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Energy harvesting from the nonlinear oscillations of magnetic levitation

By B.P. Mann and N.D. Sims

Abstract

This paper investigates the design and analysis of a novel energy harvesting device that uses magnetic levitation to produce an oscillator with a tunable resonance. The governing equations for the mechanical and electrical domains are derived to show the designed system reduces to the form of a Duffing oscillator under both static and dynamic loads. Thus, nonlinear analyses are required to investigate the energy harvesting potential of this prototypical nonlinear system. Theoretical investigations are followed by a series of experimental tests that validate the response predictions. The motivating hypothesis for the current work was that nonlinear phenomenon could be exploited to improve the effectiveness of energy harvesting devices

Publisher: Elsevier
Year: 2009
OAI identifier: oai:eprints.whiterose.ac.uk:8882

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