Effect of Liner Characteristics on the Acoustic Performance of Duct Systems

• Autorzy: Othmani C. , Hentati T. , Taktak M. , Elnady T. , Fakhfakh T. , Haddar M.

Identyfikatory

DOI

10.1515/aoa-2015-0014

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

porous material; perforated plate; duct system; scattering matrix; acoustic attenuation

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2015
• Tom: Vol. 40, No. 1
• Strony: 117--127
• Opis fizyczny: Bibliogr. 28 poz., rys., tab., wykr.

Twórcy

autor

Othmani C.

• Mechanics, Modeling and Production Research Laboratory, National School of Engineers of Sfax, University of Sfax, BP. 1173 Sfax 3038, Tunisia

autor

Hentati T.

• Mechanics, Modeling and Production Research Laboratory, National School of Engineers of Sfax, University of Sfax, BP. 1173 Sfax 3038, Tunisia

autor

Taktak M.

• Mechanics, Modeling and Production Research Laboratory, National School of Engineers of Sfax, University of Sfax, BP. 1173 Sfax 3038, Tunisia

autor

Elnady T.

• Group for Advanced Research in Dynamic Systems (ASU-GARDS), Ain Shams University, 1 Elsaryat St., Abbaseya, 11517 Cairo, Egypt

autor

Fakhfakh T.

• Mechanics, Modeling and Production Research Laboratory, National School of Engineers of Sfax, University of Sfax, BP. 1173 Sfax 3038, Tunisia

autor

Haddar M.

• Mechanics, Modeling and Production Research Laboratory, National School of Engineers of Sfax, University of Sfax, BP. 1173 Sfax 3038, Tunisia

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