Enhanced vibrational energy harvesting using non-linear stochastic resonance

Colin McInnes, Daniel Gorman, Matthew Cartmell

Research output: Contribution to journalArticle

207 Citations (Scopus)
19 Downloads (Pure)

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.
Original languageEnglish
Pages (from-to)655-662
Number of pages7
JournalJournal of Sound and Vibration
Volume318
Issue number4-5
DOIs
Publication statusPublished - 23 Dec 2008

Keywords

  • vibrational energy harvesting
  • vibrartions
  • stochastic resonance
  • mechanical engineering

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