WAVE LOCALIZATION IN RANDOMLY DISORDERED PERIODIC PIEZOELECTRIC RODS WITH INITIAL STRESS

被引：33
|
作者：
Wang, Yize [1 ]
Li, Fengming [1 ,2 ]
Kishimoto, Kikuo [2 ]
Wang, Yuesheng [3 ]
Huang, Wenhu [1 ]
机构：
[1] Harbin Inst Technol, Sch Astronaut, Harbin 150001, Peoples R China
[2] Tokyo Inst Technol, Dept Mech Sci & Engn, Meguro Ku, Tokyo 1528552, Japan
[3] Beijing Jiaotong Univ, Inst Engn Mech, Beijing 100044, Peoples R China
来源：
ACTA MECHANICA SOLIDA SINICA | 2008年 / 21卷 / 06期
基金：
中国博士后科学基金; 日本学术振兴会; 中国国家自然科学基金;
关键词：
piezoelectric phononic crystal; initial stress; random disorder; localization factor; localization length;
D O I：
10.1007/s10338-008-0863-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The elastic wave localization in disordered periodic piezoelectric rods with initial stress is studied using the transfer matrix and Lyapunov exponent method. The electric field is approximated as quasi-static. The effects of the initial stress on the band gap characteristics are investigated. The numerical calculations of localization factors and localization lengths are performed. It can be observed from the results that the band structures can be tuned by exerting the suitable initial stress. For different values of the piezoelectric rod length and the elastic constant, the band structures and the localization phenomena are very different. Larger disorder degree can lead to more obvious localization phenomenon.
引用
收藏
页码：529 / 535
页数：7
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