Numéro
J. Phys. IV France
Volume 02, Numéro C1, Avril 1992
Deuxième Congrès Français d'Acoustique / Second French Conference on Acoustics
Page(s) C1-687 - C1-690
DOI http://dx.doi.org/10.1051/jp4:19921149
Deuxième Congrès Français d'Acoustique / Second French Conference on Acoustics

J. Phys. IV France 02 (1992) C1-687-C1-690

DOI: 10.1051/jp4:19921149

UNE NOUVELLE CLASSIFICATION DES RÉSONANCES ACOUSTIQUES DU CYLINDRE ET DES TUBES ÉLASTIQUES. APPLICATION À LA RÉSOLUTION DU PROBLÈME INVERSE

H. BATARD, G. QUENTIN and M. TALMANT

G.P.S., Université Paris 7, Tour 23, place Jussieu, F-75251 Paris cedex 05, France


Abstract
Despite the complexity of the secular equation for elastic cylindrical targets, an unexpected simple dependance of the resonance frequencies of the target on its acoustical bulk velocities has been shown recently by numerical investigation. The resonance frequencies lie in two classes, each of them governed in the same way by either the longitudinal or the shear velocities. We present here a direct application of this model : the characterization of the target by its bulk sound velocities, predicted within a 5% error.



© EDP Sciences 1992