Energy harvesting devices designed with intentional nonlinearities offer the possibility of increased performance under broadband excitations and realistic environmental conditions. This work considers an energy harvesting system based on the response of an attachment with strong nonlinear behavior. The electromechanical coupling is achieved with a piezoelectric element across a resistive load. When the system is subject to harmonic excitation, the harvested power from the nonlinear system exhibits a wider interval of frequencies over which the harvested power is significant, although an equivalent linear device offers greater efficiency at its design frequency. However, for impulsive excitation, the performance of the nonlinear harvesting system exceeds the corresponding linear system in terms of both magnitude of power harvested and the frequency interval over which significant power can be drawn from the mechanical vibrations.
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e-mail: quinn@uakron.edu
e-mail: alt25@uakron.edu
e-mail: avakakis@illinois.edu
e-mail: lbergman@illinois.edu
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February 2011
Research Papers
Energy Harvesting From Impulsive Loads Using Intentional Essential Nonlinearities
D. Dane Quinn,
D. Dane Quinn
Department of Mechanical Engineering,
e-mail: quinn@uakron.edu
University of Akron
, Akron, OH 44325-3903
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Angela L. Triplett,
Angela L. Triplett
Department of Mechanical Engineering,
e-mail: alt25@uakron.edu
University of Akron
, Akron, OH 44325-3903
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Alexander F. Vakakis,
Alexander F. Vakakis
Department of Mechanical Science and Engineering,
e-mail: avakakis@illinois.edu
University of Illinois at Urbana-Champaign
, 1206 West Green Street, Urbana, IL 61801
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Lawrence A. Bergman
Lawrence A. Bergman
Department of Aerospace Engineering,
e-mail: lbergman@illinois.edu
University of Illinois at Urbana-Champaign
, 104 S. Wright Street, Urbana, IL 61801
Search for other works by this author on:
D. Dane Quinn
Department of Mechanical Engineering,
University of Akron
, Akron, OH 44325-3903e-mail: quinn@uakron.edu
Angela L. Triplett
Department of Mechanical Engineering,
University of Akron
, Akron, OH 44325-3903e-mail: alt25@uakron.edu
Alexander F. Vakakis
Department of Mechanical Science and Engineering,
University of Illinois at Urbana-Champaign
, 1206 West Green Street, Urbana, IL 61801e-mail: avakakis@illinois.edu
Lawrence A. Bergman
Department of Aerospace Engineering,
University of Illinois at Urbana-Champaign
, 104 S. Wright Street, Urbana, IL 61801e-mail: lbergman@illinois.edu
J. Vib. Acoust. Feb 2011, 133(1): 011004 (8 pages)
Published Online: December 8, 2010
Article history
Received:
February 11, 2010
Revised:
September 1, 2010
Online:
December 8, 2010
Published:
December 8, 2010
Citation
Quinn, D. D., Triplett, A. L., Vakakis, A. F., and Bergman, L. A. (December 8, 2010). "Energy Harvesting From Impulsive Loads Using Intentional Essential Nonlinearities." ASME. J. Vib. Acoust. February 2011; 133(1): 011004. https://doi.org/10.1115/1.4002787
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