Composite panels for reducing noise in air conditioning and ventilation systems
Article
Article Title | Composite panels for reducing noise in air conditioning and ventilation systems |
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ERA Journal ID | 4883 |
Article Category | Article |
Authors | Choy, Yat-Sze (Author), Lau, Kin-Tak (Author), Wang, C. (Author), Chau, C. W. (Author), Liu, Yang (Author) and Hui, D. (Author) |
Journal Title | Composites Part B: Engineering |
Journal Citation | 40 (4), pp. 259-266 |
Number of Pages | 8 |
Year | 2009 |
Publisher | Elsevier |
Place of Publication | Oxford, United Kingdom |
ISSN | 1359-8368 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.compositesb.2009.01.004 |
Abstract | The plate silencer [1] that consists of an expansion chamber with two side-branch cavities covered by a light panel can achieve a desirable noise reduction in broadband theoretically. The concept is similar to drum silencer [Choy YS, Huang L. Experimental studies of drum-like silencer. J Acoust Soc Am 2002;112:2026-35]. To attain optimal noise reduction, either the membrane of the silencer should be of minimal weight while retaining very high tensile strength or the panel should be kept at very high bending stiffness that is dependent on its geometry and mechanical properties. To achieve such goal, various kinds of composite system such as carbon fibres or aluminum were mounted on light core foam to build a noise reflection panel. A design of composite panels which can provide a reduction in panel weight as well as enhance the bending stiffness, is introduced in this paper. Predictions of the new model are to be compared with the normal foam plate in the aspects of noise reflection capability and performance of noise abatement apart from the material properties. |
Keywords | carbon-fibre; foam; vibration; composite panels; composite systems; expansion chambers; high-tensile strengths; noise reductions; noise reflections; optimal noise; reducing noise; ventilation systems |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
330105. Architectural science and technology | |
401701. Acoustics and noise control (excl. architectural acoustics) | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Hong Kong Polytechnic University, China |
University of New Orleans, United States | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q0q5z/composite-panels-for-reducing-noise-in-air-conditioning-and-ventilation-systems
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