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DINAME2019
DINAME2019
Flexible piezoelectric cantilever under Vortex-Induced Vibrations
Submission Author:
Letícia Madi , SP , Brazil
Co-Authors:
Letícia Madi, CELSO Pupo Pesce, Guilherme Franzini
Presenter: Letícia Madi
doi://10.26678/ABCM.DINAME2019.DIN2019-0075
Abstract
This paper proposes an analytical modeling of a piezoelectric energy harvester. The system is constituted by a cantilevered flexible polymeric cylinder molded over a beam. The beam is covered by an upper and lower layers of piezoelectric material, connected in series to a resistive element. The harvester is considered to exhibit geometric linear behaviour, linear elastic effects of the piezoelectric material and linear coupling to a power harvesting circuit. The excitation of the system has its origin in Vortex-Induced Vibrations. The hydrodynamic loads are introduced by wake oscillator models. Numeric simulations will be performed for analysing the cantilever displacements and electrical power harvested.
Keywords
vortex induced vibrations, wake-oscillator model, energy harvesting, piezoelectric effect
