Focusing and dispersion of a plane wave by transversally isotropic elastic lenses

被引：1
作者：
Gulyaev, VI
Ivanchenko, GM
机构：
[1] Natl Transport Univ, UA-01010 Kiev, Ukraine
[2] Kiev Natl Univ Construct & Architecture, UA-01037 Kiev, Ukraine
来源：
ACOUSTICAL PHYSICS | 2004年 / 50卷 / 02期
关键词：
Longitudinal Wave; Plane Wave; Acoustics; Wave Front; Elastic Medium;
D O I：
10.1134/1.1675867
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Transformation of a plane longitudinal wave front at the surfaces of a transversely isotropic elastic lens is considered. Nonlinear Snell equations are solved using an approach that combines Newton's method and the algorithm of solution continuation with respect to a parameter. The cases of focusing and divergence of rays passing through a convex lens are investigated. Numerical examples are given for different relationships between the parameters of the elastic medium. (C) 2004 MAIK "Nauka/Interperiodica".
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页码：140 / 145
页数：6
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