Acoustic scattering of rotorcraft noise

Annual Forum Proceedings - AHS International

Volumn 3, Issue , 2008, Pages 2242-2257

  Lee, Seongkyu ^a   Erwin, James P ^a   Brentner, Kenneth S ^a  

^a The Pennsylvania State University   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACOUSTIC FIELD MEASUREMENT; ACOUSTICS; FUSELAGES; HELICOPTER ROTORS; HELICOPTERS; MILITARY HELICOPTERS; NASA; PRESSURE GRADIENT; ROTORS; SCATTERING; SOLAR CONCENTRATORS;

A-PLANE; ACOUSTIC PRESSURES; ACOUSTIC SCATTERING; AIRFRAME COMPONENTS; FAST SCATTERING CODE; FOCAL POINTS; IN-PLANE; NEW APPROACHES; NOISE FIELDS; NOISE PREDICTIONS; SPECIFIC FREQUENCIES; TILT ROTORS;

ACOUSTIC WAVE SCATTERING;

EID: 50049102340     PISSN: 15522938     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (16)

1. th Aeroacoustics Conference, Tallahassee, FL, Oct 1990.
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3. th AIAA/CEAS Aeroacoustics Conference, Rome.Italy, May 2007.
4. Brès, G. A., "Modeling the noise of arbitrary maneuvering rotorcraft: Analysis and implementation of the PSU-WOPWOP noise prediction code," M.S. thesis, Department of Aerospace Engineering, The Pennsylvania State University, June 2002.
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6. Brentner, K. S., Perez, G., Brès, G. A., and Jones, H. E., "Maneuvering Rotorcraft Noise Prediction," Journal of Sound and Vibration, Vol. 39 (3-5), August 2003, pp. 719-738.
7. Hennés, C., Lopes, L., and Shirey, J., PSU-WOPWOP User's Manual, 20 September 2005, The Pennsylvania State University, University Park, PA, Sep. 2005.
8. Dunn, M. H., and Tinetti, A. F., "Aeroacoustic Scattering Via The Equivalent Source Method," AIAA Paper 2004-2937, AIAA 10th AIAA/CEAS Aeroacoustics Conference, Manchester, United Kingdom, May 2004.
9. th AIAA/CEAS Aeroacoustics Conference, Monterey,CA, May 2005.
10. th AIAA/CEAS Aeroacoustics Conference, Rome, Italy, May 2007.
11. Farassat, F., and Succi, G. P., "The Prediction of Helicopter Discrete Frequency Noise," Vertica, Vol. 7 (4), 1983, pp. 309-320.
12. Brentner, K. S., "Prediction of Helicopter Discrete Frequency Rotor Noise - A Computer Program Incorporating Realistic Blade Motions and Advanced Acoustic Formulation," NASA TM 87721, 1986.
13. Farassat, F., "Derivation of Formulations 1 and IA of Farassat," NASA TM 2007-214853, 2007.
14. Leishman, J. G., Principles of Helicopter Aerodynamics, Cambridge University Press, New York, 2nd edition, 2006.
15. Crighton, D. G., Dowling, A. P., Ffowcs Williams, J. E., Heckl, M., and Leppington, F. G., Modern Methods in Analytical Acoustics: Lecture Notes, Springer-Verlag, London, 1992.
16. Yeo, H., and Johnson, W., "Performance and Design Investigation of Heavy Lift Tiltrotor with Aerodynamic Interference Effets," 63th AHS Forum of the American Helicopter Society, Virginia Beach, VA, May 1-3 2007.