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Eigenderivative Analysis by Modification of Design Parameter in the Proportional Damping System

설계파라미터 변경에 의한 비례 감쇠구조물의 동특성 변화 해석

  • 이정우 (한전기공(주)) ;
  • 오재응 (한양대학교 기계공학부) ;
  • 이정윤 (경기대학교 기계시스템디자인공학부)
  • Published : 2006.05.01

Abstract

An efficient method for change of eigenvectors and eigenvalues due to the modifying proportional damping structure using sensitivity coefficients is presented. Sensitivity coefficients are determined by iteration with eigenvalue and eigenvectors before modification of system. The proposed method is applied to examples of 3 degrees of freedom system and plate by modifying mass and stiffness. The predicted change of eigenvectors and eigenvalues are in a good agreement with these from the structural re-analysis after modification of mass and stiffness.

Keywords

References

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