302 モード特性による特性行列算出とその有効性

概要

論文の詳細を見る
In this paper, the authors present an investigation about the usefulness of a new method for identifying a set of spatial matrices, using experimental FRFs of a frame structure. The identification method is non-iterative and based on the mathematical relation between spatial matrices and frequency response functions. The sets of the spatial matrices are identified under the free-free boundary condition. The frame structure is treated as three-dimensional structure. The number of measurement points is 10. Then, the number of degrees of freedom of the spatial matrices becomes 30. Using the identified spatial matrices, the prediction is carried out about the dynamic characteristics of the structure under the boundary condition of four points clamping. The usefulness of the method is investigated by the accuracy of the prediction.
一般社団法人日本機械学会の論文
2000-09-01