Design, modeling and experimental validation of a low-frequency cantilever triboelectric energy harvester
| Autor: | Yaowen Yang, Deepesh Upadrashta, Chaoyang Zhao, Liya Zhao |
|---|---|
| Přispěvatelé: | School of Civil and Environmental Engineering |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Cantilever 020209 energy Acoustics Vibration Energy Harvesting 02 engineering and technology Industrial and Manufacturing Engineering Acceleration 020401 chemical engineering 0202 electrical engineering electronic engineering information engineering 0204 chemical engineering Electrical and Electronic Engineering Triboelectric effect Civil and Structural Engineering Energy Civil engineering [Engineering] Mechanical Engineering Electric potential energy Broadened Bandwidth 0913 Mechanical Engineering 0914 Resources Engineering and Extractive Metallurgy 0915 Interdisciplinary Engineering Building and Construction Pollution Vibration General Energy Energy (signal processing) Beam (structure) Voltage |
| Popis: | In this paper, a novel cantilever triboelectric energy harvester (TEH) working on the contact-separation mode is proposed for low-frequency vibration energy harvesting. An electro-mechanical model of TEH with non-parallel contact surfaces is derived by evaluating the total electrical energy between two surfaces. One merit of the proposed harvester is its simple design for easy implementation. The performance of TEH is investigated theoretically and experimentally, and the results show that it can harvest energy from broadband vibration sources. A peak output voltage of 25 V is achieved from the harvester under a base acceleration of 0.5 g with excitation frequency of 8 Hz. Good agreement is observed between the experimental results and analytical predictions. The performance of TEH can be improved by adjusting the gap distance between the top plate and the beam. The proposed triboelectric harvester is shown to be cost-effective to scavenge the low-frequency vibration energy from the ambient environment. |
| Databáze: | OpenAIRE |
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