能量收集
绕固定轴旋转
压电
旋转(数学)
转动能
功率(物理)
能量(信号处理)
声学
电势能
机械能
转速
压电马达
电气工程
工程类
物理
机械工程
计算机科学
经典力学
人工智能
量子力学
作者
Mingjie Guan,Wei-Hsin Liao
标识
DOI:10.1016/j.enconman.2015.12.061
摘要
This paper presents a piezoelectric energy harvester for rotational motion applications. The piezoelectric energy harvester is mounted on a rotating system in which the axis of rotation is more or less parallel to the Earth’s surface. As the harvester rotates, the piezoelectric elements in the energy harvester are repeatedly deformed to generate electrical power. A novel design of the harvesting structure is proposed in this paper and analyzed theoretically. Experiments were conducted to validate the concept and analysis. Power output of 83.5–825 μW is achieved at the rotating frequencies of 7–13.5 Hz with a prototype of rotational energy harvester. Results show that the harvester can offer sufficient power for low-power wireless transmitters.
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