Eventos Anais de eventos
CONEM 2018
X Congresso Nacional de Engenharia Mecânica
Dynamics analysis of the portal frame model with non-ideal drive as an energy harvester
Submission Author:
João Pedro Canisso Valese Norenberg , MS
Co-Authors:
João Pedro Canisso Valese Norenberg, Marcus Varanis, José Manoel Balthazar, Angelo Marcelo Tusset
Presenter: João Pedro Canisso Valese Norenberg
doi://10.26678/ABCM.CONEM2018.CON18-1293
Abstract
Several researchers have been trying to find the best model for generating electrical energy from environmental vibration, that is the best solution for many applications nowadays. Then, in this paper, a model of energy harvesting with a non-ideal force of excitation and nonlinear piezoelectric coupling is proposed. The non-ideal force is a DC motor with an unbalanced mass. And the analysis of the system is performed by means of numerical simulation, that compared an influence of rotation of DC motor with the power harvesting, where this influence is verified for three cases of vibration, one in the region of pre-resonance, other in region of post-resonance and a last in the region of resonance. Hence, it was possible to present the consequence of the Sommerfeld effect in the power harvested and it is shown that this phenomenon is not good to energy harvesting. And to ascertain this effect, it was compared the displacement of structure and angular velocity of DC motor for these cases. Furthermore, the system was analyzed with Wavelet Transform, that allowed to verify when the system have more energy, with more precision.
Keywords
energy harvesting, Piezoelectric, Sommerfeld Effect, Wavelet Transform
