- Tytuł:
- Effect of Liner Characteristics on the Acoustic Performance of Duct Systems
- Autorzy:
-
Othmani, C.
Hentati, T.
Taktak, M.
Elnady, T.
Fakhfakh, T.
Haddar, M. - Powiązania:
- https://bibliotekanauki.pl/articles/176887.pdf
- Data publikacji:
- 2015
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
porous material
perforated plate
duct system
scattering matrix
acoustic attenuation - Opis:
- Porous materials are used in many vibro-acoustic applications. Different models describe their performance according to material’s intrinsic characteristics. In this paper, an evaluation of the effect of the porous and geometrical parameters of a liner on the acoustic power attenuation of an axisymmetric lined duct was performed using multimodal scattering matrix. The studied liner is composed by a porous material covered by a perforated plate. Empirical and phenomenal models are used to calculate the acoustic impedance of the studied liner. The later is used as an input to evaluate the duct attenuation. By varying the values of each parameter, its influence is observed, discussed and deduced.
- Źródło:
-
Archives of Acoustics; 2015, 40, 1; 117-127
0137-5075 - Pojawia się w:
- Archives of Acoustics
- Dostawca treści:
- Biblioteka Nauki
Artykuł