Yang Zengtao, Yang Jiashi, Hu Yuantai
IEEE Trans Ultrason Ferroelectr Freq Control. 2008 Nov;55(11):2527-31. doi: 10.1109/TUFFC.962.
Weakly nonlinear behavior of electric power transmission through an elastic wall by piezoelectric transducers and acoustic waves near resonance is studied based on the cubic theory of nonlinear electroelasticity. An approximate analytical solution is obtained. Output voltage is calculated and plotted. Basic nonlinear behaviors of the power transmission structure are examined. It is found that near nonlinear resonance the electrical input-output relation loses its linearity, becomes multi-valued, and experiences jumps due to large mechanical deformations. The behavior below and above resonance is qualitatively different and is qualitatively material dependent.
基于非线性电弹性的三次方理论，研究了压电换能器通过弹性壁以及近共振声波进行电力传输的弱非线性行为。得到了一个近似解析解。计算并绘制了输出电压。研究了电力传输结构的基本非线性行为。结果发现，在非线性共振附近，电输入-输出关系失去线性，变为多值，并由于大的机械变形而出现跳跃。共振以下和以上的行为在性质上是不同的，并且在性质上依赖于材料。
