Enhanced vibrational energy harvesting using non-linear stochastic resonance

McInnes, C.R. , Gorman, D.G. and Cartmell, M.P. (2008) Enhanced vibrational energy harvesting using non-linear stochastic resonance. Journal of Sound and Vibration, 318(4-5), pp. 655-662. (doi: 10.1016/j.jsv.2008.07.017)



Publisher's URL: http://dx.doi.org/10.1016/j.jsv.2008.07.017


Stochastic resonance has seen wide application in the physical sciences as a tool to understand weak signal amplification by noise. However, this apparently counter- intuitive phenomenon does not appear to have been exploited as a tool to enhance vibrational energy harvesting. In this note we demonstrate that by adding a periodic excitation to a damped energy harvesting mechanism, the power available from the device is apparently enhanced over a conventional unexcited mechanism. A simple model of such a device is proposed and investigated to explore the use of stochastic resonance to enhance vibrational energy harvesting.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Cartmell, Prof Matthew and McInnes, Professor Colin
Authors: McInnes, C.R., Gorman, D.G., and Cartmell, M.P.
Subjects:T Technology > TJ Mechanical engineering and machinery
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
University Centres > Glasgow Materials Research Initiative
Journal Name:Journal of Sound and Vibration
Journal Abbr.:J. Sound Vib.
ISSN (Online):1095-8568
Published Online:30 August 2008
Copyright Holders:Copyright © 2008 Elsevier
First Published:First published in Journal of Sound and Vibration 318(4/5):655-662
Publisher Policy:Reproduced with permission of the publisher.

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