MATEC Web Conf.
Volume 241, 2018International Conference on Structural Nonlinear Dynamics and Diagnosis (CSNDD 2018)
|Number of page(s)||4|
|Published online||03 December 2018|
Optimization of vibration energy localization in quasi-periodic structures
Univ. Bourgogne Franche-Comté, FEMTO-ST Institute, CNRS/UFC/ENSMM/UTBM, Department of Applied Mechanics, 25000 Besançon, France
2 Research Laboratory of Mechanics Modeling and Production, National Engineering School of Sfax, Univ. Sfax, 3038 Sfax, Tunisia
* Corresponding author: email@example.com
A mechanical periodic structure in presence of component perturbations can be a seat of a localization of vibration energy. In fact, it is well known that mistuned components have larger response levels than those of perfect components. This results in a localized energy, which can be tapped via harvesting devices. In this study, the dynamic behavior of a quasi-periodic system consisting in weakly connected linear oscillators is investigated. The main objective is to optimize the mistuning parameter, the coupling stiffness and the damping coefficient in order to functionalize the imperfection, which leads to the maximization of the localized vibration energy.
© The Authors, published by EDP Sciences, 2018
This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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