Effect of Liner Characteristics on the Acoustic Performance of Duct Systems
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 axisymm...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Institute of Fundamental Technological Research Polish Academy of Sciences
2015-01-01
|
| Series: | Archives of Acoustics |
| Subjects: | |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/326 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850104453983633408 |
|---|---|
| author | Chokri OTHMANI Taissir HENTATI Mohamed TAKTAK Tamer ELNADY Tahar FAKHFAKH Mohamed HADDAR |
| author_facet | Chokri OTHMANI Taissir HENTATI Mohamed TAKTAK Tamer ELNADY Tahar FAKHFAKH Mohamed HADDAR |
| author_sort | Chokri OTHMANI |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-59df8d3f83f54a2e8923c36207caef08 |
| institution | DOAJ |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-59df8d3f83f54a2e8923c36207caef082025-08-20T02:39:19ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2015-01-0140110.1515/aoa-2015-0014Effect of Liner Characteristics on the Acoustic Performance of Duct SystemsChokri OTHMANITaissir HENTATIMohamed TAKTAK0Tamer ELNADYTahar FAKHFAKHMohamed HADDARMechanics, Modelling and Production Laboratory National School of Engineers of Sfax, University of Sfax, Sfax, TUNISIAPorous 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.https://acoustics.ippt.pan.pl/index.php/aa/article/view/326porous materialperforated plateducts systemscattering matrixacoustic attenuation. |
| spellingShingle | Chokri OTHMANI Taissir HENTATI Mohamed TAKTAK Tamer ELNADY Tahar FAKHFAKH Mohamed HADDAR Effect of Liner Characteristics on the Acoustic Performance of Duct Systems Archives of Acoustics porous material perforated plate ducts system scattering matrix acoustic attenuation. |
| title | Effect of Liner Characteristics on the Acoustic Performance of Duct Systems |
| title_full | Effect of Liner Characteristics on the Acoustic Performance of Duct Systems |
| title_fullStr | Effect of Liner Characteristics on the Acoustic Performance of Duct Systems |
| title_full_unstemmed | Effect of Liner Characteristics on the Acoustic Performance of Duct Systems |
| title_short | Effect of Liner Characteristics on the Acoustic Performance of Duct Systems |
| title_sort | effect of liner characteristics on the acoustic performance of duct systems |
| topic | porous material perforated plate ducts system scattering matrix acoustic attenuation. |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/326 |
| work_keys_str_mv | AT chokriothmani effectoflinercharacteristicsontheacousticperformanceofductsystems AT taissirhentati effectoflinercharacteristicsontheacousticperformanceofductsystems AT mohamedtaktak effectoflinercharacteristicsontheacousticperformanceofductsystems AT tamerelnady effectoflinercharacteristicsontheacousticperformanceofductsystems AT taharfakhfakh effectoflinercharacteristicsontheacousticperformanceofductsystems AT mohamedhaddar effectoflinercharacteristicsontheacousticperformanceofductsystems |