Effect of stress on iron loss of motor core

Norio Takahashi, Daisuke Miyagi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

20 Citations (Scopus)

Abstract

Magnetic properties of a motor core are affected by the distortion due the cutting and the compression caused by a shrink fitting etc. The report which investigates such behavior systematically is few, although the examination of the detailed behavior of magnetic properties is important. In this paper, the mechanical stress due to the shrink fitting is examined and the mechanical stress of an actual stator core is measured by using strain gauges. Iron losses of actual motor cores made of wire cut and punching, and with and without shrink fitting are compared with each other. It is shown that a considerably large compressive mechanical stress is applied by the shrink fitting and the measured mechanical stress is similar to the analytical one. The iron losses of motor processed by wire cut and press become similar values when the compressive force due to the shrink fitting is large.

Original languageEnglish
Title of host publication2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
Pages469-474
Number of pages6
DOIs
Publication statusPublished - 2011 Sep 14
Externally publishedYes
Event2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011 - Niagara Falls, ON, Canada
Duration: 2011 May 152011 May 18

Publication series

Name2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011

Other

Other2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011
CountryCanada
CityNiagara Falls, ON
Period11/5/1511/5/18

Keywords

  • Mechanical stress
  • iron loss
  • motor core

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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