Eventos Anais de eventos
DINAME 2017
XVII International Symposium on Dynamic Problems of Mechanics
AN OVERVIEW OF NONLINEAR PIEZOELECTRIC ENERGY HARVESTING USING A NONLINEAR TWO-DEGREES-OF-FREEDOM PORTAL FRAME PLATFORM
Submission Author:
Rodrigo Tumolin Rocha , SP
Co-Authors:
José Manoel Balthazar, Angelo Marcelo Tusset, Vinicius Piccirillo, Reyolando Brasil, Jorge Luis Palacios Felix
Presenter: José Manoel Balthazar
doi://10.26678/ABCM.DINAME2017.DIN17-0100
Abstract
The objective of this work is to present an overview of energy harvesting using a nonlinear two-degrees-of-freedom portal frame platform with a nonlinear piezoelectric material coupled to one of its columns and externally base-excited. The nonlinear platform possesses two-to-one internal resonance between its two vibration modes and presenting the saturation phenomenon. The nonlinearities of the piezoelectric material are considered by a nonlinear mathematical relation. Here, it is considered an electro-dynamical shaker with harmonic output. The employed methodology to carry out the analysis of this work was: the application of the method of multiple scales to find the best configuration of the parameters, and to find some kind of phenomena due to the two-to-one internal resonance; several numerical simulations were carried out to optimize the energy harvesting through parametrical variations, bifurcation diagrams, stability diagrams. It will be analyzed: the influence of the nonlinearity of the piezoelectric material and of the electro-dynamical shaker on the energy harvesting. Results showed great influence of the nonlinearity of the material and using the electro-dynamical device. It was possible to gain considerably in energy harvesting and stability of the system.
Keywords
energy harvesting, electro-dynamical shaker, saturation phenomenon, nonlinear piezoelectric material, nonlinear portal frame platform
