The directional propagation characteristics of elastic wave in two-dimensional thin plate phononic crystals

被引：21
|
作者：
Wen, Jihong [1 ]
Yu, Dianlong
Wang, Gang
Zhao, Honggang
Liu, Yaozong
Wen, Xisen
机构：
[1] Natl Univ Def Technol, Inst Mechatron Engn, Changsha 410073, Peoples R China
[2] Natl Univ Def Technol, PBG Res Ctr, Changsha 410073, Peoples R China
来源：
PHYSICS LETTERS A | 2007年 / 364卷 / 3-4期
关键词：
phononic crystals; lumped-mass method; phase constant surface; thin plate;
D O I：
10.1016/j.physleta.2006.11.079
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The directional propagation characteristics of elastic wave during pass bands in two-dimensional thin plate phononic crystals are analyzed by using the lumped-mass method to yield the phase constant surface. The directions and regions of wave propagation in phononic crystals for certain frequencies during pass bands are predicted with the iso-frequency contour lines of the phase constant surface, which are then validated with the harmonic responses of a finite two-dimensional thin plate phononic crystals with 16 x 16 unit cells. These results are useful for controlling the wave propagation in the pass bands of phononic crystals. (C) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：323 / 328
页数：6
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