Mode detection in turbofan inlets from near field sensor arrays

Journal of the Acoustical Society of America

Volumn 121, Issue 2, 2007, Pages 796-807

  Castres, Fabrice O ^a   Joseph, Phillip F ^a  

^a UNIVERSITY OF SOUTHAMPTON   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

APPROXIMATION THEORY; DUCTED FAN ENGINES; EIGENVALUES AND EIGENFUNCTIONS; INTAKE SYSTEMS; NOISE GENERATORS; PRESSURE MEASUREMENT;

CUTOFF FREQUENCY; DIRECTIVITY MATRIX; KIRCHHOFF APPROXIMATION; SENSOR ARRAYS;

TURBOFAN ENGINES;

ACCURACY; ACOUSTICS; AMPLITUDE MODULATION; ARTICLE; FLOW KINETICS; PRIORITY JOURNAL; SENSOR; SOUND TRANSMISSION; TECHNIQUE;

EID: 33846704679     PISSN: 00014966     EISSN: None     Source Type: Journal    
DOI: 10.1121/1.2427124     Document Type: Article

References (20)

1. R. Thomas, F. Farassat, L. Clark, C. Gerhold, J. Kelly, and L. Becker, " A mode detection using the azimuthal directivity of a turbofan model., " in Fifth AIAA/CEAS Aeroacoutics Conference, Bellevue, WA (1999).
2. F. Farassat, D. Nark, and H. Russel, " The detection of radiated modes from ducted fan engine., " in Seventh AIAA/CEAS Aeroacoustics Conference, Maastricht, The Netherlands (2001).
3. J. Lan, J. Premo, and D. L. Sutliff, " Inlet mode measurements with an inlow control device microphone array., " in AIAA/CEAS Aeroacoustics Conference (Breckenridge, CO, 2002).
4. G. Golub and C. Van Loan, Matrix Computations (North Oxford Academic, Oxford, 1983).
5. F. Castres, P. Joseph, and R. Astley, " Mode detection in turbofan inlets from acoustic pressure measurements in the radiated field., " in Tenth AIAA/CEAS Aeroacoustics Conference, Manchester, UK (2003).
6. F. Castres, " Mode detection from turbofan inlets., " Ph.D. thesis, University of Southampton (2006).
7. B. Fuller, " The age of the dome., " BUILD INTERNATIONAL 2, 7-15 (July/August 1969).
8. H. Kenner, Geodesic Math and How to Use It (University of California Press, Berkeley, 1976).
9. M. Tyler and T. Sofrin, " Axial flow compressor noise studies., " Soc. Automot. Eng. Trans. 70, 309-332 (1962).
10. F. Bromwell, " Extended asymptotic eigenvalue distributions for bounded domains in n space., " J. Math. Mech. 6, 119-166 (1957).
11. G. Borgiotti, " The power radiated by a vibrating body in an acoustic fluid and its determination from boundary measurements., " J. Acoust. Soc. Am. 88, 1884-1893 (1990).
12. G. Borgiotti and E. Rosen, " The determination of the far field of an acoustic radiator from sparse measurement samples in the near field., " J. Acoust. Soc. Am. 92, 807-818 (1992).
13. G. Borgiotti and K. Jones, " The determination of the acoustic far field of a radiating body in an acoustic fluid from boundary measurements., " J. Acoust. Soc. Am. 93, 2788-2797 (1993).
14. M. Currey and K. Cunefare, " The radiation modes of baffled finite plates., " J. Acoust. Soc. Am. 98, 1570-1580 (1995).
15. P. Nelson and S. Yoon, " Estimation of acoustic source strength by inverse methods: Part i, conditioning of the inverse problem., " J. Sound Vib. 233, 643-668 (2000).
16. E. Williams, B. Houston, and P. Herdic, " Fast Fourier transform and singular value decomposition formulations for patch near field acoustical holography., " J. Acoust. Soc. Am. 114, 1322-1333 (2003).
17. C. Morfey, " A note on the radiation efficiency of acoustic duct modes., " J. Sound Vib. 9, 367-372 (1969).
18. C. Hansen, " Perturbations bounds for discrete tikhonov regularization., " Inverse Probl. 5, L42-L44 (1989).
19. C. Hansen, " Regularization, gsvd and truncated gsvd., " BIT 29, 491-504 (1989).
20. C. Hansen, " Rank-deficient and discrete ill-posed problems., " SIAM Monographs on Mathematical Modeling and Computation, 243 (1998), tY-CHAP Compilation and indexing terms, Copyright 2005 Elsevier Engineering Information, Inc. U1-98024057146.