Progress toward a reduced blade-vortex-interaction rotor

34th Aerospace Sciences Meeting and Exhibit

Volumn , Issue , 1996, Pages

  Nelson, Carter ^a   Traub, Lance W ^a   Rediniotis, Othon K ^a  

^a Texas AandM University   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AERODYNAMICS; AEROSPACE ENGINEERING; KNOWLEDGE BASED SYSTEMS; VORTEX FLOW;

ACTIVE MATERIAL; AERODYNAMIC SYSTEMS; BLADE-VORTEX INTERACTION; ENGINEERING DEPARTMENT; KNOWLEDGE BASED; SCIENTIFIC FINDINGS;

IMPULSE NOISE;

EID: 85087241743     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.2514/6.1996-150     Document Type: Conference Paper

References (33)

1. George, A. R., Helicopter Noise: State-of-the-Art, Journal of Aircraft, Vol. 15, Nov. 1978, pp. 707-715.
2. Hardin, J. C. and Lamkin, S. L., Aeroacoustic Interaction of a Distributed Vortex with a Lifting Joukowski Airfoil, AIAA Paper 84-2287, Oct. 1984.
3. Hardin, J. C. and Lamkin, J. P., An Euler Code Calculation of Blade-Vortex Interaction Noise, Transactions of AMSE, Journal of Vibration, Acoustics, Stress, and Reliability Design, Vol. 109, No. l, Jan. 1987, pp. 29-36.
4. Hardin, J. C. and Mason, J. P., A New Look at Sound Generation by Blade-Vortex Interaction, Transactions of AMSE, Journal of Vibration, Acoustics, Stress, and Reliability Design, Vol. 107, No. 2, April 1985, pp. 224-229.
5. Widnall, S. E., Helicopter Noise due to Blade-Vortex Interaction, The Journal of the Acoustical Society of America, Vol. 50, No. l, 1971, pp. 354-365.
6. Martinez, R. and Windall, S. E., An Aeroacoustic Model for High-Speed, Unsteady Blade-Vortex Interaction, AIAA Journal, Vol. 21, No. 9, Sept. 1983, pp. 1225-1231.
7. Lorber, P. F., Blade-Vortex Interaction Data Obtained from a Pressure-Instrumented Model UH-60A Rotor at the DNW, Journal of the American Helicopter Society, July 1993, pp. 26-34.
8. Splettstoesser, W. R., and Schultz, K. J., Rotor Blade-Vortex Interaction Impulsive Noise Source Localization, AIAA Journal, Vol. 28, No. 4, April 1990, pp. 593-600.
9. Schmitz, F. H. et al., Model to Full-Scale Comparisons of Helicopter Blade-Vortex Interaction Noise, Journal of the American Helicopter Society, April 1984, pp. 16-25.
10. Martin, R. M., and Elliot, J. W., Comparison of Experimental and Analytical Predictions of Rotor Blade-Vortex Interaction Using Model Scale Acoustic Data, AIAA Paper 84-2269, Oct. 1984.
11. Booth, E. R. and Yu, J. C., Two dimensional Blade-Vortex Interaction Flow Visualization Investigation, AIAA Paper 84-2307, Oct. 1984.
12. Booth, E. R., Experimental Observations of TwoDimensional Blade-Vortex Interaction, AIAA Journal, Vol. 28, No. 8, Aug. 1990, pp. 1353-1359.
13. Smith, D. and Sigi, D., Helicopter Rotor Tip Shapes for Reduced Blade-Vortex Interaction an Experimental Investigation, AIAA Paper 95-0192, Jan. 1995.
14. Lee, S., Reduction of Blade-Vortex Interaction Noise Through Porous Leading Edge, AIAA Journal, Vol. 32, No. 3, March 1994.
15. Brooks, T. F. and Booth, E. R., The Effects of Higher Harmonic Control on Blade-Vortex Interaction Noise and Vibration, Journal of the American Helicopter Society, July 1993, pp. 45-54.
