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

MA XiaoQing ¹ZHANG Hang ¹MARGIELEWICZ Jerzy ²G.?SKA Damian ²WOLSZCZAK Piotr ³LITAK Grzegorz ³ZHOU ShengXi¹

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作者信息

1. School of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China;Research & Development Institute in Shenzhen,Northwestern Polytechnical University,Shenzhen 518057,China
2. Faculty of Transport and Aviation Engineering,Silesian University of Technology,Krasińskiego 8,Katowice 40-019,Poland
3. Department of Automation,Lublin University of Technology,Nadbystrzycka 36,Lublin 20-618,Poland
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Abstract

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.

Key words

dual-beam structure/piezoelectric energy harvester/theoretical model/nonlinear dynamics

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基金项目

National Natural Science Foundation of China(52161135106)

Science,Technology and Innovation Commission of Shenzhen Municipality(JCYJ201908061536-15091)

International Science and Technology Cooperation Project of Guangdong Province(2021A0505030012)

Innovation Capability Support Plan of Shaanxi Province(2020KJXX-021)

Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University(CX2022001)

111 Project(BP0719007)

National Science Centre,Poland under the project SHENG-2(2021/40/Q/ST8/00362)

出版年

2024

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

参考文献量1

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