Geodesic
Wave transmission and reflection from the boundary of phononic crystal – homogeneous medium
Eurasian journal of mathematical and computer applications, Tome 8 (2020) no. 1, pp. 62-75 Cet article a éte moissonné depuis la source Math-Net.Ru

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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, mathematical model.
Mots-clés : wave transmission 
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     title = {Wave transmission and reflection from the boundary of phononic crystal {{\cyrv}{\CYRDJE}{\textquotedblleft}} homogeneous medium},
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Z. B. Saimanova; S. V. Sukhinin; A. K. Zhumadillayeva. Wave transmission and reflection from the boundary of phononic crystal – homogeneous medium. Eurasian journal of mathematical and computer applications, Tome 8 (2020) no. 1, pp. 62-75. http://geodesic.mathdoc.fr/item/EJMCA_2020_8_1_a3/