Analysis of multiple-duct variable area perforated tube resonators

Kar, T. ; Sharma, P. P. R. ; Munjal, M. L. (2006) Analysis of multiple-duct variable area perforated tube resonators International Journal of Acoustics and Vibration, 11 (1). pp. 19-26. ISSN 1027-5851

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Official URL: http://www.iiav.org/ijav/content/volumes/11_2006_1...

Abstract

Conical concentric tube resonators are often used in commercial automotive mufflers. These are characterised by wave-coupling phenomenon across interacting ducts. Using a one-dimensional control volume approach, a mathematical model is presented for a generalised configuration of variable area perforated tube resonators. The analysis is applied to different configurations that account for waves in the incompressible mean flow and in the acoustic coupling between the interacting ducts due to the admittance of the intervening perforates. The problem has been solved by means of the Peano-Baker's series of matrix calculus, and the transmission loss results have been outlined. The predictions have been validated against the three-dimensional finite element analysis.

Item Type:Article
Source:Copyright of this article belongs to International Institute of Acoustics and Vibration.
ID Code:75292
Deposited On:22 Dec 2011 06:29
Last Modified:22 Dec 2011 06:29

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