A novel parametrically excited non-linear energy harvester

被引：41

作者：

Ma, Tian-Wei ^{[1
]}

Zhang, Hui ^{[1
]}

Xu, Ning-Shou ^{[1
]}

机构：

[1] Univ Hawaii Manoa, Dept Civil & Environm Engn, Honolulu, HI 96822 USA

来源：

MECHANICAL SYSTEMS AND SIGNAL PROCESSING | 2012年 / 28卷

基金：

美国国家科学基金会;

关键词：

Energy harvesting; Parametrical resonance; Electromagnetic induction;

D O I：

10.1016/j.ymssp.2012.01.017

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this study, a method utilizing parametrical resonance for harvesting energy from low-frequency vibrations was investigated. A pendulum-type architecture with electromagnetic induction as the energy conversion mechanism was proposed. A prototype device with a natural frequency of approximately 2 Hz was fabricated and evaluated experimentally. The performance of the device was studied theoretically and numerically. The results were validated by experiments. It was found that the numerical results were consistent with the experimental measurements, while the theoretical analysis slightly overestimated the power output. In the cases considered, the proposed device demonstrated qualitatively different behaviors as compared to a conventional linear device. Such difference, e.g. broadened bandwidth and increased power output at higher damping levels, may be advantageous in certain applications. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：323 / 332

页数：10

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