Title of article
WAVE TRANSMISSION and REFLECTION FROM THE BOUNDARY OF PHONONIC CRYSTAL – HOMOGENEOUS MEDIUM
Author/Authors
Saimanova, Z.B. L.N.Gumilyov Eurasian National University, Nur-Sultan, Republic of Kazakhstan , Sukhinin, S.V. Lavrentyev Institute for Hydrodynamics SB RAS, Novosibirsk, Russia , Zhumadillayeva, A.K. L.N.Gumilyov Eurasian National University, Nur-Sultan, Republic of Kazakhstan
Pages
14
From page
62
To page
75
Abstract
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.
Keywords
boundary of phononic crystal – homogeneous medium , wave transmission , math - ematical model
Journal title
Eurasian Journal of Mathematical and Computer Applications
Serial Year
2020
Record number
2602428
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