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Frequency response of an energy harvester to harmonic noise : towards stochastic frequency response of nonlinear systems
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Khovanov, Igor A. and Khovanova, N. A. (2017) Frequency response of an energy harvester to harmonic noise : towards stochastic frequency response of nonlinear systems. In: 2017 International Conference on Noise and Fluctuations (ICNF), Vilnius, Lithuania, 20-23 June 2017 ISBN 9781509027606. doi:10.1109/ICNF.2017.7985996
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Official URL: http://dx.doi.org/10.1109/ICNF.2017.7985996
Abstract
Energy harvesting of ambient energy of different forms has attracted considerable attention of researchers from both theoretical and applied fields. Whereas a typical design of energy harvester is based on a resonant structure - a linear oscillator - aimed at a harmonic excitation, in practice the behaviour of a harvester deviates from linear, and ambient excitations have a much more complex structure than a simple sine-wave. Therefore, it is important to develop a framework for a nonlinear harvester design that would target the stochastic nature of vibrations for effective energy harvesting. In this paper such framework is based on stochastic frequency response. Using the suggested framework the performance of a harvester model for soft and hard nonlinearities in stiffness was compared with the linear harvester. The comparison indicates the presence of a novel phenomena linked to stochastic bifurcations observed by varying characteristics of harmonic noise.
Item Type: | Conference Item (Paper) | ||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||
Publisher: | IEEE | ||||||
ISBN: | 9781509027606 | ||||||
Official Date: | 20 July 2017 | ||||||
Dates: |
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DOI: | 10.1109/ICNF.2017.7985996 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||
Conference Paper Type: | Paper | ||||||
Title of Event: | 2017 International Conference on Noise and Fluctuations (ICNF) | ||||||
Type of Event: | Conference | ||||||
Location of Event: | Vilnius, Lithuania | ||||||
Date(s) of Event: | 20-23 June 2017 |
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