Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6623
Title: Modeling of micro-perforated panels in a complex vibro-acoustic environment using patch transfer function approach
Authors: Maxit, L
Yang, C
Cheng, L 
Guyader, J
Keywords: Excited states
Transfer functions
Tubes (components)
Issue Date: Mar-2012
Publisher: Acoustical Society of America
Source: Journal of the Acoustical Society of America, Mar. 2012, v. 131, no. 3, p. 2118-2130 How to cite?
Journal: Journal of the Acoustical Society of America 
Abstract: A micro-perforated panel (MPP) with a backing cavity is a well known device for efficient noise absorption. This configuration has been thoroughly studied in the experimental conditions of an acoustic tube (Kundt tube), in which the MPP is excited by a normal incident plane wave in one dimension. In a more practical situation, the efficiency of MPP may be influenced by the vibro-acoustic behavior of the surrounding systems as well as excitation. To deal with this problem, a vibro-acoustic formulation based on the patch transfer functions (PTF) approach is proposed to model the behavior of a micro-perforated structure in a complex vibro-acoustic environment. PTF is a substructuring approach, which allows assembling different vibro-acoustic subsystems through coupled surfaces. Upon casting micro-perforations and the flexibility of the MPP under transfer function framework, the proposed PTF formulation provides explicit representation of the coupling between subsystems and facilitates physical interpretation. As an illustration example, application to a MPP with a backing cavity located in an infinite baffle is demonstrated. The proposed PTF formulation is finally validated through comparison with experimental measurements available in the literature.
URI: http://hdl.handle.net/10397/6623
ISSN: 0001-4966
DOI: 10.1121/1.3682055
Rights: Copyright 2012 Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America.
The following article appeared in Maxit, L., Yang, C., Cheng, L., & Guyader, J. -. (2012). Modeling of micro-perforated panels in a complex vibro-acoustic environment using patch transfer function approach. Journal of the Acoustical Society of America, 131(3), 2118-2130 and may be found at http://scitation.aip.org/content/asa/journal/jasa/131/3/10.1121/1.3682055.
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