Feasibility of in-duct beamforming

13th AIAA/CEAS Aeroacoustics Conference (28th AIAA Aeroacoustics Conference)

Volumn , Issue , 2007, Pages

  Sijtsma, Pieter ^a  

^a NATIONAL AEROSPACE LABORATORY NLR   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

BEAMFORMING METHODS; BEAMFORMING TECHNIQUE; BROADBAND NOISE; BROADBAND NOISE SOURCES; CIRCULAR MICROPHONE ARRAYS; MICROPHONE ARRAYS; SIMULATION STUDIES; STEERING VECTOR;

ACOUSTIC NOISE; BEAMFORMING; DUCTS; MICROPHONES; STATISTICAL TESTS; STATORS;

AEROACOUSTICS;

EID: 84884744005     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (11)

1. Sijtsma, P., and Stoker, R.W., "Determination of Absolute Contributions of Aircraft Noise Components Using Fly-Over Array Measurements", AIAA Paper 2004-2958, May 2004.
2. Abdelhamid, Y.A., Ng, L.L., Hanson, D.B., and Zlavog, G., "Fan Broadband Noise Generation and Propagation", AIAA Paper 2006-215, January 2006.
3. Oerlemans, S., and Sijtsma, P., "Effects of Wind Tunnel Side-Plates on Airframe Noise Measurements with Phased Arrays", AIAA Paper 2000-1938, June 2000.
4. Sijtsma, P., "Using Phased Array Beamforming to Locate Broadband Noise Sources inside a Turbofan Engine", NLR-TP-2006-320, Presented at the AARC Engine Noise Phased Array Workshop, Cambridge, MA, USA, 11-12 May 2006.
5. Lowis, C.R., and Joseph, P., "A Focused Beamformer Technique for Separating Rotor and Stator-based Broadband Sources", AIAA Paper 2006-2710, May 2006.
6. Sijtsma, P., Oerlemans, S., and Holthusen, H.H., "Location of Rotating Sources by Phased Array Measurements", AIAA Paper 2001-2167, May 2001.
7. Oerlemans, S., Sijtsma, P., and Méndez López, B., "Location and Quantification of Noise Sources on a Wind Turbine", Journal of Sound and Vibration, Vol. 299, February 2007, pp. 869-883.
8. Oerlemans, S., "Location and Quantification of Helicopter Noise Sources in a Wind Tunnel", Proceedings of the 32nd European Rotorcraft Forum, Maastricht, The Netherlands, September 2006.
9. Müller D., Schulz H.-J., Zitouni G., and Baumann W., "Europe's Largest Aero Acoustic Test Facility for Aero-Engine Fans-The Development and Operation of the AneCom AeroTest Anechoic Chamber", AIAA Paper 2005-3050, May 2005
10. Rademaker, E.R., Sijtsma, P., and Tester, B.J., "Mode Detection with an Optimised Array in a Model Turbofan Engine Intake at Varying Shaft Speeds", AIAA Paper 2001-2181, May 2001.
11. Rienstra, S.W., and Tester, B.J., "An Analytic Green's Function for a Lined Circular Duct Containing Uniform Mean Flow", AIAA Paper 2005-3020, May 2005.