压电
材料科学
多物理
黄铜
压电系数
能量收集
电压
振动
悬臂梁
功率密度
复合材料
基质(水族馆)
声学
材料性能
有限元法
功率(物理)
结构工程
电气工程
工程类
冶金
物理
海洋学
量子力学
铜
地质学
作者
Ao Gao,Meijie Han,Binbin Li
出处
期刊:Journal of physics
[IOP Publishing]
日期:2024-08-01
卷期号:2835 (1): 012014-012014
标识
DOI:10.1088/1742-6596/2835/1/012014
摘要
Abstract In order to maximize the acquisition of vibration energy of a large mechanical shell, the piezoelectric oscillation energy collector model of a twin cantilever beam was built in COMSOL Multiphysics software by finite element analysis based on the piezoelectric effect. The influence of piezoelectric material, substrate material, and size of piezoelectric material in the output features of piezoelectric energy collector is studied. The research shows that the PZT-5 A output features the best maximum output voltage and power up to 5.2 V and 1.1 mW in the 60-80 Hz range with the highest power density. Based on the selection of PZT-5A using brass as the substrate, the output characteristics of the best maximum output power increased by 5% to 1.16 mW. Based on the selection of PZT-5A as the piezoelectric material and brass as the substrate material, the length, width, and height of PZT-5A were simulated. Finally, the length, width, and height of PZT-5A were determined to be (21×6×0.06) mm 3 . In this case, the maximum output voltage and power were 5.93 V and 1.31 mW, respectively, which increased by 14% and 19% compared with the initial structure model.
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