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Communication Dans Un Congrès Année : 2018

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

Résumé

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.
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Dates et versions

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

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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. ⟨hal-02055654⟩
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