Chaos in a non-linear non-buckled microresonator - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2022

Chaos in a non-linear non-buckled microresonator

Libor Rufer
Skandar Basrour

Résumé

Chaos is a phenomenon describing the complex dynamics of many systems, from the evolution of the weather to the dynamics of cosmic entities. Since a few decades, generating chaos from a physical system has triggered a lot of research, especially in the optical domain. In the mechanical domain, chaos generation has been investigated mainly with buckled structures. These bistable systems enter in a chaotic regime upon the application of a strong enough alternative force. However, in the micromechanical domain, buckling a structure is demanding and typically requires a large voltage, incompatible with available technology. In this paper, we describe a new way of generating chaos from a Micro Electro-Mechanical System (MEMS) using the dynamical bistability of a nonlinear system, activated by a modulated signal within the resonance of the system. We measured the generated chaos experimentally with a microresonator, and characterized it with Poincaré sections and Lyapunov exponent measurements. In our case, the chaos generation does not need any specific requirement, and it is readily applicable in many structures, opening a new path for MEMS-based chaos generators.

Fichier principal
Vignette du fichier
enoc2020_Final.pdf (887.03 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04163730 , version 1 (17-07-2023)

Licence

Paternité - Pas d'utilisation commerciale

Identifiants

  • HAL Id : hal-04163730 , version 1

Citer

Martial Defoort, Libor Rufer, Skandar Basrour. Chaos in a non-linear non-buckled microresonator. 10th European Nonlinear Dynamics Conference (ENOC 2020, repoussé à 2022), Jul 2022, Lyon, France. ⟨hal-04163730⟩

Collections

UGA CNRS TIMA
15 Consultations
10 Téléchargements

Partager

Gmail Facebook X LinkedIn More