |
Keywords
- Equivalent B-H method
- Equivalent element
- Homogenization method
- Magnetic anisotropy
- Magnetic calculation
- Magnetic saturation
- Magnetic shield
- Magnetization characteristics
- Thin steel plate
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering