Tunable silencer for rectangular ventilation duct based on composite Helmholtz resonators

To attenuate low-frequency noise in square ventilation ducts, a tunable duct silencer consisting of composite Helmholtz resonators (HR) that precisely controlled by a step motor was proposed in this paper. An analytical model based on temporal coupled mode theory (TCMT) is applied to explain the sou...

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Bibliographic Details

Published in:	Acta Acustica
Main Authors:	Gao Cong, Hu Chuandeng, Hou Bo, Wu Xiaoxiao, Wen Weijia
Format:	Article
Language:	English
Published:	EDP Sciences 2024-01-01
Subjects:	helmholtz resonator ventilation duct noise control sound absorption tunable
Online Access:	https://acta-acustica.edpsciences.org/articles/aacus/full_html/2024/01/aacus230088/aacus230088.html