伝達マトリックス法を利用した点加振される長方形平板の応答解析(<特集>D&D 2008)

概要

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This paper presents a numerical method to investigate the frequency response of a rectangular plate. When we use the transfer matrix method to calculate frequency response of plates, exciting force is limited to a line force and applicable object is also restricted. To expand the range of application of the transfer matrix method, we propose a method to calculate modal parameters from free vibration analysis by using the transfer matrix method. Modal mass is calculated by numerical integration from modal vectors. We have applied this method to calculate the frequency response of plates. Comparing the results obtained from the proposed method and finite element method, characteristics of the frequency response of both methods agree with each other. Calculation process of the proposed method has an advantage of computational efficiency. As a result, it is possible to be a powerful way to execute parametric studies.
2009-05-25