Acoustic performance evaluation for ducts containing porous materials

被引：10

作者：

Kani, Marva ^{[1
,2
]}

Abosrea, Ahmad ^{[3
]}

Makni, Amine ^{[1
,2
]}

Taktak, Mohamed ^{[1
,2
]}

Chaabane, Mabrouk ^{[1
,2
]}

Elnady, Tamer ^{[3
]}

Haddar, Mohamed ^{[1
]}

机构：

[1] Univ Sfax, Natl Sch Engineers Sfax, Lab Mech Modeling & Prod LA2MP, BP 1173, Sfax 3038, Tunisia

[2] Fac Sci Sfax, BP 1171, Sfax 3000, Tunisia

[3] ASU, GARDS, 1 Elsaryat St, Cairo 11517, Egypt

来源：

APPLIED ACOUSTICS | 2019年 / 147卷

关键词：

Duct; Porous material; Transfer matrix; Scattering matrix; Transmission loss; TRANSMISSION LOSS; MATRIX;

D O I：

10.1016/j.apacoust.2018.08.002

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The study of the sound propagation in duct systems containing a porous material is important because they are used in many industrial applications. The acoustic behavior of this kind of ducts which are supposed two-port systems can be modeled by many matrices like the reflection, transmission, mobility, transfer and scattering matrices. In this work, Theoretical and experimental methods are used to evaluate the acoustic performance of duct systems containing one or two porous materials. To reach this goal, the Transmission coefficient was calculated by determining transfer and scattering matrices. The comparison between theoretical and experimental results shows a good agreement between results with some differences due to the no respect of the hypothesis of the rigidity of the duct. A parametric study allowed estimating the more influent parameters on the acoustic behavior of duct systems containing porous materials. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：15 / 22

页数：8

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