WAVE TRANSMISSION AND REFLECTION FROM THE BOUNDARY OF PHONONIC CRYSTAL - HOMOGENEOUS MEDIUM

被引：3

作者：

Saimanova, Z. B. ^{[1
]}

Sukhinin, S., V ^{[2
]}

Zhumadillayeva, A. K. ^{[1
]}

机构：

[1] LN Gumilyov Eurasian Natl Univ, Nur Sultan, Kazakhstan

[2] Lavrentyev Inst Hydrodynam SB RAS, Novosibirsk, Russia

来源：

EURASIAN JOURNAL OF MATHEMATICAL AND COMPUTER APPLICATIONS | 2020年 / 8卷 / 01期

关键词：

boundary of phononic crystal - homogeneous medium; wave transmission; mathematical model;

D O I：

10.32523/2306-6172-2020-8-1-62-75

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

The article suggests a mathematical model describing the steady-state process of normal incidence, transmission and reflection of acoustic waves falling from a half-space filled with a homogeneous medium to the interface of a half-space filled with a layered heterogeneous 2-component one-dimensional-periodic medium, which can be considered a phonon crystal. The influence of geometrical parameters (size of inhomogeneities) and physical parameters of all media (density, speed of sound) on the coefficients of transmission and reflection is studied. For a number of materials the optimal parameter values for certain target functions are found.

引用

页码：62 / 75

页数：14

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