Eventos Anais de eventos
CONEM 2022
XI Congresso Nacional de Engenharia Mecânica - CONEM 2022
Nonlinear Dynamics of an Oscillator-Pendulum Energy Harvester
Submission Author:
Luã Guedes Costa , RJ
Co-Authors:
Luã Guedes Costa, Virgilio Junior Caetano, Marcelo Savi
Presenter: Luã Guedes Costa
doi://10.26678/ABCM.CONEM2022.CON22-0434
Abstract
Recent developments and concepts in technology as cyber-physical systems, internet of things (IoT), cloud computing and wireless communication procedures require the use of self-powered sensors, actuators and small electronic devices. In this regard, mechanical energy harvesting systems are a promising and viable solution to power standalone devices by converting available environmental mechanical energy into electrical energy, especially through the direct piezoelectric effect. In the latest few decades, several systems have been proposed, many of them containing pendulum- like/bobbing structures in its composition. This work addresses a nonlinear dynamics investigation of a generic oscillator- pendulum energy harvester. Numerical simulations are carried out employing the fourth order Runge-Kutta method. A parametric analysis is developed guided by nonlinear dynamics perspective, identifying the nuances and advantages of this kind of system. A performance analysis is carried out focusing on energy harvesting capacity. Results show complex dynamics and an increase in energy harvesting capacity.
Keywords
energy harvesting, Piezoelectric materials, nonlinear dynamics, chaos, Pendulum Structures
