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
Author Affiliations +
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.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Collet, M. Collet, M. Ouisse, M. Ouisse, M. Ichchou, M. Ichchou, M. Ruzzene, 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); doi: 10.1117/12.883118; https://doi.org/10.1117/12.883118
PROCEEDINGS
13 PAGES


SHARE
Back to Top