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Overview of Noise Reduction Technology in the NASA Short Haul (Civil Tiltrotor) Program
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Abstract
Noise is a barrier issue for penetration of civil markets by future tiltrotor aircraft. To address this issue, elements of the NASA Short Haul (Civil Tiltrotor) [SH(CT)] program are working in three different areas: noise abatement, noise reduction, and noise prediction. Noise abatement refers to modification of flight procedures to achieve quieter approaches. Noise reduction refers to innovative new rotor designs that would reduce the noise produced by a tiltrotor. Noise prediction activities are developing the tools to guide the design of future quiet tiltrotors. This paper presents an overview of SH(CT) activities in all three areas, including sample results.
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Citation
Marcolini, M., Burley, C., Conner, D., and Acree, C., "Overview of Noise Reduction Technology in the NASA Short Haul (Civil Tiltrotor) Program," SAE Technical Paper 962273, 1996, https://doi.org/10.4271/962273.Also In
References
- Huston, R. J. Golub, R. A. Yu, J. C. “Noise Considerations for Tiltrotor,” AIAA Paper No. 89-2359 1989
- “Civil Tiltrotor Development Advisory Committee Report to Congress,” 1 Final Report December 1995
- George, A. R. Smith, C. A. Maisel, M. D. Brieger, J. T. “Tilt Rotor Aircraft Aeroacoustics,” American Helicopter Society 45th Annual Forum Boston, MA May 22-24 1989
- Lee, A. Mosher, M. “An Acoustical Study of the XV-15 Tilt Rotor Research Aircraft,” AIAA Paper No. 79-0612 1979
- Brieger, J. T. Maisel, M. D. Gerdes, R. “External Noise Evaluation of the XV-15 Tilt Rotor Aircraft,” AHS National Technical Specialists' Meeting on Aerodynamics and Aeroacoustics Arlington, TX February 25-27 1987
- Edwards, B. D. “XV-15 Tiltrotor Aircraft Noise Characteristics,” American Helicopter Society 46th Annual Forum Washington, D. C May 21-23 1990
- Marcolini, M. A. Conner, D. A. Brieger, J. T. Becker, L. E. Smith, C. D. “Noise Characteristics of a Model Tiltrotor,” American Helicopter Society 51st Annual Forum Fort Worth, TX May 9-11 1995
- “Tilt Rotor Research Aircraft Familiarization Document,” NASA TMX-62 407 Jan. 1975
- Harse, J. “Aircraft Design,” Vertiflite 42 3 May June 1996 44 52
- Phelps, K. “Test & Evaluation,” Vertiflite 42 3 May June 1996 34 43
- Cross, J. L. Watts, M. E. “In-Flight Acoustic Testing Techniques Using the YO-3A Acoustic Research Aircraft.” NASA TM-85895 February 1984
- Cross, J. L. “YO-3A Acoustics Research Aircraft Systems Manual.” NASA Technical Memorandum 85968 July 1984
- McCluer, M. S. Dearing, M. G. “Measuring Blade-Vortex Interaction Noise Using the YO-3A Acoustics Research Aircraft,” 22nd European Rotorcraft Forum Brighton, UK September 1996
- Schultz, K.-J. Splettstoesser, W. R. “Prediction of Helicopter Rotor Impulsive Noise Using Measured Blade Pressures,” American Helicopter Society 43rd Annual Forum St. Louis, MO May 18-20 1987
- Visintainer, J. A. Burley, C. L. Marcolini, M. A. Liu, S. R. “Acoustic Predictions Using Measured Pressures from a Model Rotor in the DNW,” American Helicopter Society 47th Annual Forum Phoenix, AZ May 6-9 1991
- Gallman, J. M. “The Validation and Application of a Rotor Acoustic Prediction Computer Program,” Army Science Conference Durham, NC June 12-15 1990
- Hassan, A. A. Tadghighi, H. Charles, B.D. “Aerodynamics and Acoustics of Three-Dimensional Blade-Vortex Interactions,” NASA CR 182026 July 1990
