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Piezoelectric Wind Energy Harvesting from Self-Excited Vibration of Square Cylinder
Joint Authors
Wang, Junlei
Ran, Jingyu
Zhang, Min
Wen, Sheng
Zhao, Xingqiang
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-08-14
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Self-excited vibration of a square cylinder has been considered as an effective way in harvesting piezoelectric wind energy.
In present work, both of the vortex-induced vibration and unstable galloping phenomenon process are investigated in a reduced velocity ( U r = U / ω n · D ) range of 4 ≤ U r ≤ 20 with load resistance ranging in 100 Ω ≤ R ≤ 1 MΩ.
The vortex-induced vibration covers presynchronization, synchronization, and postsynchronization branches.
An aeroelectromechanical model is given to describe the coupling of the dynamic equation of the fluid-structure interaction and the equation of Gauss law.
The effects of load resistance are investigated in both the open-circuit and close-circuit system by a linear analysis, which covers the parameters of the transverse displacement, aerodynamic force, output voltage, and harvested power utilized to measure the efficiency of the system.
The highest level of the transverse displacement and the maximum value of harvested power of synchronization branch during the vortex-induced vibration and galloping are obtained.
The results show that the large-amplitude galloping at high wind speeds can generate energy.
Additionally, energy can be harvested by utilization of the lock-in phenomenon of vortex-induced vibration under low wind speed.
American Psychological Association (APA)
Wang, Junlei& Wen, Sheng& Zhao, Xingqiang& Zhang, Min& Ran, Jingyu. 2016. Piezoelectric Wind Energy Harvesting from Self-Excited Vibration of Square Cylinder. Journal of Sensors،Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1110367
Modern Language Association (MLA)
Wang, Junlei…[et al.]. Piezoelectric Wind Energy Harvesting from Self-Excited Vibration of Square Cylinder. Journal of Sensors No. 2016 (2016), pp.1-12.
https://search.emarefa.net/detail/BIM-1110367
American Medical Association (AMA)
Wang, Junlei& Wen, Sheng& Zhao, Xingqiang& Zhang, Min& Ran, Jingyu. Piezoelectric Wind Energy Harvesting from Self-Excited Vibration of Square Cylinder. Journal of Sensors. 2016. Vol. 2016, no. 2016, pp.1-12.
https://search.emarefa.net/detail/BIM-1110367
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1110367