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

Abstract : 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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https://hal.archives-ouvertes.fr/hal-02055654
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Submitted on : Friday, March 8, 2019 - 9:56:59 AM
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  • HAL Id : hal-02055654, version 1
  • ARXIV : 1903.05861

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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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