Threedimensional problems of acoustic waves scattering by infinite flexible plates covering a stratified liquid layer which lies on a homogeneous halfspace are considered. An optical theorem for the problems is derived. The identifies of the theorem differ from that being previously obtained for homogeneous acoustic media in terms corresponding to normal waves of a waveguide formed by the layer. At large distances the scattered field forms a divergent spherical wave in the halfspace and a set of circular waves in the waveguide channel. The identities are obtained for two cases of excitation: the excitation by a plane acoustic wave incident from the halfspace and the excitation by a plane normal wave propagating along the plate. The derived identities can be useful from independent confirmation of numerical calculation data.
Original language  Russian 

Pages (fromto)  1318 

Journal  АКУСТИЧЕСКИЙ ЖУРНАЛ 

Issue number  1 

Publication status  Published  1993 

Externally published  Yes 

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@article{e182665884e84de099f376b3c83012e8,
title = "OPTICAL THEOREM FOR A SYSTEM PLATESTRATIFIED LIQUID",
abstract = "Threedimensional problems of acoustic waves scattering by infinite flexible plates covering a stratified liquid layer which lies on a homogeneous halfspace are considered. An optical theorem for the problems is derived. The identifies of the theorem differ from that being previously obtained for homogeneous acoustic media in terms corresponding to normal waves of a waveguide formed by the layer. At large distances the scattered field forms a divergent spherical wave in the halfspace and a set of circular waves in the waveguide channel. The identities are obtained for two cases of excitation: the excitation by a plane acoustic wave incident from the halfspace and the excitation by a plane normal wave propagating along the plate. The derived identities can be useful from independent confirmation of numerical calculation data.",
author = "I.V. Andronov",
year = "1993",
language = "русский",
pages = "1318",
journal = "АКУСТИЧЕСКИЙ ЖУРНАЛ",
issn = "03207919",
publisher = "Издательство {"}Наука{"}",
number = "1",
}
TY  JOUR
T1  OPTICAL THEOREM FOR A SYSTEM PLATESTRATIFIED LIQUID
AU  Andronov, I.V.
PY  1993
Y1  1993
N2  Threedimensional problems of acoustic waves scattering by infinite flexible plates covering a stratified liquid layer which lies on a homogeneous halfspace are considered. An optical theorem for the problems is derived. The identifies of the theorem differ from that being previously obtained for homogeneous acoustic media in terms corresponding to normal waves of a waveguide formed by the layer. At large distances the scattered field forms a divergent spherical wave in the halfspace and a set of circular waves in the waveguide channel. The identities are obtained for two cases of excitation: the excitation by a plane acoustic wave incident from the halfspace and the excitation by a plane normal wave propagating along the plate. The derived identities can be useful from independent confirmation of numerical calculation data.
AB  Threedimensional problems of acoustic waves scattering by infinite flexible plates covering a stratified liquid layer which lies on a homogeneous halfspace are considered. An optical theorem for the problems is derived. The identifies of the theorem differ from that being previously obtained for homogeneous acoustic media in terms corresponding to normal waves of a waveguide formed by the layer. At large distances the scattered field forms a divergent spherical wave in the halfspace and a set of circular waves in the waveguide channel. The identities are obtained for two cases of excitation: the excitation by a plane acoustic wave incident from the halfspace and the excitation by a plane normal wave propagating along the plate. The derived identities can be useful from independent confirmation of numerical calculation data.
M3  статья
SP  13
EP  18
JO  АКУСТИЧЕСКИЙ ЖУРНАЛ
JF  АКУСТИЧЕСКИЙ ЖУРНАЛ
SN  03207919
IS  1
ER 