Optimum load for energy harvesting with nonlinear oscillators

Andrea Cammarano, Alicia Gonzalez-Buelga, Simon A Neild, David J Wagg, Steve G Burrow, Daniel J Inman

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

A viable way to increase the band-width of a vibration-based energy harvester is exploiting the frequency response of non-linear oscillators. In the literature there are several works on resonating energy harvesters featuring non-linear oscillators. In the majority of these works, the harvester powers purely resistive loads. Given the complex behaviour of non-linear energy harvesters, it is difficult to identify the optimum load for these kind of devices. The aim of this work is to find the optimal load for a non-linear energy harvester in the case of purely resistive loads. The work, following the analysis of a non-linear energy harvesting with hardening compliance, introduces a methodology based on numerical continuation which can be used to and the optimum load once the characteristics of device as well as the excitation is known.
Original languageEnglish
Title of host publicationIMAC XXXI - proceedings
Publication statusPublished - 2013

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