| Numéro |
J. Phys. IV France
Volume 02, Numéro C1, Avril 1992
Deuxième Congrès Français d'Acoustique / Second French Conference on Acoustics
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|---|---|---|
| Page(s) | C1-1091 - C1-1093 | |
| DOI | https://doi.org/10.1051/jp4:19921240 | |
Deuxième Congrès Français d'Acoustique / Second French Conference on Acoustics
J. Phys. IV France 02 (1992) C1-1091-C1-1093
DOI: 10.1051/jp4:19921240
Laboratoire d'Acoustique Ultrasonore et d'Électronique, URA CNRS 1373, Université du Havre, Place Robert Schuman, F-76610 Le Havre, France
© EDP Sciences 1992
J. Phys. IV France 02 (1992) C1-1091-C1-1093
DOI: 10.1051/jp4:19921240
DIFFUSION ACOUSTIQUE PAR UN TUBE FERMÉ PAR DEUX COQUES HÉMISPHÉRIQUES
D. DÉCULTOT, F. LECROQ, G. MAZE and J. RIPOCHELaboratoire d'Acoustique Ultrasonore et d'Électronique, URA CNRS 1373, Université du Havre, Place Robert Schuman, F-76610 Le Havre, France
Abstract
The acoustic scattering from infinite cylinders or spheres has shown the high influence of the
surface wave propagation. We distinguish two types of surface waves: the Rayleigh or
Whispering gallery waves and the Scholte-Stoneley waves. In this paper we present
experimental results obtained from finite cylindrical shells bounded by two hemispherical
endcaps. In our study, the insonification is in a parallel direction with the main axis of
objects. We explain these experimental results by writting the stationary condition in the
meridian plane of these objects, and by computing the phase velocity in the spherical shell
and in the length of cylindrical shell.
© EDP Sciences 1992