Usefulness of fixed point method in electromagnetic field analysis in consideration of nonlinear magnetic anisotropy

Daisuke Miyagi, Kousuke Shimomura, Norio Takahashi, Hiroyuki Kaimori

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In the electromagnetic field computation in consideration of nonlinear magnetic anisotropy, the solution by the Newton-Raphson method has some problems which are an asymmetric matrix and poor convergence characteristic. We applied the Fixed-Point method to the electromagnetic field computation in consideration of nonlinear magnetic anisotropy and examined the usefulness of the Fixed-Point method through comparing the Fixed-Point method with the ordinary Newton-Raphson method. The Fixed-Point method with a symmetric matrix is quite faster than the Newton-Raphson method with an asymmetric matrix. Therefore, the Fixed-Point method is a very useful technique in nonlinear magnetic anisotropy problems.

Original languageEnglish
Article number6515075
Pages (from-to)1661-1664
Number of pages4
JournalIEEE Transactions on Magnetics
Volume49
Issue number5
DOIs
Publication statusPublished - 2013 May 22

Keywords

  • Finite element method
  • fixed point arithmetic
  • magnetic anisotropy
  • nonlinear electromagnetic analysis

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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