Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Non-ideal magnetopiezoelastic energy harvesting with nonlinear piezoelectric coupling
Submission Author:
Itamar Iliuk , PR
Co-Authors:
Itamar Iliuk, José Manoel Balthazar, Reyolando Brasil, Angelo Marcelo Tusset, Jose Piqueira
Presenter: Itamar Iliuk
doi://10.26678/ABCM.COBEM2017.COB17-1380
Abstract
We examine the behavior of a non-ideal magnetopiezoelastic energy harvesting with nonlinear piezoelectric coupling and driven by a non-ideal energy source. The principal focus in the research is on the effects of synchronization of two cantilever beams and the interaction with the energy source. The forced Duffing equation includes a relative mistuning in the stiffness of the harvesting oscillators. The maximum harvested power was obtained when the angular frequency of the DC motor was approximately with the typical resonance curve. We found a chaotic solution in vicinity of the resonance region of the system operation with the influence of the nonlinear piezoelectric coupling parameter. The maximum dimensionless harvested power over the piezo patches was achieved in a periodic regime.
Keywords
energy harvesting, Piezoelectric, chaos, nonlinear vibrations, nonlinear dynamics.
