Analysis of Design Parameter of Structural Modification using Change of Dynamic Characteristics

동특성 변화로부터 구조물의 변경된 설계파라미터 해석

  • 오재응 (한양대학교 기계공학부) ;
  • 이정우 (한전기공(주)) ;
  • 이정윤 (경기대학교 기계시스템디자인공학부)
  • Published : 2006.04.01


This paper predicts the modified mass and stiffness of structure using the sensitivity coefficients with the iterative method. The sensitivity coefficients are obtained by the change of the eigenvectors according to structural modification. The method is applied to an examples of a 3 degree of freedom system by modifying mass and stiffness. The predicted mass and stiffness are in good agreement with these from the structural reanalysis using the modified mass and stiffness.


Mass Matrix;Stiffness Matrix;Sensitivity Coefficient;Dynamic Characteristics;Inverse Problem


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