Natural frequencies and modes of two- and three-dimensional cavities bounded by elastic structures are obtained. It is shown that the free vibration problems of the structural-acoustic coupled system of two- and three-dimensions can be easily formulated and solved by utilizing the proposed method. General characteristics of the dynamic coupling between the structure and the acoustic cavity are discussed based on the system natural frequencies and mode shapes. (C) 1995 Academic Press Limited
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UMIST, Manchester Ctr Civil & Construct Engn, Manchester M60 1QD, Lancs, EnglandUMIST, Manchester Ctr Civil & Construct Engn, Manchester M60 1QD, Lancs, England
Apsley, D
Hu, W
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机构:
UMIST, Manchester Ctr Civil & Construct Engn, Manchester M60 1QD, Lancs, EnglandUMIST, Manchester Ctr Civil & Construct Engn, Manchester M60 1QD, Lancs, England