3rd French conference on acoustics
J. Phys. IV France 04 (1994) C5-109-C5-112
Effet d'écran dans une salle et méthode de perturbationD.M.L. HABAULT
C.N.R.S., Laboratoire de Mécanique et d'Acoustique, 31 chemin Joseph Aiguier, 13402 Marseille cedex 20, France
The aim of this paper is to investigate the interest of a perturbation method to describe a screen effect in a room. The screen is described as an elastic plate and can vibrate. First , the sound pressure in the room is computed by using a boundary element method. Then, a perturbation method is developed taking advantage of a small parameter related to the ratio of the densities of the fluid and the plate. Numerical simulations are presented to examine the convergence of the method.
© EDP Sciences 1994