境界要素法とモード解析法による構造体の振動・音響解析

概要

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The boundary element acoustic analysis is coupled with structural modal analysis for predicting sound fields generated by vibrating structures. The dynamic equation of the structure is represented by modal parameters obtained by structural analysis. The acoustic equation of the fields is described using the boundary element analysis of the Helmholtz integral equation. These two equations are solved simultaneously. Numerical results are shown to demonstrate the accuracy of our method in comparison with experimental ones. The sound transmission through a cavity-backed plate is studied as the case of an interior problem. As the exterior problem, sound radiation is examined from a plate excited by a hammer.
一般社団法人日本機械学会の論文
1986-01-25