Diffraction of a Plane Sound Wave on a Thermoelastic Sphere with a Discretely Inhomogeneous Coating
N. V. Larin
Tula State University, Tula, 300012, Russia
Keywords: дифракция звука, термоупругий шар, неоднородный термоупругий слой, diffraction of sound, thermoelastic sphere, inhomogeneous thermoelastic layer
Abstract
An analytical solution of the problem of the diffraction of a plane monochromatic sound wave on a sphere with a coating of several spherical layers is obtained using the equations of a linear coupled dynamic problem of the thermoelasticity of a homogeneous isotropic body. The results of calculations of the frequency and angular characteristics of the amplitude of a scattered acoustic field for a sphere with a multilayer coated and a coating with heterogeneity continuous across the thickness are given. It is shown that a continuously inhomogeneous thermoelastic coating can be modeled by a system of homogeneous thermoelastic layers. The effect of the thermoelasticity of the sphere materials and its discrete inhomogeneous coating on the scattering of sound was investigated.
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