Inverse characterization of the geometrical macroscopic parameters of porous materials

Authors

  • 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

Keywords:

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

Abstract

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.

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Published

2000-09-01

How to Cite

1.
Atalla Y, Panneton R. Inverse characterization of the geometrical macroscopic parameters of porous materials. Canadian Acoustics [Internet]. 2000 Sep. 1 [cited 2021 Jul. 27];28(3):80-1. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1299

Issue

Section

Proceedings of the Acoustics Week in Canada

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