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)

Abstract

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
• Status: Published
• Refereed: Yes
• 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.
• Publisher: Elsevier
• ISSN: 0022-460X
• 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.