Broadband locally resonant beams containing multiple periodic arrays of attached resonators

被引：249

作者：

Xiao, Yong ^{[1
,2
,3
]}

Wen, Jihong ^{[1
,2
,3
]}

Wen, Xisen ^{[1
,2
,3
]}

机构：

[1] Natl Univ Def Technol, Inst Mechatron Engn, Changsha 410073, Hunan, Peoples R China

[2] Natl Univ Def Technol, MOE Key Lab Photon & Phonon Crystals, Changsha 410073, Hunan, Peoples R China

[3] Natl Univ Def Technol, Lab Sci & Technol Integrated Logist Support, Changsha 410073, Hunan, Peoples R China

来源：

PHYSICS LETTERS A | 2012年 / 376卷 / 16期

基金：

中国国家自然科学基金;

关键词：

Periodic beams; Plane-wave-expansion method; Complex band structure; Locally resonant; WAVE-PROPAGATION; PHONONIC CRYSTALS; MODES;

D O I：

10.1016/j.physleta.2012.02.059

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The plane wave expansion method is extended to study the flexural wave propagation in locally resonant beams with multiple periodic arrays of attached spring-mass resonators. Complex Bloch wave vectors are calculated to quantify the wave attenuation performance of band gaps. It is shown that a locally resonant beam with multiple arrays of damped resonators can achieve much broader band gaps, at frequencies both below and around the Bragg condition, than a locally resonant beam with only a single array of resonators, although the two systems have the same total resonator masses. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：1384 / 1390

页数：7

共 28 条

[1] Evidence of Fano-like interference phenomena in locally resonant materials -: art. no. 225502 [J].