Optimal configurations of bistable piezo-composites for energy harvesting

David N Betts; H Alicia Kim; Christopher R Bowen; D J Inman

doi:10.1063/1.3693523

Optimal configurations of bistable piezo-composites for energy harvesting

David N Betts, H Alicia Kim, Christopher R Bowen, D J Inman

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

129 Citations (SciVal)

357 Downloads (Pure)

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.

Original language	English
Article number	114104
Number of pages	4
Journal	Applied Physics Letters
Volume	100
Issue number	11
DOIs	https://doi.org/10.1063/1.3693523
Publication status	Published - 12 Mar 2012

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10.1063/1.3693523

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

Cite this

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Optimal configurations of bistable piezo-composites for energy harvesting

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IAA - Optimum Piezocomposite Energy Harvests for Broadband Operations

Energy Harvesting

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Optimal configurations of bistable piezo-composites for energy harvesting

Abstract

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IAA - Optimum Piezocomposite Energy Harvests for Broadband Operations

Energy Harvesting

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