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1 Mechanika / Akademia Górniczo-Hutnicza im. St. Staszica

1 2003

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Theoretical Analysis of the Total Sound Power Radiated by a Simply Supported Rectangular Plate

Rdzanek W. P. Jr., Zawieska W. M.

Mechanika / Akademia Górniczo-Hutnicza im. St. Staszica

2003

T. 22, z. 3

405-410

A rectangular plate is embedded into a flat infinite baffe. The plate's edges are all simply supported. Some effective approximate formulations have been used to determine the values of the self-and mutual-power. The total sound power radiated has been expressed in the form of a series of the selfand mutual-power of the acoustic system discussed. All the theoretical computations have been realized in the case when a part of the plate's area is excited only. All the results presented will further be used for an analysis of the sound power radiated by the enclosure of a power transformer.