Vibration and sound field analysis of a holed plate subjected to a rotating sound source

Y. M. Huang, R. H. Hsu

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

This paper presents the vibration and the corresponding sound field analysis of a holed plate excited by a rotating sound source. The vibration characteristics of the holed plate are investigated by applying a layer of artificial "ectoplasm" on the entire plate including the holed area. Such an algorithm can avoid a non-unique problem with ill-conditioned mass and stiffness matrices. The external excitation on the plated is from a point sound source in a rotating motion. Rayleigh-Ritz method is performed for obtaining the equations of motion. Then, the dynamic responses can be determined. The radiated sound field, on the opposite side of the plate to the sound source, due to vibration of the baffled plate is found by using Rayleigh's integral. The diffraction field from sound wave propagating through the holes is also formulated. Total sound field is the combination of these two sound fields. Numerical results of the vibration responses of the plate and the associated sound field are showed and discussed.

原文???core.languages.en_GB???
主出版物標題13th International Congress on Sound and Vibration 2006, ICSV 2006
頁面5883-5890
頁數8
出版狀態已出版 - 2006
事件13th International Congress on Sound and Vibration 2006, ICSV 2006 - Vienna, Austria
持續時間: 2 7月 20066 7月 2006

出版系列

名字13th International Congress on Sound and Vibration 2006, ICSV 2006
7

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???event.eventtypes.event.conference???13th International Congress on Sound and Vibration 2006, ICSV 2006
國家/地區Austria
城市Vienna
期間2/07/066/07/06

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