Analysis of eddy currents in laminated silicon steel sheets of permanent magnet-type MRI by 3d finite element method using multinode technique

2006 ◽  
Vol 156 (1) ◽  
pp. 61-69
Author(s):  
Yoshihiro Kawase ◽  
Tadashi Yamaguchi ◽  
Ryoji Okayasu ◽  
Kei Iwashita ◽  
Masaaki Aoki ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Permanent Magnet ◽  
Eddy Currents ◽  
Silicon Steel ◽  
3D Finite Element ◽  
Steel Sheets ◽  
3D Finite Element Method ◽  
Element Method

scholarly journals Analysis of Eddy Currents in Laminated Silicon Steel Sheets of Permanent Magnet-type MRI by 3-D Finite Element Method Using Multi Nodes Technique

2004 ◽  
Vol 124 (9) ◽  
pp. 863-870 ◽  
Author(s):  
Yoshihiro Kawase ◽  
Tadashi Yamaguchi ◽  
Ryoji Okayasu ◽  
Kei Iwashita ◽  
Masaaki Aoki ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Permanent Magnet ◽  
Eddy Currents ◽  
Silicon Steel ◽  
Steel Sheets ◽  
Element Method

Design and Analysis of a Novel 2-D Permanent Magnet Array for Planar Actuator

2013 ◽  
Vol 416-417 ◽  
pp. 253-257
Author(s):  
Liang Guo ◽  
Hao Ding
Keyword(s):  
Magnetic Field ◽  
Finite Element Method ◽  
Finite Element ◽  
Magnetic Fields ◽  
Permanent Magnet ◽  
3D Finite Element ◽  
3D Finite Element Method ◽  
Magnetic Poles ◽  
The Magnetic Field ◽  
Element Method

A novel 2-D permanent magnet array for a planar actuator was proposed, in which the portion between adjacent magnetic poles was divided to four small rectangular solids. Magnetic fields of the permanent magnet array were analyzed systematically by 3D finite element method. The analysis results show that, compared with the well-known Halbach magnet array, the proposed array has higher permanent magnet utilization. Keeping the whole permanent magnet volume constant, the arrays with several improved structures were put forward. The magnetic field analyze results prove that the utilization is best, when the ratio between the height of the magnetic poles magnetized vertically and the height of the portion magnetized horizontally is about 2.

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