Trapped modes under interaction of elastic and electric fields in a piezoelectric waveguide

被引：0
|
作者：
S. A. Nazarov
K. M. Ruotsalainen
M. Silvol
机构：
[1] St. Petersburg State University,Institute for Problems in Mechanical Engineering
[2] St. Petersburg State Polytechnic University,undefined
[3] Russian Academy of Sciences,undefined
[4] University of Oulu,undefined
来源：
Doklady Physics | 2015年 / 60卷
关键词：
DOKLADY Physic; Trap Wave; Piezoelectric Module; Wave Trapping; Threshold Wave;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A sufficient condition for the existence of a trapped wave in a piezoelectric waveguide with a cavity is obtained by reducing the boundary-value problem to the self-adjoint operator in a specially constructed Hilbert space. It differs substantially from a similar condition for a pure elastic waveguide with a defect and, in particular, does not guarantee trapping of a wave by a crack. The examples of the damaged piezoelectric waveguides supporting trapped waves are given.
引用
收藏
页码：451 / 455
页数：4
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