The paper concerns a comparison between measurements and predictions of the sound absorption coefficient of a fibrous sample in a standing wave tube. A finite difference method has been used to test the predictions. The material parameters used in the finite difference method have been determined using an empirical model.
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References
1.
KangY. J.BoltonJ. S., “Finite element modelling of isotropic elastic porous materials coupled with acoustical finite elements”, J. Acoust. Soc. Am.98, 635–643, (1995).
2.
JohansenT. F.AllardJ. F.BrouardB.“Finite element method for predicting the acoustical properties of porous samples”, Acta Acustica3, 487–491, (1995).
3.
VigranT. E.KeldersL.LauriksW.LeclaireP.JohansenT. F., “Prediction and Measurements of the Influence of Boundary Conditions in a Standing Wave Tube”Acustica83, 419–423, (1997).
4.
VoroninaN.“Acoustics properties of fibrous materials”Applied Acoustics42, 165–174, (1994).
5.
PressW. H.TeukolskyS.A.VetterlingW. T.FlanneryB. P.“Numerical Recipes in C”, Second Edition, Cambridge University Press, (1992).
6.
JinJ.“The finite element method in electromagnetics”, John Wiley & Sons, inc., (1992).
7.
SilvesterP.P.FerrariR.L.“Finite elements for electrical engineers”, Cambridge University Press, Second Edition, (1990).
8.
QuinnD. W.“A finite element method for computing sound propagation in ducts”Mathematics and Computers in Simulation29, 51–64, (1987).
