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Unlocking multidirectional and broadband wind energy harvesting with triboelectric nanogenerator and vortex-induced vibration of sphere

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Unlocking multidirectional and broadband wind energy harvesting with triboelectric nanogenerator and vortex-induced vibration of sphere
A unique oscillating wind-driven triboelectric nanogenerator(OWTENG)based on the sphere's vortex-induced vibration(VIV)behavior is proposed in this study,which can harvest wind energy across a multitude of horizontal directions.With the Euler-Lagrange method,the coupled governing equations of the OWTENG are estab-lished and subsequently validated by experimental tests.The vibrational properties and output performance of the OWTENG for varying wind speeds are analyzed,demonstrat-ing its effectiveness in capturing wind energy across a broad range of wind speeds(from 2.20 m/s to 8.84 m/s),and the OWTENG achieves its peak output power of 106.3 μW at a wind speed of 5.72 m/s.Furthermore,the OWTENG maintains a steady output power across various wind directions within the speed range of 2.20 m/s to 7.63 m/s.Nevertheless,when the wind speed exceeds 7.63 m/s,the vibrational characteristics of the sphere shift based on the wind direction,leading to fluctuations in the OWTENG's output power.This research presents an innovative approach for designing vibrational triboelectric nanogenerators,offering valuable insights into harvesting wind energy from diverse directions and speeds.

wind energy harvestingtriboelectric nanogeneratorvortex-induced vi-bration(VIV)lock-in region

Lanbin ZHANG、Yixiang HE、Bo MENG、Huliang DAI、Lin WANG

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Faculty of Engineering,China University of Geosciences,Wuhan 430074,China

International Joint Research Center for Deep Earth Drilling and Resource Development,Wuhan 430074,China

Hubei Key Laboratory for Engineering Structural Analysis and Safety Assessment,School of Aerospace Engineering,Huazhong University of Science and Technology,Wuhan 430074,China

Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province,College of Physics and Optoelectronic Engineering,Shenzhen University,Shenzhen 518060,Guangdong Province,China

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wind energy harvesting triboelectric nanogenerator vortex-induced vi-bration(VIV) lock-in region

2024

10.1007/s10483-024-3185-8

应用数学和力学(英文版)
上海大学

应用数学和力学(英文版)

影响因子：0.294
ISSN：0253-4827
年,卷(期)：2024.45(11)