3-D optimal design of maminated yoke of billet heater for rolling wire rod using ON/OFF

N. Takahashi, S. Nakazaki, Daisuke Miyagi, N. Uchida, K. Kawanaka, H. Namba

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

Abstract

The optimization method using the ON/OFF sensitivity analysis has an advantage that an epoch-making construction of magnetic circuit may be obtained. Therefore, it is attractive for designers of magnetic devices. We have already developed the ON/OFF method for the optimization of a static magnetic field problem, and the effectiveness is verified by applying it to the optimization of magnetic recording heads. In this paper, the ON/OFF sensitivity method is extended to the optimization of the eddy current problem using the adjoint variable. The newly developed ON/OFF method is applied to the determination of the optimal topology of the yoke of the billet heater for rolling wire rod. As a result, the optimal shape of yoke, which we could not imagine beforehand can be obtained. It is shown that the local heating of the yoke was reduced without decreasing the heating efficiency.

Original languageEnglish
Title of host publicationIET 8th International Conference on Computation in Electromagnetics, CEM 2011
Pages130-131
Number of pages2
Edition577 CP
DOIs
Publication statusPublished - 2011 Dec 12
EventIET 8th International Conference on Computation in Electromagnetics, CEM 2011 - Wroclaw, Poland
Duration: 2011 Apr 112011 Apr 14

Publication series

NameIET Conference Publications
Number577 CP
Volume2011

Other

OtherIET 8th International Conference on Computation in Electromagnetics, CEM 2011
CountryPoland
CityWroclaw
Period11/4/1111/4/14

Keywords

  • ON/OFF method step-by-step method
  • billet heater
  • eddy current problem

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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