期刊
MICROMACHINES
卷 13, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/mi13030388
关键词
piezoelectric; energy harvesting; rotational; offset distance; cantilever beam
类别
资金
- National Natural Science Foundation of China (NSFC) [52177222]
- Independent Innovation Foundation of AECC [ZZCX-2018-017]
- Quanzhou City Science and Technology Program of China [2021CT008]
This paper presents a piezoelectric rotational energy harvester that uses the force of gravity to generate power. With a novel design, the harvester can output sufficient power in a wide frequency range.
Rotational energy harvesting technology has attracted more and more attention recently. This paper presents a piezoelectric rotational energy harvester that can be mounted with an offset distance from the rotation center. The piezoelectric energy harvester is designed to be dynamically excited by the force due to gravity, which causes the piezoelectric cantilever beams in the harvester to vibrate periodically as the harvester rotates. A novel design of the harvester structure with a hollow mass is proposed and analyzed in this paper. Experiments were performed to investigate the design and analysis. A power output of 106 similar to 2308 mu W can be achieved at the rotating frequencies of 0.79 similar to 14 Hz with a piezoelectric cantilever beam in the prototyped energy harvester. Results showed that the prototyped harvester can be mounted on a rotating wheel hub and output sufficient power in a wide frequency range for wireless monitoring sensors.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据