- Beaumier, P. Prieur, J. Rahier, G. Spiegel, P. Demargne, A. Tung, C Gallman, J. Yu, Y. H. Kube, R. Van der Wall, B. G. Schultz, K. -J. Splettstoesser, W. Brooks, T. F. Burley, C. L. Boyd, D. D. “Effect of Higher Harmonic Control on Helicopter Rotor Blade-Vortex Interaction Noise: Prediction and Initial Validation,” AGARD Symposium on Aerodynamics and Aeroacoustics of Rotorcraft Berlin, Germany Oct. 1994
- Tung, C Gallman, J. M. Kube, R. Wagner, W. Van der Wall, B. G. Brooks, T. F. Burley, C. L. Boyd, D. D. Rahier, G. Beaumier, P. “Prediction and Measurement of Blade-Vortex Interaction Loading,” 1st Joint CEAS/AIAA Aeroacoustics Conference Munich, Germany June 1995
- Gallman, J. M. Tung, C Schultz, K. J. Splettstoesser, W. Buchholz, H. Spiegel, P. Burley, C. L. Brooks, T. F. Boyd, D. D. “Effect of Wake Structure on Blade - Vortex Interaction Phenomena: Acoustic Prediction and Validation,” 1st Joint CEAS/AIAA Aeroacoustics Conference Munich, Germany June 1995
- Beaumier, P. Spiegel, P. “Validation of ONERA Aeroacoustic Prediction Methods for Blade-Vortex Interaction Using HART Tests Results,” American Helicopter Society 51st Annual Forum Fort Worth, TX May 9-11 1995
- Brooks, T. F. Boyd, D. D. Burley, C. L Jolly, R. J. “Aeroacoustic Codes for Rotor Harmonic and BVI Noise-CAMRAD.Mod1/HIRES,” AIAA Paper No. 96-1735 1996
- Burley, C. L. Marcolini, M. A. Brooks, T. F. “Tiltrotor Aeroacoustic Code (TRAC) Predictions and Comparison with Measurements,” American Helicopter Society's 52nd Annual Forum and Technology Display Washington, D. C. June 1996
- Weir, D. S. Jumper, S. J. Burley, C. L. Golub, R. A. “Aircraft Noise Prediction Program Theoretical Manual-Rotorcraft Systems Noise Prediction System (ROTONET),” NASA TM 83199 1995
- Johnson, W. “A Comprehensive Analytical Model of Rotorcraft Aerodynamics and Dynamics,” NASA TM 81182 June 1980
- Prichard, D. S. Boyd, D. D. Burley, C. L. “NASA/Langley's CFD-Based BVI Rotor Noise Prediction System: (ROTONET/FPRBVI) An Introduction and User's Guide,” NASA TM 109147 November 1994
- Strawn, R. C Caradonna, F. X. “A Conservative Full-Potential Model for Unsteady Transonic Rotor Flow,” AIAA Journal 25 2 February 1987
- Bridgeman, J. O. Steger, J. L. Caradonna, F. X. “A Conservative Finite-Difference Algorithm for the Unsteady Transonic Potential Equation in Generalized Coordinates,” AIAA Paper 82-1388 August 1982
- Farassat, F. Myers, M. K. “Extension of Kirchhoff's Formula To Radiation from Moving Surfaces,” Journal of Sound and Vibration 123 3 1988 451 461
- Brentner, K. S. Lyrintzis, A. S. Koutsavdis, E. K. “A Comparison of Computational Aeroacoustic Prediction Methods for Transonic Rotor Noise,” American Helicopter Society 52nd Annual Forum Washington, D. C. June 1996
- Farassat, F. “Quadrupole Source in Prediction of Noise of Rotating Blades-A New Source Description,” AIAA Paper 87-2675 1987
- Brentner, K. S. Holland, P. C. “An Efficient and Robust Method for Computing Quadrupole Noise,” American Helicopter Society Aeromechanics Specialist Conference Fairfield County, CT October 1995
- Brentner, K. S. “An Efficient and Robust Method for Predicting Helicopter Rotor High-Speed Impulsive Noise,” AIAA Paper 96-0151 1996
- Brentner, K. S. “Prediction of Helicopter Rotor Discrete Frequency Noise,” NASA TM 87721 October 1986
- Bagai, A. Leishman, J. G. “Rotor Free-Wake Modeling Using a Pseudo-implicit Technique-Including Comparisons with Experimental Data,” Journal of the American Helicopter Society 40 3 July 1995 29 41