Bending and polarization switching of piezoelectric laminated actuators under electromechanical loading
Bending and polarization switching of piezoelectric laminated actuators under electromechanical loading
复制标题
DOI：
10.1016/j.compstruc.2004.08.025
复制
发表时间：
2005-06
影响因子：
4.7
通讯作者：
F. Narita;Y. Shindo;K. Hayashi
中科院分区：
文献类型：
--
作者：
F. Narita;Y. Shindo;K. Hayashi
本文从理论、数值和实验三个方面研究了三点弯曲下压电层压作动器的静态机电位移和极化开关特性。将层合梁理论扩展到压电/金属/压电作动器，并分析了机电载荷对作动器位移的影响。本文还提出了一种计算极化开关特性的非线性三维有限元程序。采用锆钛酸铅（PZT）压电薄板和金属薄板制成的层压作动器，采用三点弯曲试验验证了数值预测，并将数值结果与实验数据进行了比较。
The static electromechanical displacement and polarization switching properties of piezoelectric laminated actuators under three point bending have been investigated theoretically, numerically and experimentally. A laminated beam theory is expanded to allow for piezoelectric/metal/piezoelectric actuator, and the effects of electromechanical loading on the displacements of the actuators are analyzed. A nonlinear three-dimensional finite element procedure which allows to compute the polarization switching behavior is also proposed. Three point bending tests are used to validate the numerical predictions, using laminated actuators made with thin soft lead zirconate titanate (PZT) piezoelectric layers and a thin metal sheet, and comparison is made between numerical results and experimental data.