Sound reduction of a panel-cavity system with a chaotically vibrating boundary

Autor: Yiuyin Lee
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: AIMS Mathematics, Vol 9, Iss 3, Pp 5877-5885 (2024)
Druh dokumentu: article
ISSN: 2473-6988
DOI: 10.3934/math.2024286?viewType=HTML
Popis: Here, I was the first to investigate the sound reduction of a chaotically vibrating curved panel with/without a cavity. A sound reduction formula was obtained by combining the homogeneous wave equation and nonlinear structural governing equation. The chaotic and nonlinear sound radiations were computed from the multi-mode coupled formulations using a numerical integration method. The results obtained from the proposed method and classical harmonic balance method were generally in reasonable agreement. A modal convergence study was also performed to check the proposed method. The effects of chaotic vibration on the sound reduction of a curved panel with/without a cavity were studied in detail.
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