Experimental assessment of an active (acoustic) liner prototype in an acoustic flow duct facility
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| Titre | Experimental assessment of an active (acoustic) liner prototype in an acoustic flow duct facility |
| Type de publication | Conference Paper |
| Year of Publication | 2021 |
| Auteurs | Billon K., De Bono E., Perez M., Salze E., Matten G., Gillet M., Ouisse M., Volery M., Lissek H., Mardjono J., Collet M. |
| Editor | Fromme P, Su Z |
| Conference Name | HEALTH MONITORING OF STRUCTURAL AND BIOLOGICAL SYSTEMS XV |
| Publisher | SPIE |
| Conference Location | 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA |
| ISBN Number | 978-1-5106-4016-0 |
| Mots-clés | Active liner, Broadband noise reduction, Electroacoustic absorber, Impedance control |
| Résumé | 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. |
| DOI | 10.1117/12.2583099 |