Eventos Anais de eventos
DINAME2019
DINAME2019
Exploring the nonlinear dynamics of bistable energy harvester
Submission Author:
Americo Barbosa da Cunha Junior , RJ , Brazil
Co-Authors:
João Peterson, Americo Barbosa da Cunha Junior
Presenter: Americo Barbosa da Cunha Junior
doi://10.26678/ABCM.DINAME2019.DIN2019-0083
Abstract
Recent technology advances and increasing power demands have been encouraging renewable energies research, among which are the energy harvesting technologies. Energy harvesting devices are able to support low power applications such as boarded electrical circuits and sensors, medical electrical implants (e.g. pace-markers) and general low-power-consumption electrical equipment far from power supply, for example. Its concept consists of an electromechanical device able to capture environmental energy, available from natural or artificial sources as heat, pressure differences, vibration, etc, and converting it into an electrical potential. As nonlinearities may improve energy harvesting processes gains, this subject has been the object of study of recent works. Motivated by necessity of investigate in deep the nonlinear phenomena underlying new energy harvesting systems, this work aims to characterize in detail, by means of bifurcation diagrams and attraction basins, a nonlinear dynamical system associated to a bistable electromechanical harvesting device. This characterization is necessary not only to have a better understanding of the basic physics underlying the energy harvesting system, but also to allow the optimization of its performance.
Keywords
nonlinear dynamics, energy harvesting, bifurcation diagrams, basins of attraction
