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Proceedings Paper

Semi-active optimization of 2D wave's dispersion into mechanical systems by the mean of periodically distributed shunted piezoelectric patches: a new class of adaptive metamaterials
Author(s): M. Collet; M. Ouisse; M. Ichchou; M. Ruzzene
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Paper Abstract

In this paper, we present an application of the Floquet-Bloch theorem in the context of electrodynamics for vibroacoustique 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 piezo-mechanical systems. By using a specific indicator evaluating the evanescent part Bloch's waves, we optimize, in a second time, the piezoelectric shunting electrical impedance for controlling energy diffusion into the proposed semi-active distributed set of cells. A 3D modeling of semi-distributed distribution of the optimal smart metamaterial is used for validating the obtained cell design.

Paper Details

Date Published: 28 April 2011
PDF: 13 pages
Proc. SPIE 7978, Behavior and Mechanics of Multifunctional Materials and Composites 2011, 79780Y (28 April 2011); doi: 10.1117/12.883118
Show Author Affiliations
M. Collet, Univ. de Franche-Comté (France)
M. Ouisse, Univ. de Franche-Comté (France)
M. Ichchou, Ecole Centrale de Lyon (France)
M. Ruzzene, Georgia Institute of Technology (United States)

Published in SPIE Proceedings Vol. 7978:
Behavior and Mechanics of Multifunctional Materials and Composites 2011
Zoubeida Ounaies; Stefan S. Seelecke, Editor(s)

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