Numéro
J. Phys. IV France
Volume 02, Numéro C1, Avril 1992
Deuxième Congrès Français d'Acoustique / Second French Conference on Acoustics
Page(s) C1-713 - C1-716
DOI http://dx.doi.org/10.1051/jp4:19921154
Deuxième Congrès Français d'Acoustique / Second French Conference on Acoustics

J. Phys. IV France 02 (1992) C1-713-C1-716

DOI: 10.1051/jp4:19921154

EFFETS SPATIO-TEMPORELS DE LA RÉFLEXION ET DE LA RÉFRACTION PAR UNE LAME À FACES PARALLÈLES IMMERGÉE

P. CHEVÉE and M. DESCHAMPS

Laboratoire de Mécanique Physique, Université de Bordeaux I, URA C.N.R.S. N° 867, 351 Cours de la Libération, F-33405 Talence cedex, France


Abstract
In the framework of linear acoustics, the diffraction effects of a field issued from a transducer with narrow aperture through an immersed solid plate, are studied. A numerical calculation using spatial Fourier analysis has been performed to obtain its evolution under harmonic, and pulsed excitation. Both isotropic and anisotropic cases are treated, taking into account the viscoelasticity, or not. Theoretical results obtained for particular materials are compared with the experience.



© EDP Sciences 1992