Large-scale magnetic field analysis by the hybrid finite element-boundary element method combined with the fast multipole method

Yasuhito Takahashi, Shinji Wakao

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1 Citation (Scopus)

Abstract

This paper describes large-scale magnetic field analysis by means of the hybrid finite element-boundary element (FE-BE) method. The FE-BE method is well-suited for solving open electromagnetic field problems that comprise movement, non-linear media and eddy current. In general, however, large memory and computational costs are required due to the dense blocks in the system matrix generated by the BE part of the hybrid formulation. To overcome the above difficulties, we introduce the fast multipole method (FMM) to the FE-BE formulation developed by ourselves. Furthermore, we propose a novel preconditioning technique suitable for the hybrid FE-BE method with the FMM. Some numerical results that demonstrate the effectiveness of the proposed approach are also presented.

Original languageEnglish
Pages (from-to)309-314+13
Journalieej transactions on industry applications
Volume126
Issue number3
Publication statusPublished - 2006 Mar 14

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Keywords

  • Eddy current
  • Fast multipole method
  • Hybrid finite element and boundary element method
  • Large-scale problems

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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