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
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.
