A MAGNETIC SLIDING AIRFOIL FLUTTER ENERGY HARVESTER

被引：0
|
作者：
Li Z. [1 ]
Lyu W. [1 ]
Ma X. [1 ]
Zhou S. [1 ]
机构：
[1] School of Aeronautics, Northwestern Polytechnical University, Xi’an
来源：
Lixue Xuebao/Chinese Journal of Theoretical and Applied Mechanics | 2023年 / 55卷 / 10期
关键词：
airfoil; electromagnetic; energy harvesting; flutter;
D O I：
10.6052/0459-1879-23-330
中图分类号：
学科分类号：
摘要：
Wind-induced vibrations are a common occurrence in nature and have great potential as a viable energy source. Effectively harvesting energy from the structure’s large amplitude response caused by wind-induced vibrations can power microelectronic devices, however, it is still a significant challenge in the field of energy harvesting. In order to efficiently harvest wind-induced vibration energy, this paper proposes a magnetic sliding airfoil flutter energy harvester. A dynamic model of the harvester is established based on a semi-empirical nonlinear aerodynamic model and the electromechanical coupling coefficient related to the position of the magnets. An experimental prototype is created and a wind tunnel test platform is built. In the experiment, by increasing and decreasing the wind speed, two different initial states are provided for the harvester, and two cut-in wind speeds are discovered 5.2 m/s and 8.3 m/s. A sudden jump phenomenon occurs at 8.3 m/s in downward sweeping wind speed experiments. Two jump points and a multisolution region are found at 6.8 m/s and 8.2 m/s in numerical simulations. The displacement response exhibits a sine waveform, while the output voltage shows a non-sinusoidal waveform with significant even-order harmonics. The simulated plunging displacement and voltage output waveform closely match the experimental waveform, confirming the accuracy of the model. The output root mean square voltage of the energy harvester increases with the increase of resistance, and the average power shows an increasing-then-decreasing trend with resistance. An analysis is conducted on the impact of load resistance on energy harvesting performance. At the wind speed of 8.6 m/s, the average power in the experiment reaches its maximum value of 7.5 mW when the load resistance is close to the coil’s resistance. Overal, this article provides a new design approach for efficient flutter-based energy harvesters, offering a reference for the design of other forms of wind-induced vibration energy harvesters such as galloping-induced and vortex-induced vibration. © 2023 Chinese Journal of Theoretical and Applied Mechanics Press. All rights reserved.
引用
收藏
页码：2146 / 2155
页数：9
相关论文
共 31 条
  • [1] Yang Tao, Zhou Shengxi, Cao Qingjie, Et al., Some advances in nonlinear vibration energy harvesting technology, Chinese Journal of Theoretical and Applied Mechanics, 53, 11, pp. 2894-2909, (2021)
  • [2] Tian Haigang, Shan Xiaobiao, Zhang Jubin, Et al., Output characteristics investigation of airfoil-based flutter piezoelectric energy harvester, Chinese Journal of Theoretical and Applied Mechanics, 53, 11, pp. 3016-3024, (2021)
  • [3] Yang Jie, Xu Zhuo, An Kun, Et al., MEMS vibration energy harvester based on the piezoelectric and magnetoelectric effect, Micronanoelectronic Technology, 52, 2, pp. 103-107, (2015)
  • [4] Yang Z, Zhou S, Zu J, Et al., High-performance piezoelectric energy harvesters and their applications, Joule, 2, 4, pp. 642-697, (2018)
  • [5] Zhao L, Zou H, Gao Q, Et al., Design, modeling and experimental investigation of a magnetically modulated rotational energy harvester for low frequency and irregular vibration, Science China-Technological Sciences, 63, 10, pp. 2051-2062, (2020)
  • [6] Xu Zhenlong, Shan Xiaobiao, Xie Tao, A review of broadband piezoelectric vibration energy harvester, Journal of Vibration and Shock, 37, 8, pp. 190-199, (2018)
  • [7] Wang J, Geng L, Ding L, Et al., The state-of-the-art review on energy harvesting from flow-induced vibrations, Applied Energy, 267, (2020)
  • [8] Li Z, Zhou S, Yang Z., Recent progress on flutter‐ based wind energy harvesting, International Journal of Mechanical System Dynamics, 2, 1, pp. 82-98, (2022)
  • [9] Song Rujun, Shan Xiaobiao, Yang Xianhai, Et al., A review of fluid energy capture technology based on piezoelectric energy harvesters, Journal of Vibration and Shock, 38, 17, pp. 244-250, (2019)
  • [10] Zhao Xiang, Li Siyi, Li Yinghui, The research on damage detection of curved beam based on piezoelectric vibration energy harvester, Chinese Journal of Theoretical and Applied Mechanics, 53, 11, pp. 3035-3044, (2021)
1234