一维固-固结构圆柱声子晶体中弹性波的传输特性  

Transmission characteristics of elastic wave in 1D solid-solid cylindrical phononic crystal

作　　者：刘启能[1] 

机构地区：[1]重庆工商大学计算机科学与信息工程学院,重庆400067

出　　处：《物理学报》2011年第3期348-353,共6页Acta Physica Sinica

基　　金：重庆市教委科技项目基金(批准号:KJ080720)资助的课题~~

摘　　要：利用一维固-固结构圆柱声子晶体中弹性波横向受限的条件,推导出弹性波在其中各个模式满足的关系式,利用它研究了弹性波各模式的特性.并利用转移矩阵研究了弹性波的传输特性随模式量子数和圆柱半径的变化规律.得出了一些一维固-固结构圆柱声子晶体的新特征,即弹性波的传输特性由模式量子数和圆柱半径决定.Transmission characteristics of elastic wave in solid-solid cylindrical phononic crystal are obtained under condition of restrictied transrerse elastic wave,and the characteristics of mode is studied. Transmission characteristics of elastic wave versus mode quantum number and cylinder radius are calculated by the transfer matrix method. The new characteristics of elastic wave in solid-solid cylindrical phononic crystal are obtained. Transmission characteristics of elastic wave are determined by the mode quantum number and cylinder radius.

关 键 词：圆柱声子晶体 弹性波 受限 模式 

分 类 号：O347.41[理学—固体力学]