Optimum load for energy harvesting with non-linear oscillators

A. Cammarano*, A. Gonzalez-Buelga, S. A. Neild, D. J. Wagg, S. G. Burrow, D. J. Inman

*Corresponding author for this work

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 find the optimum load once the characteristics of device as well as the excitation is known.

Original languageEnglish
Title of host publicationSpecial Topics in Structural Dynamics - Proceedings of the 31st IMAC, A Conference on Structural Dynamics, 2013
Pages555-560
Number of pages6
Volume6
DOIs
Publication statusPublished - 11 Dec 2013
Event31st International Modal Analysis Conference on Structural Dynamics, IMAC 2013 - Garden Grove, CA, United States
Duration: 11 Feb 201314 Feb 2013

Conference

Conference31st International Modal Analysis Conference on Structural Dynamics, IMAC 2013
CountryUnited States
CityGarden Grove, CA
Period11/02/1314/02/13

Keywords

  • Continuation
  • Electrical load
  • Energy harvesting
  • Non-linear dynamics
  • Optimization

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