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Título: | Enhancing energy harvesting by coupling monostable oscillators |
Autor: | Peña Rosselló, Julián; Wio, Horacio S. CSIC ORCID; Deza, Roberto R.; Hänggi, Peter | Fecha de publicación: | 2017 | Editor: | Springer Nature | Citación: | European Physical Journal B 90: 34 (2017) | Resumen: | 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. | Descripción: | arXiv:1612.09209v1 | Versión del editor: | https://doi.org/10.1140/epjb/e2017-70703-x | URI: | http://hdl.handle.net/10261/170750 | DOI: | 10.1140/epjb/e2017-70703-x | Identificadores: | doi: 10.1140/epjb/e2017-70703-x e-issn: 1434-6036 issn: 1434-6028 |
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