Nonlinear techniques for wide-bandwidth resonant energy harvesting

Najib Kacem (1) , Emmanuel Foltête (1) , Sébastien Baguet (2) , Régis Dufour (2) , Sébastien Hentz (3)

1 FEMTO-ST - Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174)
2 DCS - Dynamique et Contrôle des Structures
3 CEA-LETI - Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information

Energy harvesting from motion is presently receiving great worldwide attention as a means to power autonomous systems. Conventional linear vibration energy harvesters are usually designed to be resonantly tuned to the ambient dominant frequency. They have a narrow operating bandwidth that limits their application in real-world environments where the ambient vibrations have their energy distributed over a wide spectrum of frequencies, with significant predominance of low frequency components and frequency tuning is not always possible due to geometrical/dynamical constraints.

Mots clés: nonlinear dynamics; energy harvesting; mixed behavior; simultaneous resonances

Domaines: Vibrations [physics.class-ph]; Vibrations [physics.class-ph]; Micro et nanotechnologies/Microélectronique

Najib Kacem, Emmanuel Foltête, Sébastien Baguet, Régis Dufour, Sébastien Hentz. Nonlinear techniques for wide-bandwidth resonant energy harvesting. 6th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012), Sep 2012, Vienne, Austria. ⟨hal-00759445⟩