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

K. Billon; E. De Bono; M. Perez; E. Salze; G. Matten; M. Gillet; M. Ouisse; M. Volery; H. Lissek; J. Mardjono; M. Collet

doi:10.1117/12.2583099

22 March 2021 Experimental assessment of an active (acoustic) liner prototype in an acoustic flow duct facility

K. Billon, E. De Bono, M. Perez, E. Salze, G. Matten, M. Gillet, M. Ouisse, M. Volery, H. Lissek, J. Mardjono, M. Collet

Author Affiliations +

Proceedings Volume 11593, Health Monitoring of Structural and Biological Systems XV; 115932L (2021) https://doi.org/10.1117/12.2583099
Event: SPIE Smart Structures + Nondestructive Evaluation, 2021, Online Only

Abstract

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 Caïman 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.

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Citation Download Citation

K. Billon, E. De Bono, M. Perez, E. Salze, G. Matten, M. Gillet, M. Ouisse, M. Volery, H. Lissek, J. Mardjono, and M. Collet "Experimental assessment of an active (acoustic) liner prototype in an acoustic flow duct facility", Proc. SPIE 11593, Health Monitoring of Structural and Biological Systems XV, 115932L (22 March 2021); https://doi.org/10.1117/12.2583099

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