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JOURNALS // Problemy Fiziki, Matematiki i Tekhniki (Problems of Physics, Mathematics and Technics) // Archive

PFMT, 2013 Issue 1(14), Pages 48–54 (Mi pfmt221)

PHYSICS

Calculation of the attenuation coefficient of the sound field of a spherical radiator by penetrable spherical shell

G. Ch. Shushkevich, N. N. Kiseleva

Y. Kupala Grodno State University, Grodno

Abstract: The analytical solution of the boundary problem which describes the process of penetration of the sound field of a spherical radiator located inside a thin unclosed spherical shell, through the permeable spherical shell is constructed. The influence of some parameters of the problem on the value of the attenuation coefficient (screening) of a sound field inside the spherical shell is numerically investigated.

Keywords: dual series equations for Legendre polynomials, infinite system of linear algebraic equations of the second kind with a completely continuous operator, attenuation coefficient of a sound field.

UDC: 534.26

Received: 24.11.2012



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