Title: Structural acoustic modelling of three dimensional enclosed sound fields with active/passive piezoelectric networks

Authors: Moustafa Al-Bassyiouni

Addresses: Department of Mechanical Engineering, University of Maryland, College Park, MD 20742, USA

Abstract: In this paper, analytical effort for modelling piezoelectric-structural acoustic interactions of sound transmission through a flexible smart panel into an enclosure is presented. A spherical wave is transmitted into a rectangular enclosure through a flexible panel, while piezoelectric patches, bonded on the panel, are used as actuators and /or passive dampers. The developed model accounts for panel interactions with both the external and enclosed sound fields as well as the bonded piezoelectric patches, which makes it appealing for a broad field of model-based active, passive, and hybrid noise control schemes.

Keywords: structural acoustics; enclosed sound fields; piezoelectric shunt; acoustic modelling; smart panels; piezoelectric networks; sound transmission; vehicle noise; noise control.

DOI: 10.1504/IJVNV.2008.020108

International Journal of Vehicle Noise and Vibration, 2008 Vol.4 No.1, pp.1 - 16

Published online: 26 Aug 2008 *

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