Eventos Anais de eventos
MECSOL 2022
8th International Symposium on Solid Mechanics
Vibration Energy Harvesting Using a Two-Degree of Freedom Duffing-type Structure
Submission Author:
Luã Guedes Costa , RJ
Co-Authors:
Luã Guedes Costa, Luciana Loureiro da Silva Monteiro, Marcelo Savi
Presenter: Luã Guedes Costa
doi://10.26678/ABCM.MECSOL2022.MSL22-0028
Abstract
The recent developments in technology and the emergence of Industry 4.0 have been motivating the study of optimized systems and new solutions to improve the employment of networks that use components as self-powered sensors, actuators and small electronic devices. In this regard, the scavenging of wasted forms of energy dissipated in the ambient is a topic that has been receiving great attention during the last few decades, especially the vibration energy. Composite structures utilizing piezoelectric materials are often employed to convert available mechanical energy into electrical energy exploiting the direct piezoelectric effect. In this work, a nonlinear two-degree of freedom Duffing-type energy harvesting system is proposed to enhance the performance of conventional devices. A discrete model is developed and numerical simulations are presented addressing the advantages and disadvantages of the system. Results show large operation bandwidths and power outputs, specially in higher frequencies.
Keywords
energy harvesting, Piezoelectric materials, nonlinear dynamics, chaos, Multiple DoF Systems
