Optimal configurations of bistable piezo-composites for energy harvesting

Reference:

Betts, D. N., Kim, H. A., Bowen, C. R. and Inman, D. J., 2012. Optimal configurations of bistable piezo-composites for energy harvesting. Applied Physics Letters, 100 (11), 114104.

Official URL:

http://dx.doi.org/10.1063/1.3693523

Abstract

This paper presents an arrangement of bistable composites combined with piezoelectrics for broadband energy harvesting of ambient vibrations. These non-linear devices have improved power generation over conventional resonant systems and can be designed to occupy smaller volumes than magnetic cantilever systems. This paper presents results based on optimization of bistable composites that enables improved electrical power generation by discovering the optimal configurations for harvesting based on the statics of the device. The optimal device aspect ratio, thickness, stacking sequence, and piezoelectric area are considered. Increased electrical output is found for geometries and piezoelectric configurations, which have not been considered previously.

Details

Item Type	Articles
Creators	Betts, D. N., Kim, H. A., Bowen, C. R. and Inman, D. J.
DOI	10.1063/1.3693523
Departments	Faculty of Engineering & Design > Mechanical Engineering
Research Centres	Aerospace Engineering Research Centre
Publisher Statement	Betts_APL_2012_100_114104.pdf: Copyright 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Betts, D. N., Kim, H. A., Bowen, C. R. and Inman, D. J., 2012. Optimal configurations of bistable piezo-composites for energy harvesting. Applied Physics Letters, 100 (11), 114104, and may be found at http://dx.doi.org/10.1063/1.3693523
Refereed	Yes
Status	Published
ID Code	29616

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