Inverse characterization of the geometrical macroscopic parameters of porous materials

Auteurs-es

  • Youssef Atalla GAUS, Mechanical Engineering Department, Université de Sherbrooke, Sherbrooke Que. J1K 2R1, Canada
  • Raymond Panneton GAUS, Mechanical Engineering Department, Université de Sherbrooke, Sherbrooke Que. J1K 2R1, Canada

Mots-clés :

Acoustic impedance, Characterization, Computer simulation, Inverse problems, Macros, Mathematical models, Parameter estimation, Geometrical macroscopic parameters, Inverse characterization

Résumé

The inverse problem of acoustically determining the geometrical macroscopic parameters of an open celled porous specimen is analyzed. The inverse characterization scheme is based on the equivalent fluid model, in which the solid frame is assumed to be rigid. The numerical predictions using the inversely identified parameters are compared to the measured sound absorption coefficient of the specimen for different thicknesses.

Fichiers supplémentaires

Publié-e

2000-09-01

Comment citer

1.
Atalla Y, Panneton R. Inverse characterization of the geometrical macroscopic parameters of porous materials. Canadian Acoustics [Internet]. 1 sept. 2000 [cité 29 avr. 2026];28(3):80-1. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1299

Numéro

Vol. 28 No. 3 (2000)

Rubrique

Actes du congrès de la Semaine canadienne d'acoustique

Licence

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