Enhancing energy harvesting by coupling monostable oscillators

Julián I. Peña Rosselló, Horacio S. Wio (), Roberto R. Deza and Peter Hänggi
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Julián I. Peña Rosselló: Instituto de Investigaciones Físicas de Mar del Plata (IFIMAR
Horacio S. Wio: Instituto de Física de Cantabria (IFCA
Roberto R. Deza: Instituto de Investigaciones Físicas de Mar del Plata (IFIMAR
Peter Hänggi: Universität Augsburg, Institut für Physik, Universitätstrasse 1

The European Physical Journal B: Condensed Matter and Complex Systems, 2017, vol. 90, issue 2, 1-5

Abstract: Abstract The performance of a ring of linearly coupled, monostable nonlinear oscillators is optimized towards its goal of acting as energy harvester – through piezoelectric transduction – of mesoscopic fluctuations, which are modeled as Ornstein-Uhlenbeck noises. For a single oscillator, the maximum output voltage and overall efficiency are attained for a soft piecewise-linear potential (providing a weak attractive constant force) but they are still fairly large for a harmonic potential. When several harmonic springs are linearly and bidirectionally coupled to form a ring, it is found that counter-phase coupling can largely improve the performance while in-phase coupling worsens it. Moreover, it turns out that few (two or three) coupled units perform better than more.

Keywords: Statistical; and; Nonlinear; Physics (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (1)

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DOI: 10.1140/epjb/e2017-70703-x

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