Fundamental issues in nonlinear wideband-vibration energy harvesting
Adaptation and Self-Organizing Systems
2013-05-03 v2 Statistical Mechanics
Abstract
Mechanically nonlinear energy harvesters driven by broadband vibrations modeled as white noise are investigated. We derive an upper bound on output power versus load resistance and show that, subject to mild restrictions that we make precise, the upper-bound performance can be obtained by a linear harvester with appropriate stiffness. Despite this, nonlinear harvesters can have implementation-related advantages. Based on the Kramers equation, we numerically obtain the output power at weak coupling for a selection of phenomenological elastic potentials and discuss their merits.
Keywords
Cite
@article{arxiv.1209.3184,
title = {Fundamental issues in nonlinear wideband-vibration energy harvesting},
author = {Einar Halvorsen},
journal= {arXiv preprint arXiv:1209.3184},
year = {2013}
}
Comments
7 pages, 6 figures, published in Phys. Rev. E