Improving the galloping energy harvesting performance with magnetic coupling

被引:38
作者
Li, Hai-Tao [1 ]
Ren, He [1 ]
Cao, Fan [1 ]
Qin, Wei-Yang [2 ]
机构
[1] North Univ China, Dept Engn Mech, Taiyuan 030051, Peoples R China
[2] Northwestern Polytech Univ, Dept Engn Mech, Xian 710072, Peoples R China
基金
中国国家自然科学基金;
关键词
Galloping energy harvester; Magnetic coupling; Wind tunnel test; WIND ENERGY; VIBRATION;
D O I
10.1016/j.ijmecsci.2022.107785
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Although wind energy is plenty in the realistic world, the low-speed wind energy usually can't be harvested efficiently. In this study, a novel galloping energy harvester is proposed based on two types of magnetic effect so as to improve the harvesting performance in the low-speed wind environment. The proposed energy harvester can evolve into three monostable versions according to the fixed magnets' number and location, i.e., the linear monostable galloping energy harvester (L-GEH), the wake monostable galloping energy harvester (WM-GEH) and the improved monostable galloping energy harvester (IM-GEH). A unified theoretical model covering the three versions is developed based on the extended Hamilton's theory. Corresponding numerical and experimental studies are conducted for comparative analysis. Compared to the results of the L-GEH and WM-GEH, the IM-GEH makes a great improvement in reducing the critical galloping wind speed and increasing the output power. The parameter analysis is conducted to describe the relationship between wind speed and galloping frequency. The computational fluid dynamics (CFD) analysis is carried out to reveal the underlying mechanism of performance enhancement. It is found that for the IM-GEH, the time required for boundary layer separation is decreased, thereby leading to the dense vortices and improving the efficiency of wind energy harvesting.
引用
收藏
页数:14
相关论文
共 59 条
  • [1] Piezoelectric energy harvesting from transverse galloping of bluff bodies
    Abdelkefi, A.
    Hajj, M. R.
    Nayfeh, A. H.
    [J]. SMART MATERIALS AND STRUCTURES, 2013, 22 (01)
  • [2] Al-Qatatsheh A, 2020, SENSORS SWITZERLAND, V20, P1
  • [3] A broadband bi-stable flow energy harvester based on the wake-galloping phenomenon
    Alhadidi, A. H.
    Daqaq, M. F.
    [J]. APPLIED PHYSICS LETTERS, 2016, 109 (03)
  • [4] Potential well escape in a galloping twin-well oscillator
    Alhussein, Hussam
    Daqaq, Mohammad F.
    [J]. NONLINEAR DYNAMICS, 2020, 99 (01) : 57 - 72
  • [5] Energy harvesting from transverse galloping
    Barrero-Gil, A.
    Alonso, G.
    Sanz-Andres, A.
    [J]. JOURNAL OF SOUND AND VIBRATION, 2010, 329 (14) : 2873 - 2883
  • [6] Aeroelastic flutter energy harvester design: the sensitivity of the driving instability to system parameters
    Bryant, Matthew
    Wolff, Eric
    Garcia, Ephrahim
    [J]. SMART MATERIALS AND STRUCTURES, 2011, 20 (12)
  • [7] Improved Flow-Induced Vibration Energy Harvester by Using Magnetic Force: An Experimental Study
    Cao, Dongxing
    Ding, Xiangdong
    Guo, Xiangying
    Yao, Minghui
    [J]. INTERNATIONAL JOURNAL OF PRECISION ENGINEERING AND MANUFACTURING-GREEN TECHNOLOGY, 2021, 8 (03) : 879 - 887
  • [8] Enhanced frequency synchronization for concurrent aeroelastic and base vibratory energy harvesting using a softening nonlinear galloping energy harvester
    Chen, Shun
    Eager, David
    Zhao, Liya
    [J]. JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES, 2022, 33 (05) : 687 - 702
  • [9] Orientation of bluff body for designing efficient energy harvesters from vortex-induced vibrations
    Dai, H. L.
    Abdelkefi, A.
    Yang, Y.
    Wang, L.
    [J]. APPLIED PHYSICS LETTERS, 2016, 108 (05)
  • [10] Micropower Generation Using Cross-Flow Instabilities: A Review of the Literature and Its Implications
    Daqaq, Mohammed F.
    Bibo, Amin
    Akhtar, Imran
    Alhadidi, Ali H.
    Panyam, Meghashyam
    Caldwell, Benjamin
    Noel, Jamie
    [J]. JOURNAL OF VIBRATION AND ACOUSTICS-TRANSACTIONS OF THE ASME, 2019, 141 (03):