Duct noise control by using very light composite plate

Choy, Y. S. and Liu, Y. and Lau, K. T. (2012) Duct noise control by using very light composite plate. Advanced Materials Research, 410. pp. 361-365. ISSN 1022-6680

Abstract

A compact flow-through plate silencer is constructed for low frequency noise control by using new reinforced composite plates. The concept comes from the previous theoretical study [1] that in a duct, a clamped supported plate covered with a rigid cavites. The structural property of the very light plate with high bending stiffness is very crucial element in such plate silencer. In this study, an approach to fabricate new reinforced composite panel with light weight and high bending stiffness is developed in order to realize the function of this plate silencer practically. The performance of two plate silencer with the stopband from 229 to 618Hz in which the transmission loss is higher than 10 dB over the whole frequency band can be achieved.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published Version due to publisher copyright restrictions. A version of the paper was presented at PFAM 20: 20th International Symposium on Processing and Fabrication of Advanced Materials, 15-18 Dec 2011,Hong Kong, China.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - No Department
Date Deposited: 16 Feb 2013 23:34
Last Modified: 17 Oct 2014 04:14
Uncontrolled Keywords: bending stiffness; flowthrough; light composites; light weight; low-frequency noise; reinforced composite plates; reinforced composites; stopband; theoretical study; transmission loss; two plates
Fields of Research : 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0913 Mechanical Engineering > 091301 Acoustics and Noise Control (excl. Architectural Acoustics)
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.4028/www.scientific.net/AMR.410.361
URI: http://eprints.usq.edu.au/id/eprint/21488

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