M. L. Fung
Sound transmission across a rectangular duct section with a thin micro-perforated wall backed by a sidebranch cavity
Fung, M. L.; Tang, S. K.; Leung, Mors
Abstract
An experimental investigation was carried out in the present study for deeper understanding on the sound transmission across a rectangular duct section installed with a thin micro-perforated panel (as a duct wall) backed by a sidebranch cavity. The contributions of the panel configuration and the cavity depth on reducing sound transmission are examined in detail. Results indicate a complicated relationship between sound power transmission, micro-perforation configuration and backing cavity depth. For panels with strong sound absorption capacity, sound power transmission efficiency is reduced as the panels become less absorptive, but there exists a frequency or frequency band above which the opposite is observed. It appears that there is also a certain level of panel sound absorption below which the sound transmission is strengthened over the whole frequency range of present study when the panel becomes less absorptive to sound.
Citation
Fung, M. L., Tang, S. K., & Leung, M. (2024). Sound transmission across a rectangular duct section with a thin micro-perforated wall backed by a sidebranch cavity. Applied acoustics. Acoustique appliqué. Angewandte Akustik, 219, Article 109920. https://doi.org/10.1016/j.apacoust.2024.109920
Journal Article Type | Article |
---|---|
Acceptance Date | Feb 14, 2024 |
Online Publication Date | Feb 22, 2024 |
Publication Date | Mar 30, 2024 |
Deposit Date | Mar 1, 2024 |
Publicly Available Date | Mar 5, 2024 |
Journal | Applied Acoustics |
Print ISSN | 0003-682X |
Electronic ISSN | 1872-910X |
Publisher | Elsevier |
Peer Reviewed | Peer Reviewed |
Volume | 219 |
Article Number | 109920 |
DOI | https://doi.org/10.1016/j.apacoust.2024.109920 |
Keywords | Sound transmission; Micro-perforation; Duct noise control |
Public URL | https://hull-repository.worktribe.com/output/4568584 |
Files
Published article
(3.3 Mb)
PDF
Publisher Licence URL
https://creativecommons.org/licenses/by-nc-nd/4.0/
Copyright Statement
© 2024 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
You might also like
Modelling the sound absorption of panels with tapered elliptic micro-perforations
(2023)
Journal Article
Effect of Operational Wind-Turbine Vibration on Surface-Dwelling Invertebrates
(2023)
Book Chapter
Downloadable Citations
About Repository@Hull
Administrator e-mail: repository@hull.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2025
Advanced Search