open access

https://hdl.handle.net/2115/53412

Computation of Macroscopic Electromagnetic Properties of Soft Magnetic Composite

英語

soft magnetic composite

2013-05

IEEE

IEEE Transactions on Magnetics

49(5)

1953-1956

This paper presents a new numerical method to compute the macroscopic electromagnetic properties of the soft magnetic composite (SMC). In present method, SMC is assumed to be composed of homogeneous magnetic bricks with periodicity. The macroscopic electromagnetic properties of SMC are obtained using the finite element method in which it is assumed that the homogenized energy is equal to that stored in a unit domain. We compare the macroscopic electromagnetic properties obtained by the present method with those obtained by Ollendorf's formula and magnetic circuit based on the nonmagnetic grain boundary model. It is shown that the three results are in good agreement when assuming constant permeability. It is also found that there are clear discrepancies among them due to magnetic saturations especially when the demagnetization coefficient is large.

学術雑誌論文

Accepted Manuscript

© 2013 IEEE. Reprinted, with permission, from Yasuhisa Ito,Hajime Igarashi, Computation of Macroscopic Electromagnetic Properties of Soft Magnetic Composite, IEEE Transactions on Magnetics, May. 2013. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Hokkaido University products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

0018-9464