In this paper, we present an application of the Floquet-Bloch theorem in the context of electrodynamics for vibroacoustic power flow optimization by mean of distributed and shunted piezoelectric patches. The main purpose of this work is first to propose a dedicated numerical approach able to compute the multi-modal wave dispersions curves into the whole first Brillouin zone for periodically distributed 2D shunted piezomechanical systems. By using two specific indicators evaluating the evanescent part of Bloch’s waves and the induced electronic damping, we optimize the piezoelectric shunting electrical impedance for controlling energy diffusion into the proposed semi-active distributed set of cells. Sound radiation efficiency is also analyzed for showing the effects of such smart metamaterial for controlling acoustical noise.
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ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 18–21, 2011
Scottsdale, Arizona, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-5471-6
PROCEEDINGS PAPER
Semi-Active Optimization of 2D Wave’s Dispersion Into Shunted Piezocomposite Systems for Controlling Acoustic Interaction Available to Purchase
Manuel Collet,
Manuel Collet
FEMTO-ST UMR CNRS, Besancon, France
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Morvan Ouisse,
Morvan Ouisse
FEMTO-ST UMR CNRS, Besancon, France
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Mohammed Ichchou,
Mohammed Ichchou
University of Lyon, Ecully, France
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Roger Ohayon
Roger Ohayon
Conservatoire National des Arts et Metiers, Paris, France
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Manuel Collet
FEMTO-ST UMR CNRS, Besancon, France
Morvan Ouisse
FEMTO-ST UMR CNRS, Besancon, France
Mohammed Ichchou
University of Lyon, Ecully, France
Roger Ohayon
Conservatoire National des Arts et Metiers, Paris, France
Paper No:
SMASIS2011-5018, pp. 79-87; 9 pages
Published Online:
February 7, 2012
Citation
Collet, M, Ouisse, M, Ichchou, M, & Ohayon, R. "Semi-Active Optimization of 2D Wave’s Dispersion Into Shunted Piezocomposite Systems for Controlling Acoustic Interaction." Proceedings of the ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. ASME 2011 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Volume 1. Scottsdale, Arizona, USA. September 18–21, 2011. pp. 79-87. ASME. https://doi.org/10.1115/SMASIS2011-5018
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