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Baffle silencer with tunable resonators for adaptive control of variable tonal noise

Pommier-Budinger, Valérie and Cherrier, Olivier Baffle silencer with tunable resonators for adaptive control of variable tonal noise. (2015) Journal of Vibration and Control, 21 (9). 1801-1809. ISSN 1077-5463

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Official URL: http://dx.doi.org/10.1177/1077546313499928

Abstract

This article presents a baffle silencer with tunable resonators consisting of two superimposed and identically perforated plates associated with a partitioned cavity made of thermoplastic resin. One plate is fixed while the other is movable. Displacement of the mobile plate changes the internal shapes of the resonator necks and shifts the resonance frequency of the system to lower values. The contributions of this paper are firstly, the modeling of a panel with tunable resonators made of necks with a variable geometry and a partitioned cavity in resin and, secondly, the use of the model to elaborate a control strategy to attenuate variable tonal noise. All of the theoretical studies are validated by experimental measurements. Final results show the efficiency of the silencer in attenuating a tonal noise that varies between 2000 and 2800 Hz.

Item Type:Article
Additional Information:The definitive version is available at http://online.sagepub.com/ The original PDF of the article can be found at Journal of Vibration and Control website : http://jvc.sagepub.com/content/21/9/1801
HAL Id:hal-01840857
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Ecole nationale supérieure des Mines d'Albi-Carmaux - IMT Mines Albi (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UPS (FRANCE)
Laboratory name:
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Deposited By: valerie budinger
Deposited On:06 Jan 2016 14:00

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