Efficient harmonic oscillator chain energy harvester driven by colored noise

We study the performance of an electromechanical harmonic oscillator chain as an energy harvester to extract power from finite-bandwidth ambient random vibrations, which are modelled by colored noise. The proposed device is numerically simulated and its performance assessed by means of the net elect...

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Autores principales: Romero-Bastida, M., López, Juan M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7458926/
https://www.ncbi.nlm.nih.gov/pubmed/32868855
http://dx.doi.org/10.1038/s41598-020-71280-8
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author Romero-Bastida, M.
López, Juan M.
author_facet Romero-Bastida, M.
López, Juan M.
author_sort Romero-Bastida, M.
collection PubMed
description We study the performance of an electromechanical harmonic oscillator chain as an energy harvester to extract power from finite-bandwidth ambient random vibrations, which are modelled by colored noise. The proposed device is numerically simulated and its performance assessed by means of the net electrical power generated and its efficiency in converting the external noise-supplied power into electrical power. Our main result is a much enhanced performance, both in the net electrical power delivered and in efficiency, of the harmonic chain with respect to the popular single oscillator resonator. Our numerical findings are explained by means of an analytical approximation, in excellent agreement with numerics.
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spelling pubmed-74589262020-09-01 Efficient harmonic oscillator chain energy harvester driven by colored noise Romero-Bastida, M. López, Juan M. Sci Rep Article We study the performance of an electromechanical harmonic oscillator chain as an energy harvester to extract power from finite-bandwidth ambient random vibrations, which are modelled by colored noise. The proposed device is numerically simulated and its performance assessed by means of the net electrical power generated and its efficiency in converting the external noise-supplied power into electrical power. Our main result is a much enhanced performance, both in the net electrical power delivered and in efficiency, of the harmonic chain with respect to the popular single oscillator resonator. Our numerical findings are explained by means of an analytical approximation, in excellent agreement with numerics. Nature Publishing Group UK 2020-08-31 /pmc/articles/PMC7458926/ /pubmed/32868855 http://dx.doi.org/10.1038/s41598-020-71280-8 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Romero-Bastida, M.
López, Juan M.
Efficient harmonic oscillator chain energy harvester driven by colored noise
title Efficient harmonic oscillator chain energy harvester driven by colored noise
title_full Efficient harmonic oscillator chain energy harvester driven by colored noise
title_fullStr Efficient harmonic oscillator chain energy harvester driven by colored noise
title_full_unstemmed Efficient harmonic oscillator chain energy harvester driven by colored noise
title_short Efficient harmonic oscillator chain energy harvester driven by colored noise
title_sort efficient harmonic oscillator chain energy harvester driven by colored noise
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7458926/
https://www.ncbi.nlm.nih.gov/pubmed/32868855
http://dx.doi.org/10.1038/s41598-020-71280-8
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