Ultra-low frequency vibration energy harvesting: Mechanisms, enhancement techniques, and scaling laws

Ruqi Sun; Shengxi Zhou; Li Cheng

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Ultra-low frequency vibration energy harvesting: Mechanisms, enhancement techniques, and scaling laws

机译：Ultra-low frequency vibration energy harvesting: Mechanisms, enhancement techniques, and scaling laws

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摘要

With the increasing demand for clean and sustainable energy, self-powered technologies based on environmental vibrations have attracted a lot of attention recently. Natural vibration sources, exemplified by ocean waves, tall buildings swaying, flow-induced vibrations, human motions, etc, offer abundant energy which usually exhibits ultra-low frequency characteristics. This paper provides a state-of-the-art review on ultra-low frequency vibration energy harvesters and corresponding enhancement methods. Existing designs, underlying principles and associated energy conversion mechanisms are reviewed. Due to the low energy conversion efficiency when the harvesters are directly excited by ultra-low frequency vibrations, enhancement methods are essential. Various issues like principle-based structural optimization, transducer property improvement and combination of hybrid harvesters are discussed. Scaling laws of harvesters, existing challenges and future prospects are presented in view of promoting the development of ultra-low frequency vibration energy harvesters.

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《Energy conversion & management》 |2023年第1期|116585.1-116585.33|共33页
作者
Ruqi Sun; Shengxi Zhou; Li Cheng;
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作者单位

School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China, Department of Mechanical Engineering, The Hong Kong Polytechnic University, 990777, Hong Kong, China;

School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China;

Department of Mechanical Engineering, The Hong Kong Polytechnic University, 990777, Hong Kong, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类
关键词
Ultra-low frequency; Vibration energy harvesting; Enhancement methods; Scaling laws;

Ultra-low frequency vibration energy harvesting: Mechanisms, enhancement techniques, and scaling laws

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