Uniform Stress Distribution of Bimorph by Arc Mechanical Stopper for Maximum Piezoelectric Vibration Energy Harvesting
Abstract
:1. Introduction
2. Modeling and Theoretical Analysis
2.1. Stress and Mode Modeling
2.2. Electromechanical Coupling Modeling
3. Simulation Analysis and Comparison
3.1. Stress and Mode Analysis
3.2. Electromechanical Coupling Analysis
4. Experimental Validation
5. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Symbol | Parameters | Value |
---|---|---|
lb | Bimorph length | 60 mm |
b | Bimorph breadth | 20 mm |
tp | Piezoelectric layer thickness | 0.18 mm |
ts | Substrate layer thickness | 0.14 mm |
lm | Mass length | 10 mm |
mb | Beam mass | 4.6 g |
mt | Tip mass | 7.8 g |
Yp | Piezoelectric layer elasticity | 41.2 GPa |
Ys | Substrate layer elasticity | 110 GPa |
rs | arc stopper radius | 200 mm |
ls | Stopper length | 50 mm |
ds1 | Stopper distance 1 | 4.75 mm |
ds2 | Stopper distance 2 | 6.60 mm |
e31 | Piezo stress coefficient | −15.65 C/m2 |
Cp | Piezoelectric capacitance | 368 nF |
K | M | D | Cp | θ | βF |
---|---|---|---|---|---|
123.58 N/m | 8.904 g | 2.0724 Ns/m | 368 nF | −2.5 mN/V | 1.072 |
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Wang, L.; Wu, Z.; Liu, S.; Wang, Q.; Sun, J.; Zhang, Y.; Qin, G.; Lu, D.; Yang, P.; Zhao, L.; et al. Uniform Stress Distribution of Bimorph by Arc Mechanical Stopper for Maximum Piezoelectric Vibration Energy Harvesting. Energies 2022, 15, 3268. https://doi.org/10.3390/en15093268
Wang L, Wu Z, Liu S, Wang Q, Sun J, Zhang Y, Qin G, Lu D, Yang P, Zhao L, et al. Uniform Stress Distribution of Bimorph by Arc Mechanical Stopper for Maximum Piezoelectric Vibration Energy Harvesting. Energies. 2022; 15(9):3268. https://doi.org/10.3390/en15093268
Chicago/Turabian StyleWang, Lu, Zutang Wu, Shuai Liu, Qian Wang, Junjie Sun, Yun Zhang, Guangzhao Qin, Dejiang Lu, Ping Yang, Libo Zhao, and et al. 2022. "Uniform Stress Distribution of Bimorph by Arc Mechanical Stopper for Maximum Piezoelectric Vibration Energy Harvesting" Energies 15, no. 9: 3268. https://doi.org/10.3390/en15093268