Propagation of thickness-twist waves in a piezoelectric ceramic plate with unattached electrodes

被引：4
|
作者：
Qian, Zheng-Hua [1 ]
Kishimoto, Kikuo [1 ]
Yang, Jiashi [2 ]
机构：
[1] Tokyo Inst Technol, Dept Mech Sci & Engn, Tokyo 1528552, Japan
[2] Univ Nebraska, Dept Engn Mech, Lincoln, NE 68588 USA
来源：
ULTRASONICS | 2009年 / 49卷 / 6-7期
基金：
日本学术振兴会;
关键词：
Thickness-twist wave; Piezoelectric plate; Unattached electrode; Dispersion relation; BECHMANNS NUMBER; VIBRATIONS;
D O I：
10.1016/j.ultras.2009.02.006
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
We analyze the propagation of thickness-twist waves in an unbounded piezoelectric ceramic plate with air gaps between the plate surfaces and two electrodes. These waves are also called anti-plane or shear-horizontal waves with one displacement component only. An exact solution is obtained from the equations of the linear theory of piezoelectricity. Dispersion relations of the waves are obtained and plotted. Results show that the wave frequency or speed is sensitive to the air gap thickness. This effect can be used to manipulate the behavior of the waves and has implications in acoustic wave devices. (C) 2009 Elsevier B. V. All rights reserved.
引用
收藏
页码：501 / 504
页数：4
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