首页|A dual-beam piezo-magneto-elastic wake-induced vibration energy harvesting system for high-performance wind energy harvesting

A dual-beam piezo-magneto-elastic wake-induced vibration energy harvesting system for high-performance wind energy harvesting

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Wind-induced vibration energy harvesting has a great potential for utilizing wind energy to supply power for low-powered devices.To improve the working performance of energy harvesters effectively,a suitable structural design is crucial.This paper proposes a dual-beam piezo-magneto-elastic wake-induced vibration energy harvesting system to enhance the functional per-formance of aeroelastic energy harvesters in environments with variable wind speeds.The system contains two piezoelectric beams coupled by magnets(forming upstream and downstream energy harvesters),and each beam is attached with a foam cylinder.A corresponding dynamic model is provided,and output characteristics are obtained at different wind speeds.Results and experimental verification indicate that both upstream and downstream energy harvesters can realize efficient energy harvesting.When the wind speed exceeds a certain critical value,the amplitudes of the system's displacement and voltage are high.The wind speed threshold value is approximately 1.25 m/s.When the wind speed and magnet spacing are 10.2 m/s and 20 mm,respectively,the output power of the system reaches 4.9×1 0-4 W.Moreover,the wind speed threshold value of the proposed system can be adjusted by an equivalent nonlinear restoring force.

dual-beam structurepiezoelectric energy harvestertheoretical modelnonlinear dynamics

MA XiaoQing、ZHANG Hang、MARGIELEWICZ Jerzy、G.?SKA Damian、WOLSZCZAK Piotr、LITAK Grzegorz、ZHOU ShengXi

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

Research & Development Institute in Shenzhen,Northwestern Polytechnical University,Shenzhen 518057,China

Faculty of Transport and Aviation Engineering,Silesian University of Technology,Krasińskiego 8,Katowice 40-019,Poland

Department of Automation,Lublin University of Technology,Nadbystrzycka 36,Lublin 20-618,Poland

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National Natural Science Foundation of ChinaScience,Technology and Innovation Commission of Shenzhen MunicipalityInternational Science and Technology Cooperation Project of Guangdong ProvinceInnovation Capability Support Plan of Shaanxi ProvinceInnovation Foundation for Doctor Dissertation of Northwestern Polytechnical University111 ProjectNational Science Centre,Poland under the project SHENG-2

52161135106JCYJ201908061536-150912021A05050300122020KJXX-021CX2022001BP07190072021/40/Q/ST8/00362

2024

10.1007/s11431-023-2421-4

中国科学:技术科学(英文版)
中国科学院

中国科学:技术科学(英文版)

CSTPCDEI
影响因子：1.056
ISSN：1674-7321
年,卷(期)：2024.67(1)
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