Nonlinear Dynamics and Power Generation on a New Bistable Piezoelectric-Electromagnetic Energy Harvester
Joint Authors
Yao, Minghui
Liu, Pengfei
Wang, Hongbo
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-29, 29 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-04
Country of Publication
Egypt
No. of Pages
29
Main Subjects
Abstract EN
This paper focuses power generation and nonlinear dynamic behaviors on a new bistable piezoelectric-electromagnetic energy harvester.
Three different kinds of piezoelectric cantilever beam structures, which include the monostable piezoelectric cantilever beam, the bistable piezoelectric cantilever beam with spring and magnet, and the bistable piezoelectric cantilever beam with spring, magnet, and coil, are designed.
The power generation efficiency and dynamic behaviors for each structure are experimentally studied, respectively.
Due to the spring introduced, the system easily goes through the potential barrier.
Experimental results show that the power generation structure of the bistable piezoelectric-electromagnetic harvester can vibrate between two steady states in a wider range of the frequency.
Therefore, the effective frequency bandwidth is broadened about 2 Hz when the spring is introduced under the condition of the suitable magnetic distance.
Comparing with the power generation efficiency for three different kinds of structures, it is found that the bistable piezoelectric-electromagnetic harvester has the optimum characteristics, which include the optimal magnetic distance of 15 mm, the optimal load of 8 MΩ, and the parameters variation law of coils.
For this structure, the influences of the external excitation and the magnetic distance on the output voltage and dynamic behaviors of the system are examined.
American Psychological Association (APA)
Yao, Minghui& Liu, Pengfei& Wang, Hongbo. 2020. Nonlinear Dynamics and Power Generation on a New Bistable Piezoelectric-Electromagnetic Energy Harvester. Complexity،Vol. 2020, no. 2020, pp.1-29.
https://search.emarefa.net/detail/BIM-1142508
Modern Language Association (MLA)
Yao, Minghui…[et al.]. Nonlinear Dynamics and Power Generation on a New Bistable Piezoelectric-Electromagnetic Energy Harvester. Complexity No. 2020 (2020), pp.1-29.
https://search.emarefa.net/detail/BIM-1142508
American Medical Association (AMA)
Yao, Minghui& Liu, Pengfei& Wang, Hongbo. Nonlinear Dynamics and Power Generation on a New Bistable Piezoelectric-Electromagnetic Energy Harvester. Complexity. 2020. Vol. 2020, no. 2020, pp.1-29.
https://search.emarefa.net/detail/BIM-1142508
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1142508