振動モデルの特性行列の実験的同定 : 第1報, 特性行列の成分を設計変数とする同定法の提案

概要

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This paper proposes a new experimental identification method for the mass matrix and the stiffness matrix of vibration systems. In this method, the elements of the matrices are used as design variables, and the weighting sum of the absolute values of two differences is used as an objective function. One is the difference of the measured responses and the calculated responses by the designed matrices, another is the difference in measured natural frequencies and the calculated natural frequencies of the designed matrices. So long as the elements of the matrices are determined by the constraint conditions firstly used by authors, the identified matrices by the new method are of positive-definite. Finally, the validity of the method is verified by two examples of identification of the matrices of vibration systems.
一般社団法人日本機械学会の論文
1999-04-25