TY - GEN
T1 - An underwater magnetically coupled bistable vibration energy harvester using wings
AU - Zou, Hong Xiang
AU - Wei, Ke Xiang
AU - Zhao, Lin Chuan
AU - Zhang, Wen Ming
AU - Zuo, Lei
AU - Qian, Feng
N1 - Funding Information:
The authors gratefully acknowledge the support from the National Natural Science Foundation of China (Grant Nos. 11802091, 11572190, 51728503 and 91748118), the China Postdoctoral Science Foundation (Grant No. 2018M640386), the Natural Science Foundation of Hunan, China (Grant No. 2019JJ50099), the Hunan Province Science and Technology Innovation Program (Grant No. 2018RS3104), the Research Foundation of Education Department of Hunan Province, China (Grant No. 18B389).
Publisher Copyright:
Copyright © 2019 ASME.
PY - 2019
Y1 - 2019
N2 - Piezoelectric flow energy harvesting can be a potential way to yield endless electrical energy for small mechanical systems and wireless sensors. We propose a novel magnetically coupled bistable vibration energy harvester using wings for the applications in the water environment. The water flow energy can be harvested through the induced vibration of wings. The flextensional transducer can be packaged conveniently by using non-contact magnetic coupling mechanism. The magnetic force is amplified by the flextensional structure and transferred to the piezoelectric layer, thereby achieving higher power density and better reliability. A prototype was fabricated and tested in a water flume, which attended a maximum power of about 400 μW and the average power of 55 μW at the water flow velocity of 4 m/s. No significant variation occurred to the performance of the harvester after five days of continuous operation in the water, which indicates that the magnetically coupled vibration energy harvesting method has high reliability in the underwater environment.
AB - Piezoelectric flow energy harvesting can be a potential way to yield endless electrical energy for small mechanical systems and wireless sensors. We propose a novel magnetically coupled bistable vibration energy harvester using wings for the applications in the water environment. The water flow energy can be harvested through the induced vibration of wings. The flextensional transducer can be packaged conveniently by using non-contact magnetic coupling mechanism. The magnetic force is amplified by the flextensional structure and transferred to the piezoelectric layer, thereby achieving higher power density and better reliability. A prototype was fabricated and tested in a water flume, which attended a maximum power of about 400 μW and the average power of 55 μW at the water flow velocity of 4 m/s. No significant variation occurred to the performance of the harvester after five days of continuous operation in the water, which indicates that the magnetically coupled vibration energy harvesting method has high reliability in the underwater environment.
UR - http://www.scopus.com/inward/record.url?scp=85076540852&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85076540852&partnerID=8YFLogxK
U2 - 10.1115/DETC2019-97588
DO - 10.1115/DETC2019-97588
M3 - Conference contribution
AN - SCOPUS:85076540852
T3 - Proceedings of the ASME Design Engineering Technical Conference
BT - 31st Conference on Mechanical Vibration and Noise
PB - American Society of Mechanical Engineers (ASME)
T2 - ASME 2019 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC-CIE 2019
Y2 - 18 August 2019 through 21 August 2019
ER -