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

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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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APA

Gibus, D., Gasnier, P., Morel, A., Boisseau, S., & Badel, A. (2019). Modelling and design of highly coupled piezoelectric energy harvesters for broadband applications. In Journal of Physics: Conference Series (Vol. 1407). Institute of Physics Publishing. https://doi.org/10.1088/1742-6596/1407/1/012009

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