MODE SATURATION, MODE COUPLING AND ENERGY HARVESTING FROM AMBIENT VIBRATION IN A PORTAL FRAME STRUCTURE
Loading...
Date
Authors
Balthazar, J. M. 
Rocha, R. T.
Brasil, R. M. F. L.
Tusset, A. M.
Pontes, B. R. de
Silveira, M.
ASME
Advisor
Coadvisor
Graduate program
Undergraduate course
Journal Title
Journal ISSN
Volume Title
Publisher
Amer Soc Mechanical Engineers
Type
Work presented at event
Access right
Acesso aberto
Abstract
There has been much recent interest in the concepts of electro-mechanical systems that are able to scavenge, or harvest energy from their operating environment. Here, we present the extraction of energy from a simple portal frame structure excited via its second (first symmetric) mode. As 2:1 internal resonance is present between that mode and the first (sway) mode, the phenomenon of mode saturation and energy exchange (modal coupling) occurs. Energy pumped into the system through the second (vertical) mode is partially transferred to the horizontal (sway) mode. This paper presents results of numerical simulations of these phenomena and energy harvesting using a nonlinear piezoelectric material as a means of energy transduction. An evaluation of the energy available for harvesting in each of the considered modes is computed.
Description
Keywords
Language
English
Citation
Proceedings Of The Asme International Design Engineering Technical Conferences And Computers And Information In Engineering Conference, 2014, Vol 8. New York: Amer Soc Mechanical Engineers, 10 p., 2014.
