Energy harvesting from human motion and bridge vibrations: An evaluation of current nonlinear energy harvesting solutions

Green, Peter L, Papatheou, Evangelos and Sims, Neil D (2013) Energy harvesting from human motion and bridge vibrations: An evaluation of current nonlinear energy harvesting solutions. Journal of Intelligent Material Systems and Structures, 24 (12). pp. 1494-1505. ISSN 1045-389X, 1530-8138

Text JIMSS_2013.pdf - Unspecified Download (4MB)

Abstract

<jats:p> A large quantity of recent research into the harvesting of electrical energy from ambient vibration sources has been focused on the improvement of device performance via the deliberate introduction of dynamic nonlinearities. In addition to this, the realisation that most of these kinetic energy sources are stochastic in nature has led to many studies focusing on the response of energy harvesters to random vibrations (often Gaussian white noise). This differs from early studies in which it was assumed that ambient vibration sources were sinusoidal. The aim of the present study is to take current nonlinear energy harvesting solutions and to numerically analyse their effectiveness when two real ambient vibration sources are used: human walking motion and the oscillation of the midspan of a suspension bridge. This study shows that the potential improvements that can be realised through the introduction of nonlinearities into energy harvesters are sensitive to the type of ambient excitation to which they are subjected. Additionally, the need for more research into the development of low-frequency energy harvesters is emphasised. </jats:p>

Item Type:	Article
Uncontrolled Keywords:	40 Engineering, 7 Affordable and Clean Energy
Depositing User:	Symplectic Admin
Date Deposited:	21 Apr 2016 11:02
Last Modified:	07 Dec 2024 16:11
DOI:	10.1177/1045389x12473379
Related URLs:	Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3000662