RECURSIVE ALGORITHM TO STUDY TRANSMISSION COEFFICIENTS FOR P-SV WAVES PROPAGATING IN 1D INHOMOGENEOUS PHONONIC CRYSTALS

被引：0
|
作者：
Zhao, J. F. [1 ]
Pan, Y. D. [1 ]
Zhong, Z. [1 ]
机构：
[1] Tongji Univ, Inst Acoust, Shanghai 200092, Peoples R China
来源：
ADVANCES IN HETEROGENEOUS MATERIAL MECHANICS 2011 | 2011年
关键词：
phononic crystals; inhomogeneity; functional grade materials;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A recursive algorithm based on stiffness matrix is proposed to study the P-SV wave propagation in a one-dimensional phononic crystal of continuous inhomogeneous media. It could avoid the numerical instability of the transfer matrix method for the high frequency range. A power law profile is proposed for the cell of phononic crystals, where the density and modulus change continuously. It is found that the inhomogeneity could reduce the size of the bandgaps of the transmission or reflection coefficients of the wave.
引用
收藏
页码：519 / 522
页数：4
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