16. Simonich, J. et al., Active Aerodynamic Control of Wake-Airfoil Interaction Noise-Experiment, AIAA Journal, Vol. 31, No. 10, Oct. 1993, pp. 1761-1768.
17. Marcolini, M. A., Booth, E. R. Jr., Tadghighi H., Hassan, A. A., Smith, C. D., and Becker, L. E., Control of BVI Noise Using an Active Trailing Edge Flap, Proc. American Helicopter Society Vertical Lift Aircraft Design Conference, San Francisco, CA, Jan. 1995.
18. Chopra, I. and Walz, C., Design and Testing of a Helicopter Rotor Model with Smart Trailing Edge Flaps, AIAA Paper 94-1767, April 1994.
19. Chen, P. C. and Chopra, I., "A Feasibility Study to Build a Smart Rotor: Induced-Strain Actuation of Airfoil Twisting Using Piezoceramic Crystals," SPIE, Vol. 1917, Smart Struct, and Intel. Systems, 1993.
20. Cornelius, K. C., Analysis of Vortex Bursting Utilizing Three-Dimensional Laser Measurements, Journal of Aircraft, Vol. 32, No. 2, 1995, pp. 297-306.
21. Robinson, B. A., Barnett, R. M., and Agrawal, S., Simple Numerical Criterion for Vortex Breakdown, AIAA Journal, Vol. 32, No. 1, 1994, pp. 116-122.
22. Rediniotis, O. K. and Traub L. W. Instabilities of Vortex Breakdown; Their Structure and Growth, submitted to AIAA Journal, also AIAA Paper 95-2308, lune 1995, with Klute, S. M., Telionis, D. P. and Moore, C.
23. Patterson, J. C., Hastings, E. C. Jr., and Jordan, F. L. Jr., "Ground Development and Flight Correlation of the Vortex Attenuating Spline Device," NASA Symposium on Wake Vortex Minimization, NASA SP-409, Feb. 25-26, 1976, pp. 271-303.
24. O'Neil, Todd and Strganac, T. W., Nonlinear Aeroelastic Response-Analyses and Experiments, AIAA Paper 951404, April, 1995.
25. Traub, L. W., and Nurick, A., "Effects of Wing-Tip Vortex Flaps," Journal of Aircraft, Vol. 30, No. 4, 1993, pp. 557-560.
26. Traub, L. W., "A Subsonic Wind-Tunnel Investigation of the Effect of Sharp Edged Sheared Tips on a Moderate Aspect Ratio Flat Plate Wing," MS thesis, University of Witwatersrand, Johannesburg, South Africa, June, 1992.
27. Bilanin, A. J., and Donaldson, C. D., "Estimation of Velocities and Roll-Up in Aircraft Wake Vortices," Journal of Aircraft, Vol. 12, No. 7, 1975, pp. 578-585.
28. Brown, C. E., "Aerodynamics of Wake Vortices," AIAA Journal, Vol. 11, No. 4, 1973, pp. 531-536.
29. Fung, Y. C., An Introduction to the Theory of Aeroelasticitv. Dover Publications Inc., New York, 1993.
30. Lee, B. H. K, and Desrochers, J., Flutter Analysis of a Two-Dimensional Airfoil Containing Structural Nonlinearities, National Research Council Canada, LR-618, May, 1987.
31. Houbolt, J. C., A Recurrence Matrix Solution for the Dynamic Response of Elastic Aircraft, Journal of Aeronautical Sciences, Vol. 17, No. 9, 1950, pp. 540-550.
32. Schaeffler, N. W. and Telionis, D. P., Furey, D. A and O. K. Rediniotis, "Neural-Network and Fuzzy-Logic Controllers for High-Alpha Delta Wing Maneuvers with Deployable Control Surfaces," to be presented at the 34th AIAA Aerospace Sciences Meeting, Reno, Nevada, January 1996.
33. Rediniotis, O. K. and Chrysanthakopoulos, G., "A Wide-Range, High-Accuracy Neural/Fuzzy Calibration Technique for Flow-Diagnostics Instrumentation," submitted to AIAA Journal, also AIAA Paper No. 95-0020, 33rd AIAA Aerospace Sciences Meeting, Reno, Nevada, January 1995.