Estimation of iron loss in motor core with shrink fitting using FEM analysis

Daisuke Miyagi, Noriko Maeda, Yuki Ozeki, Kouhei Miki, Norio Takahashi

Research output: Contribution to journalArticlepeer-review

63 Citations (Scopus)


We performed the stress analysis of a SPM motor core with the shrink fitting, and calculated the iron loss by FEM using the B-H curve and iron loss measured under a compressive stress. We examined the effect of shrink fitting on iron loss of an actual motor and the validity of the estimation of the iron loss by FEM analysis using the measured properties affected by the stress. It is shown that the magnetic properties under the compressive stress should be considered for the precise estimation of the iron loss in a motor with the shrink fitting.

Original languageEnglish
Article number4787323
Pages (from-to)1704-1707
Number of pages4
JournalIEEE Transactions on Magnetics
Issue number3
Publication statusPublished - 2009 Mar


  • Estimation of iron loss
  • Finite element methods
  • Permanent magnet motors
  • Shrink fitting

ASJC Scopus subject areas

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


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