INFLUENCE OF RANDOM DISORDERS ON GUIDED ELASTIC WAVE LOCALIZATION IN A TWO-DIMENSIONAL SOLID PHONONIC CRYSTAL WITH A LINE DEFECT

被引：0

作者：

Chen, A-Li ^{[1
]}

Wang, Yue-Sheng ^{[1
]}

Zhang, Chuanzeng ^{[2
]}

机构：

[1] Beijing Jiaotong Univ, Inst Engn Mech, Beijing 100044, Peoples R China

[2] Univ Siegen, Dept Civil Engn, D-57068 Siegen, Germany

来源：

PROCEEDINGS OF THE 17TH INTERNATIONAL CONGRESS ON SOUND AND VIBRATION | 2010年

基金：

美国国家科学基金会;

关键词：

CLASSICAL WAVES; ACOUSTIC-WAVES; STATES;

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In this paper combined with the supercell technique, the plane wave expansion method is used to calculate the band structures of the two-dimensional solid-solid phononic crystals with line defects and the random disorders in either radius or location of the scatterers. Phononic systems with plumbum scatterers embedded in an epoxy matrix are calculated in detail. The influences of the random disorder on the band structures and guided waves will be discussed. Both anti-plane and mixed in-plane wave modes will be considered. The displacement distributions are calculated to show the wave localization phenomenon. The analysis of this paper is relevant to the assessment of the influences of manufacture errors on wave behaviors in wave-guiding phononic crystals as well as the possible control of wave propagation by intentionally introducing disorders into the systems.

引用

页数：8

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