This paper investigates the complicated dynamic behavior and power generation efficiency of the cantilevered laminated composite piezoelectric beam with the unilateral layer separate. The effect of the external excitation on the voltage output, the impacts of the layered length of composite layers and the influence of the magnetic distance on the voltage output and the effective frequency bandwidth are examined. Simultaneously, the output voltage and the effective frequency bandwidth of the traditional cantilevered laminated composite piezoelectric beam are measured experimentally to verify the developed model. The amplitude of the harmonic excitation is given the certain value and is not changed. Experimental results show that the developed structure has lower natural frequency, great voltage output and great effective frequency bandwidth when the length of the separate parts between composite layers is in the range. For the different layered lengths of the developed bistable piezoelectric beam, there exist the optimal magnetic distance and an optimal layered length, respectively. The power generation efficiency of the developed bistable piezoelectric beam is better than that of the developed monostable piezoelectric beam. When the layered length of the separate parts between composite layers is optimal, the voltage output of the piezoelectric beam has four peak voltages. In addition, the power generation efficiency of the developed structure are superior to that of the traditional one. The maximum peak voltage of this structure is 6.73 times than that of the traditional piezoelectric beam, and its effective frequency bandwidth promotes 8.4 times.
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ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
September 18–20, 2017
Snowbird, Utah, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-5825-7
PROCEEDINGS PAPER
Experimental Study on Power Generation and Dynamical Behavior of the Cantilevered Piezoelectric Beam With the Unilateral Layer Separate
Wei Xia,
Wei Xia
Beijing University of Technology, Beijing, China
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Ming Hui Yao,
Ming Hui Yao
Beijing University of Technology, Beijing, China
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Wei Zhang
Wei Zhang
Beijing University of Technology, Beijing, China
Search for other works by this author on:
Wei Xia
Beijing University of Technology, Beijing, China
Ming Hui Yao
Beijing University of Technology, Beijing, China
Wei Zhang
Beijing University of Technology, Beijing, China
Paper No:
SMASIS2017-3778, V001T07A004; 9 pages
Published Online:
November 9, 2017
Citation
Xia, W, Yao, MH, & Zhang, W. "Experimental Study on Power Generation and Dynamical Behavior of the Cantilevered Piezoelectric Beam With the Unilateral Layer Separate." Proceedings of the ASME 2017 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Volume 1: Development and Characterization of Multifunctional Materials; Mechanics and Behavior of Active Materials; Bioinspired Smart Materials and Systems; Energy Harvesting; Emerging Technologies. Snowbird, Utah, USA. September 18–20, 2017. V001T07A004. ASME. https://doi.org/10.1115/SMASIS2017-3778
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