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Efficient harmonic oscillator chain energy harvester driven by colored noise

AuthorsRomero-Bastida, M.; López, Juan M. CSIC ORCID
Issue Date2020
PublisherSpringer Nature
CitationScientific Reports 10: 14306 (2020)
AbstractWe 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.
Publisher version (URL)https://doi.org/10.1038/s41598-020-71280-8
Appears in Collections:(IFCA) Artículos
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