Energy harvesting from fluid-induced buckling of ionic polymer metal composites

Title
Energy harvesting from fluid-induced buckling of ionic polymer metal composites
Authors
Filippo Cellini차영수Maurizio Porfiri
Keywords
Buckling; energy harvesting; ionic polymer metal composite; Savonius rotor; underwater applications
Issue Date
2014-08
Publisher
Journal of intelligent material systems and structures
Citation
VOL 25, NO 12, 1496-1510
Abstract
In this article, we assess the feasibility of energy harvesting from mechanical buckling of ionic polymer metal composites induced by a steady fluid flow. Specifically, we consider an underwater energy harvester composed of a paddle wheel, a slider-crank mechanism, and two ionic polymer metal composites clamped at both their ends. To enhance electromechanical transduction, the electrodes of the ionic polymer metal composites are split into three parts via a selective platinum deposition process. The system is installed in a water tunnel and experiments are performed to elucidate the influence of both the flow speed and the shunting resistance on energy harvesting. To provide a theoretical interpretation of the experimental results, the classical post-buckling theory of inextensible elastic beams is adapted to predict mechanical deformations and a lumped-circuit model is utilized to estimate the harvested power.
URI
http://pubs.kist.re.kr/handle/201004/50979
ISSN
1045389X
Appears in Collections:
KIST Publication > Article
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