共振附近具有较大挠度的圆形板压电能量采集器的非线性特性
Nonlinear characteristics of a circular plate piezoelectric harvester with relatively large deflection near resonance.
作者信息
Xue Huan, Hu Hongping
出版信息
IEEE Trans Ultrason Ferroelectr Freq Control. 2008 Sep;55(9):2092-6. doi: 10.1109/TUFFC.901.
PMID:18986906
Abstract
Based on the von Karman thin circular plate theory, we report in this paper the analysis of the nonlinear behavior of a power harvester consisting of a circular piezoelectric plate and an electric resistance. Dependence of the output power of the harvester upon driving frequency for different electric loads and different applied forces is obtained. Numerical results show that the output power exhibits multi-valuedness and a jump phenomenon near resonance.
摘要
基于冯·卡门薄圆板理论，本文报道了对一种由圆形压电板和电阻组成的能量收集器非线性行为的分析。得到了能量收集器输出功率随不同电负载和不同外力作用下驱动频率的变化关系。数值结果表明，输出功率在共振附近呈现多值性和跳跃现象。
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