Enhancing energy harvesting by a linear stochastic oscillator

被引：6

作者：

Bobryk, R. V. ^{[1
]}

Yurchenko, D. ^{[2
]}

机构：

[1] Jan Kochanowski Univ, Inst Math, Kielce, Poland

[2] Heriot Watt Univ, Inst Mech Proc & Energy Engn, Edinburgh, Midlothian, Scotland

来源：

PROBABILISTIC ENGINEERING MECHANICS | 2016年 / 43卷

关键词：

Damping - Oscillators (mechanical) - Stochastic systems;

D O I：

10.1016/j.probengmech.2015.10.007

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A mathematical model of a linear electromechanical oscillator with a randomly fluctuating damping parameter as an energy harvester is considered. To demonstrate the idea and present an explicit analytical solution the variations of the damping are taken in a form of a telegraphic process. It is shown that substantial enhancement of the harvested energy can be reached if the proposed process has specially selected characteristics. A close relationship with the mean square stability of the oscillator is established. An analytical result for stationary electrical net mean power is presented. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：1 / 4

页数：4

共 26 条

[1] Piezoelectric energy harvesting from broadband random vibrations [J].