Multi-objective optimal design of magneto-mechanical system using topology approach regarding magnetic reluctance force and magnetostriction

릴럭턴스 힘과 자기변형을 고려한 자계-기계계의 다목적 위상최적설계

  • Shim, Ho-Kyung (Dept. of Mechatronics, GIST(Gwangju Institute of Science & Technology)) ;
  • Wang, Se-Myung (Dept. of Mechatronics, GIST(Gwangju Institute of Science & Technology))
  • 심호경 (광주과학기술원 기전공학과) ;
  • 왕세명 (광주과학기술원 기전공학과)
  • Published : 2008.07.16

Abstract

This research presents a multi-objective optimal design employing topological approach to maximize magnetic energy while minimizing structural deformation which is caused by magnetic reluctance force and magnetostriction. A design sensitivity formula is derived by employing the adjoint variable method (AVM) to avoid numerous sensitivity evaluations for a coupled magneto-mechanical analysis. The sensitivity analysis is verified using the finite difference method (FDM) in a C-shape actuator. A linear actuator used in a home appliance is examined for optimal design and demonstrates the strength of the proposed topology optimization approach.

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