Noise reduction in a flow duct by active control of wall impedance

8th AIAA/CEAS Aeroacoustics Conference and Exhibit

Volumn , Issue , 2002, Pages

  Galland, Marie Annick ^a   Sellen, Nadine ^a   Hilbrunner, Olivier ^a  

^a ECOLE CENTRALE DE LYON   (France)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC LINERS; ACTIVE CONTROL; DESIGN PROCEDURE; DESIGN PROCESS; FINAL OBJECTIVE; LABORATORY FACILITIES; WALL IMPEDANCE; WIDE FREQUENCY RANGE;

ACOUSTIC IMPEDANCE; ACOUSTIC NOISE; AEROACOUSTICS; DUCTS;

NOISE ABATEMENT;

EID: 84896809978     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (7)

1. Aeroacoustics of flight vehicles. Theory and Practice, vol. 2: Noise Control Edited by H. H. Hubbard 1995, A.S.A.
2. Elliott, S.J., Sutton, T.J., Rafaely, B. & Johnson, M., 1995, Design of feedback controllers using a feed forward approach, Active 95.
3. Furstoss, M., Thenail, D., Galland M.A., 1997, Surface Impedance control for sound absorption: direct and hybrid passive/active strategies, J. of Sound and Vibration, 203, 219-236.
4. Galland, M.A., Souchotte P., Ladner P. & Mazoyer T., 2001, Experimental Investigation of Noise Reduction in a Flow Duct through Hybrid Passive/Active Liner, 7th AIAA/CEAS Aeroacoustics Conference, Maastricht, The Netherlands, 28-30 May 2001, 2001-2221.
5. Lacour, O., Thenail, D. & Galland, M.A., 2000, Preliminary experiments on noise reduction in cavities using active impedance changes, J. of Sound and Vibrations, 230 (1), 69-100
6. Roure, A., 1977, Propagation du son dans des conduits à section continuement variable. Application à la détermination des fréquences propres de certains volumes complexes, Euromech 94.
7. Sellen, N., Galland, M.A., Hilbrunner O., 2002, Identification of the characteristic parameters of porous media using active control, 8th AIAA/CEAS Aeroacoustics Conference, Breckenridge, Colorado, 17-19 June 2002, 2002-2504.