Wave Propagation in a Fluid Filled Rubber Tube: Theoretical and Experimental Results for Korteweg's Wave - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Acta Acustica united with Acustica Année : 2007

Wave Propagation in a Fluid Filled Rubber Tube: Theoretical and Experimental Results for Korteweg's Wave

Résumé

In this paper, the interaction between the wall vibrations of a stretched elastic cylindrical membrane and the inner acoustic field is considered under plane wave approximation. Three waves exist at low frequencies for this coupled system. The first of these, called Korteweg's wave, propagates mainly within the fluid and corresponds to the acoustic plane wave which is closely coupled to the wall vibrations. The two other waves mostly propagate within the structure and correspond to coupled longitudinal/flexural motions: one corresponds to predominant longitudinal motions in the membrane and the other exists only when tension is applied to the embrane and is similar to a string bending wave. A model for the dispersion curves is presented and is experimentally validated. In particular, the model and experiments reveal that three frequency ranges exist for which the propagation of the Korteweg's wave is subsonic, evanescent and supersonic. The experimental validation is achieved using the acoustic impedance measurements for a stretched ubber membrane. Assuming that the vibratory and acoustic fields are dominated by one wave, the latter are escribed by using only one dispersive wave, in this case, of equivalent wave speed. The input acoustic impedance curve can be fitted using this expression which only equires one equivalent wave.
Fichier principal
Vignette du fichier
2007_Gautier_al_Acustica_WavePropagationInAFluidFilledRubberTube.pdf (611.07 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00474657 , version 1 (21-04-2010)

Identifiants

  • HAL Id : hal-00474657 , version 1

Citer

François Gautier, Joël Gilbert, Jean-Pierre Dalmont, Ruben Pico. Wave Propagation in a Fluid Filled Rubber Tube: Theoretical and Experimental Results for Korteweg's Wave. Acta Acustica united with Acustica, 2007, 93 (3), pp.333-344. ⟨hal-00474657⟩
247 Consultations
2050 Téléchargements

Partager

Gmail Facebook X LinkedIn More