Comparative Study of Piezoelectric Vortex-Induced Vibration-Based Energy Harvesters with Multi-Stability Characteristics

Rashid Naseer, Huliang Dai, Abdessattar Abdelkefi and Lin Wang
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Rashid Naseer: Department of Mechanical and Aerospace Engineering, New Mexico State University, Las Cruces, NM 88003, USA
Huliang Dai: Department of Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China
Abdessattar Abdelkefi: Department of Mechanical and Aerospace Engineering, New Mexico State University, Las Cruces, NM 88003, USA
Lin Wang: Department of Mechanics, Huazhong University of Science and Technology, Wuhan 430074, China

Energies, 2019, vol. 13, issue 1, 1-24

Abstract: This work reports a comparative study on piezoelectric energy harvesting from vortex-induced vibration (VIV) with multi-stability characteristics by introducing the nonlinear magnetic forces. A lumped-parameter model for the piezoelectric cantilever-cylinder structure is considered for the sake of qualitative investigation. Firstly, the buckling displacement of harvester in monostable and bistable configurations is evaluated by virtue of a static analysis. Then, the coupled frequency and damping of the harvester varying with the electrical load resistance are determined for different values of the spacing distance between magnets. Subsequently, the dynamic behaviors and generated voltage of the harvester in two configurations are elaborately investigated, showing that varying the spacing distance is followed by a shift of lock-in region which is significant for performance optimization according to ambient wind conditions. In addition, the results show the harvester in monostable configuration displays a hardening behavior while a softening behavior takes place in bistable configuration, both of the harvester in two configurations can widen the synchronization region.

Keywords: piezoelectric energy harvesting; vortex-induced vibration; multi-stability; broadband synchronization region; buckling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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