Abstract : This paper presents a nonlinear model that allows accurate consideration of the losses of piezoelectric harvesters with strong electromechanical coupling coefficient. The model takes mechanical and dielectric nonlinearities into account and is experimentally validated on a PMN-PT based cantilever at various acceleration levels.
David Gibus, Pierre Gasnier, Adrien Morel, Adrien Badel. Nonlinear modelling of strongly coupled piezoelectric harvesters. 10th National Days on Energy Harvesting and Storage, Jun 2021, Grenoble, France. ⟨hal-03258913v2⟩