Modelling and design of highly coupled piezoelectric energy harvesters for broadband applications

This paper reports a method to design highly coupled piezoelectric energy harvesters with frequency tuning capabilities using nonlinear electrical techniques. A cantilever beam with two PMN-PT patches has been optimized thanks to both analytical modelling and Finite Element Methods (FEM). The built prototype exhibits a strong electromechanical coupling (k²=17.6%) and a figure of merit (km²Q=12.4) which allow a bandwidth corresponding to 22% of the resonant frequency value.

Domaines

Sciences de l'ingénieur [physics] Vibrations [physics.class-ph] Energie électrique

Fichier principal

PowerMEMS2018_Gibus_extend_final.pdf (845.3 Ko)

Origine	Fichiers produits par l'(les) auteur(s)

David Gibus : Connectez-vous pour contacter le contributeur

https://hal.science/hal-02055654

Soumis le : vendredi 8 mars 2019-09:56:59

Dernière modification le : lundi 9 décembre 2024-03:33:26

Archivage à long terme le : lundi 10 juin 2019-12:19:17

Dates et versions

hal-02055654 , version 1 (08-03-2019)

Identifiants

HAL Id : hal-02055654 , version 1
ARXIV : 1903.05861
DOI : 10.1088/1742-6596/1407/1/012009

Citer

D Gibus, P. Gasnier, A. Morel, S. Boisseau, A. Badel. Modelling and design of highly coupled piezoelectric energy harvesters for broadband applications. PowerMEMS 2018, Dec 2018, Daytona Beach, United States. pp.012009, ⟨10.1088/1742-6596/1407/1/012009⟩. ⟨hal-02055654⟩

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