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

M. Collet; M. Ouisse; M. Ichchou; M. Ruzzene

doi:10.1117/12.883118

28 April 2011 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

M. Collet, M. Ouisse, M. Ichchou, M. Ruzzene

Author Affiliations +

Proceedings Volume 7978, Behavior and Mechanics of Multifunctional Materials and Composites 2011; 79780Y (2011) https://doi.org/10.1117/12.883118
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

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.

Citation Download Citation

M. Collet, M. Ouisse, M. Ichchou, and M. Ruzzene "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", Proc. SPIE 7978, Behavior and Mechanics of Multifunctional Materials and Composites 2011, 79780Y (28 April 2011); https://doi.org/10.1117/12.883118

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