3D Shape Optimization of Electromagnetic Device Using Design Sensitivity Analysis and Mesh Relocation Method

설계민감도해석과 요소망 변형법을 이용한 전자소자의 3차원 형상최적화

  • 류재섭 (충북대 전기공학과) ;
  • ;
  • 고창섭 (충북대 전기전자 컴퓨터공학부)
  • Published : 2003.07.01

Abstract

This paper presents a 3D shape optimization algorithm for electromagnetic devices using the design sensitivity analysis with finite element method. The structural deformation analysis based on the deformation theory of the elastic body under stress is used for mesh renewing. The design sensitivity and adjoint variable formulae are derived for the 3D finite element method with edge element. The results of sensitivity analysis are used as the input data of the structural analysis to calculate the relocation of the nodal points. This method makes it possible that the new mesh of analysis region can be obtained from the initial mesh without regeneration. The proposed algorithm is applied to the shape optimization of 3D electromagnet pole to net a uniform flux density at the target region.

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