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Eigenderivative Analysis of the Damped Structurure due to Modification of Mass and Stiffness  

Lee, Jung-Youn (경기대학교 기계공학과)
Publication Information
Transactions of the Korean Society of Machine Tool Engineers / v.14, no.4, 2005 , pp. 7-12 More about this Journal
Abstract
This study predicts the modified eigenvectors and eigenvalues of the damped structure due to the change in the mass, damping and stiffness of structure by calculation of the sensitivity coefficient using the original dynamic characteristic. The method is applied to examples of the damped 3 degree of freedom system by modifing the mass, damping and stiffness. The predicted dynamic characteristics are in good agreement with these from the structural reanalysis using the modified mass, damping and stiffness.
Keywords
Complex Eigenvalue; Complex Eigenvector; Damped Structure; Generalized Mass; Generalized stiffness; Sensitivity Analysis; Sensitivity Coefficient;
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