IEEJ Transactions on Industry Applications
Online ISSN : 1348-8163
Print ISSN : 0913-6339
ISSN-L : 0913-6339
Paper
Analysis of Eddy Currents in Laminated Silicon Steel Sheets of Permanent Magnet-type MRI by 3-D Finite Element Method Using Multi Nodes Technique
Yoshihiro KawaseTadashi YamaguchiRyoji OkayasuKei IwashitaMasaaki AokiTsuyoshi Tsuzaki
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2004 Volume 124 Issue 9 Pages 863-870

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Abstract

We developed a method, which is called the multi nodes technique, that can take into account of the any electrical isolation of conductors using the multi nodes of the electric scalar potentials. The eddy currents in the laminated silicon steel sheets can be calculated using this method without the mesh of the interlaminar air gap. It is quantitatively clarified that the eddy currents in the laminated silicon steel sheets in a permanent magnet-type MRI system have effects on the time variations of the flux distributions.

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© 2004 by the Institute of Electrical Engineers of Japan
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