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Chaotic Dynamics-Based Analysis of Broadband Piezoelectric Vibration Energy Harvesting Enhanced by Using Nonlinearity
Joint Authors
Cheng, Congcong
Chen, Zhongsheng
Shi, Hongwu
Guo, Bin
Yang, Yongmin
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-01-21
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Nonlinear magnetic forces are always used to enlarge resonant bandwidth of vibration energy harvesting systems with piezoelectric cantilever beams.
However, how to determine properly the distance between two magnets is one of the key engineering problems.
In this paper, the Melnikov theory is introduced to overcome it.
Firstly, the Melnikov state-space model of the nonlinear piezoelectric vibration energy harvesting (PVEH) system is built.
Based on it, chaotic dynamics mechanisms of achieving broadband PVEH by nonlinearity are exposed by potential function of the unperturbed nonlinear PVEH system.
Then the corresponding Melnikov function of the nonlinear PVEH system is defined, based on which two Melnikov necessary conditions of determining the distance are obtained.
Finally, numerical simulations are done to testify the theoretic results.
The results demonstrate that the distance is closely related to the excitation amplitude and frequency once geometric and material parameters are fixed.
Under a single-frequency excitation, the nonlinear PVEH system can generate a periodic vibration around a stable point, a large-amplitude vibration around two stable points, or a chaotic vibration.
The proposed method is very valuable for optimally designing and utilizing nonlinear broadband PVEH devices in engineering applications.
American Psychological Association (APA)
Chen, Zhongsheng& Guo, Bin& Cheng, Congcong& Shi, Hongwu& Yang, Yongmin. 2016. Chaotic Dynamics-Based Analysis of Broadband Piezoelectric Vibration Energy Harvesting Enhanced by Using Nonlinearity. Shock and Vibration،Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1119030
Modern Language Association (MLA)
Chen, Zhongsheng…[et al.]. Chaotic Dynamics-Based Analysis of Broadband Piezoelectric Vibration Energy Harvesting Enhanced by Using Nonlinearity. Shock and Vibration No. 2016 (2016), pp.1-11.
https://search.emarefa.net/detail/BIM-1119030
American Medical Association (AMA)
Chen, Zhongsheng& Guo, Bin& Cheng, Congcong& Shi, Hongwu& Yang, Yongmin. Chaotic Dynamics-Based Analysis of Broadband Piezoelectric Vibration Energy Harvesting Enhanced by Using Nonlinearity. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-11.
https://search.emarefa.net/detail/BIM-1119030
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119030