Improvement of vibration energy harvesters through a two-stage design: Power production at single frequency excitation

被引:1
|
作者
Fernando, Joseph S. [1 ]
Sun, Qiao [1 ]
机构
[1] Univ Calgary, Dept Mech & Mfg Engn, Calgary, AB T2N 1N4, Canada
来源
REVIEW OF SCIENTIFIC INSTRUMENTS | 2013年 / 84卷 / 11期
关键词
D O I
10.1063/1.4823791
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A vibration harvester is usually designed to work in resonance responding to source vibration. Many existing types of harvesters use a single mechanical resonator to amplify the excitation vibrations. However, these harvesters are inherently limited in the amount of power that they can produce, due to their design, particularly in the limited number of design parameters. In our study, we propose a two-stage design to improve a harvester's performance both in power production and in bandwidth widening. In this paper, we demonstrate that a two-stage design can increase the power production when the device is intended to operate under a single frequency excitation. Harvester parameters are optimized to provide maximum power production. Power production comparisons between singlestage and two-stage harvesters are made through numerical simulation and experiments. (C) 2013 AIP Publishing LLC.
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页数:7
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