Numéro
J. Phys. IV France
Volume 02, Numéro C1, Avril 1992
Deuxième Congrès Français d'Acoustique / Second French Conference on Acoustics
Page(s) C1-503 - C1-506
DOI http://dx.doi.org/10.1051/jp4:19921108
Deuxième Congrès Français d'Acoustique / Second French Conference on Acoustics

J. Phys. IV France 02 (1992) C1-503-C1-506

DOI: 10.1051/jp4:19921108

PRÉDICTION DU RAYONNEMENT ACOUSTIQUE D'UNE PLAQUE TROUÉE

O. BESLIN1, P. MILLOT1 and J.L. GUYADER2

1  Laboratoire des Sciences de l'Habitat, Ecole Nationale des Travaux Publics de l'Etat, F-69518 Vaulx-en-Velin, France
2  Laboratoire Acoustique et Vibrations, Institut National des Sciences Appliquées, F-69621 Villeurbanne, France


Abstract
Sound radiation from plates with holes is of practical interest in the design of machinery hoods but also in that of double walls with one perforated panel (ref.{l}). A theoretical model is established to calculate the pressure radiated in two rectangular rooms separated by a perforated plate. An integral formulation is used to resolve the acoustical field and a variational method is used to resolve the vibrational field. First numerical results are shown in a last part.



© EDP Sciences 1992