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http://hdl.handle.net/10397/106535
Title: | Convergence criteria on the acoustic velocity continuity in a panel-cavity system | Authors: | Hu, Z Maxit, L Cheng, L |
Issue Date: | Mar-2017 | Source: | Journal of the Acoustical Society of America, Mar. 2017, v. 141, no. 3, p. 2137-2142 | Abstract: | Modal-based acoustoelastic formulation is regarded as the cornerstone of vibro-acoustics and has been widely used for coupling analyses of structure-cavity systems. The controversy and the skepticism surrounding the acoustic velocity continuity with the surrounding vibrating structures have been persistent, calling for a systematic investigation and clarification. This fundamental issue of significant relevance is addressed in this paper. Through numerical analyses and comparisons with wave-based exact solution, an oscillating convergence pattern of the calculated acoustic velocity is revealed. Normalization of the results leads to a unified series truncation criterion allowing minimal prediction error, which is verified in three-dimensional cases. The paper establishes the fact that the modal based decomposition method definitely allows correct prediction of both the acoustic pressure and the velocity inside an acoustic cavity covered by a flexural structure upon using appropriate series truncation criteria. | Publisher: | AIP Publishing LLC | Journal: | Journal of the Acoustical Society of America | ISSN: | 0001-4966 | EISSN: | 1520-8524 | DOI: | 10.1121/1.4977751 | Rights: | © 2017 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America. The following article appeared in Zhongyu Hu, Laurent Maxit, Li Cheng; Convergence criteria on the acoustic velocity continuity in a panel-cavity system. J. Acoust. Soc. Am. 1 March 2017; 141 (3): 2137–2142 and may be found at https://doi.org/10.1121/1.4977751. |
Appears in Collections: | Journal/Magazine Article |
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2137_1_online.pdf | 1.52 MB | Adobe PDF | View/Open |
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