A nonlinear piezoelectric energy harvester with magnetic oscillator

被引：248
|
作者：
Tang, Lihua [1 ]
Yang, Yaowen [1 ]
机构：
[1] Nanyang Technol Univ, Sch Civil & Environm Engn, Singapore 639798, Singapore
来源：
APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 09期
关键词：
D O I：
10.1063/1.4748794
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
This letter proposes a magnetic coupled piezoelectric energy harvester (PEH), in which the magnetic interaction is introduced by a magnetic oscillator. For comparison purpose, lumped parameter models are established for the conventional linear PEH, the nonlinear PEH with a fixed magnet, and the proposed PEH with a magnetic oscillator. Both experiment and simulation show the benefits from the dynamics of the magnetic oscillator. In the experiment, nearly 100% increase in the operating bandwidth and 41% increase in the magnitude of the power output are achieved at an excitation level of 2m/s(2). (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4748794]
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页数：4
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