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설계파라미터 변경에 의한 비례 감쇠 구조물의 동특성 변화 해석
이정윤(J. Y. Lee),이정우(J. W. Lee),이준호(J. H. Lee),오재응(J. O. Oh) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.11
This paper predicts the modified proportional damping structural eigenvectors and eigenvalues due<br/> to the change in the mass and stiffness of a proportional damping structure by iterative calculation<br/> of the sensitivity coefficient using the original dynamic characteristics. The method is applied to<br/> examples of a cantilever and 3 degree of freedom lumped mass model by modifing the mass and<br/> stiffness. The predicted dynamic characteristics are in good agreement with these from the<br/> structural reanalysis using the modified mass and stiffness.