Sensitivity Analysis using FRF-based Substructuring Method

전달함수합성법을 이용한 민감도 해석

  • 이두호 (국민대학교 자동차공학 전문대학원) ;
  • 황우석 (대구대학교 자동차/산업/기계 공학부) ;
  • 김찬묵 (국민대학교 자동차공학 전문대학원)
  • Published : 2000.11.02

Abstract

A general procedure for the design sensitivity analysis of structural dynamic problems has been presented in frame of the FRF-based substructuring formulation. In the procedure, the direct differentiation method is used for the sensitivity formula. For a system response function, the proposed method gives a parametric design sensitivity formula in terms of the partial derivatives of the connection element properties and the transfer matrix of the subsystems. The derived design sensitivity formula is applied to a numerical example. The comparison of sensitivities derived by the proposed method and the finite difference method shows that the proposed method is efficient and accurate.

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