Hostname: page-component-76fb5796d-vfjqv Total loading time: 0 Render date: 2024-04-25T15:05:21.223Z Has data issue: false hasContentIssue false
  • English
  • Français

Active control of fan noise from high-bypass ratio aeroengines: experimental results

Published online by Cambridge University Press:  04 July 2016

L. Enghardt ,
U. Tapken ,
W. Neise ,
P. Schimming ,
R. Maier  and
J. Zillmann
L. Enghardt
Affiliation:
DLR (German Aerospace Research Center), Institute of Propulsion Technology, Department of Turbulence Research, Berlin, Germany
U. Tapken
Affiliation:
DLR (German Aerospace Research Center), Institute of Propulsion Technology, Department of Turbulence Research, Berlin, Germany
W. Neise
Affiliation:
DLR (German Aerospace Research Center), Institute of Propulsion Technology, Department of Turbulence Research, Berlin, Germany
P. Schimming
Affiliation:
DLR, Institute of Propulsion Technology Cologne, Germany
R. Maier
Affiliation:
EADS Corporate Research Center (CRC), Ottobrunn, Germany
J. Zillmann
Affiliation:
EADS Corporate Research Center (CRC), Ottobrunn, Germany
Get access Rights & Permissions [Opens in a new window]

Abstract

Noise reduction in the inlet of stationary gasturbines or aeroengines is usually achieved by passive absorbers (acoustic liners) the efficiency of which is limited due to the confined length. Higher sound level reductions can be obtained — in particular for the tonal components -by using additionally active noise control techniques (ANC): The rotorspeed-coherent tonal components of the primary sound field are superimposed with an anti-phase sound field which is produced by secondary acoustic sources.

Type
Research Article
Information
The Aeronautical Journal , Volume 106 , Issue 1063 , September 2002 , pp. 501 - 506
Copyright
Copyright © Royal Aeronautical Society 2002 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Burdisso, R.A., Fuller, C.R. and Smith, J.P. Experiments on the active control of turbofan inlet noise using compact, lightweight inlet control and error transducers, 1995, CEAS/AIAA paper 95-028, First Joint CEAS/AIAA Aeroacoustic Conference, Munich, Germany.Google Scholar
2. Gerhold, C.H. Active control of fan-generated tone noise, 1995, CEAS/AIAA paper 95-029, First Joint CEAS/AIAA Aeroacoustic Conference, Munich, Germany.Google Scholar
3. Ishii, T., Kobayashi, H. and Oinuma, H. Modal technique for active control of tones radiated from a ducted fan, J Aircr, 1998, 35, (5), pp 754–760.Google Scholar
4. Pla, F.G. and Hu, Z. Active control of a fan noise: feasibility study, NASA Contractor Report 198511, 1996.Google Scholar
5. Sutliff, D.L., Hu, Z., Pla, F.G., and Heidelberg, L.J. Active noise control of low speed fan rotor-stator modes, 1997, CEAS/AIAA paper 97-1641, Third CEAS/AIAA Aeroacoustie Conference, Atlanta, GA.Google Scholar
6. Smith, J.P., and Burdisso, R.A. Experiments on the active control of inlet noise from a turbofan jet engine using multiple circumferential control arrays, 1996, CEAS/AIAA paper 96-1792, Second CEAS/ AIAA Aeroacoustic Conference, State College, PA.Google Scholar
7. Smith, J.P. and Burdisso, R.A. Active control of inlet noise from a turbofan engine using inlet wavenumber sensors, 1999, CEAS/AIAA paper 99-1808, Fifth CEAS/AIAA Aeroacoustic Conference, Seattle, WA.Google Scholar
8. Minter, J.S. and Fleeter, S. Active control of turbomachine discrete frequency noise utilizing oscillating flaps and pistons, AIAA J, 1997, 35, (7).Google Scholar
9. Traub, P., Kennepohl, F. and Heinig, K., Active control of fan noise from high-bypass ratio aeroengines: a numerical study, 2001, Eighth CEAS European Propulsion Forum, Nottingham, 26-28 March 2001.Google Scholar
10. Widrow, B. and Stearns, S.D. Adaptive Signal Processing, 1985, Prentice Hall, Englwood Cliffs.Google Scholar
11. Kuo, S.M. and Morgan, D.R. Active Noise Control Systems, 1996, John Wiley & Sons, New York.Google Scholar
12. Munjal, M.L. Acoustics of Ducts and Mufflers, 1997, John Wiley & Sons, New York.Google Scholar
13. Holste, F. Ermittlung der aerodynamischen Larmquellen und Berech-nung des abgestrahlten Schallfelds mittels der im Nahfeld gemessenen Druckschwankungen am Beispiel eines Triebwerksmodells, Dissertation TU Berlin, Fortschritt Berichte VDI Reihe 7,1995, VDI Verlag, Nr 272.Google Scholar
14. Enghardt, L., Zhang, Y. and Neise, W. Experimental verification of a radial mode analysis technique using wall-flush mounted sensors, 1999, 137th Meeting of the Acoustical Society of America, Berlin, 15-19 March 1999.Google Scholar
15. Tyler, J.M. and Sofrin, T.G. Axial flow compressor noise, SAE Transaction 70, 1962, pp 309–332.Google Scholar