Experimental assessment of an active (acoustic) liner prototype in an acoustic flow duct facility

被引：2

作者：

Billon, K. ^{[1
]}

De Bono, E. ^{[1
]}

Perez, M. ^{[1
]}

Salze, E. ^{[2
]}

Matten, G. ^{[3
]}

Gillet, M. ^{[3
]}

Ouisse, M. ^{[3
]}

Volery, M. ^{[4
]}

Lissek, H. ^{[4
]}

Mardjono, J. ^{[5
]}

Collet, M. ^{[1
]}

机构：

[1] Univ Lyon, Ecole Cent Lyon, LTDS, UMR 5513, F-69134 Ecully, France

[2] Univ Lyon, Ecole Cent Lyon, LMFA, UMR 5509, F-69134 Ecully, France

[3] Univ Bourgogne Franche Comte, Dept Appl Mech, FEMTO ST Inst, CNRS UFC ENSMM UTBM, 24 Rue Epitaphe, F-25000 Besancon, France

[4] Ecole Polytech Fed Lausanne, Signal Proc Lab LTS2, Stn 11, CH-1015 Lausanne, Switzerland

[5] Safran Aircraft Engines, F-75015 Paris, France

来源：

HEALTH MONITORING OF STRUCTURAL AND BIOLOGICAL SYSTEMS XV | 2021年 / 11593卷

基金：

欧盟地平线“2020”;

关键词：

Active liner; Electroacoustic absorber; Impedance control; Broadband noise reduction; ELECTROACOUSTIC ABSORBERS; IMPEDANCE CONTROL; MODES;

D O I：

10.1117/12.2583099

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

In this paper, experimental results of broadband noise reduction in an acoustic flow duct are presented. An active liner composed of an array of electroacoustic absorbers is used. The control law is based on the pressure-based, current driven digital architecture for impedance control with a local control strategy. A wind tunnel test rig named Caiman has been used for the experimental validation. The results confirm the adaptability and the stability of the whole system with the local control strategy. The air flow slightly reduces the efficiency while maintaining the adaptability and the stability.

引用

页数：7