Assessment of active controls for rotor performance enhancement

Journal of the American Helicopter Society

Volumn 53, Issue 2, 2008, Pages 152-163

  Yeo, Hyeonsoo ^a  

^a NASA AMES RESEARCH CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AIRFOILS; DRAG; JET FLAPS; LOAD LIMITS;

BLADE CONTROL; GURNEY FLAP; LEADING EDGE SLAT; OSCILLATORY JET; TRAILING EDGE FLAP;

HELICOPTER ROTORS;

EID: 43749097040     PISSN: 00028711     EISSN: None     Source Type: Journal    
DOI: 10.4050/JAHS.53.152     Document Type: Article

References (31)

1. Noonan, K. W., Allison, D. O., and Stanaway, S., "Investigation of a Slotted Rotorcraft Airfoils at Mach Numbers from 0.20 to 0.88 at Full-Scale Reynolds Numbers," American Helicopter Society Aeromechanics Specialists Conference Proceedings, San Francisco, CA, January 19-21, 1994.
2. Narramore, J. C., McCroskey, W. J., and Noonan, K. W., "Design and Evaluation of Multi-Element Airfoils for Rotorcraft," American Helicopter Society 55th Annual Forum Proceedings, Montreal, Quebec, Canada, May 25-27, 1999.
3. Chandrasekhara, M. S., Martin, P. B., and Tung, C., "Compressible Dynamic Stall Control using a Variable Droop Leading Edge Airfoil," Paper AIAA 2003-48, 41st Aerospace Science Meeting and Exhibit Proceedings, Reno, NV, January 6-9, 2003.
4. Martin, P. B., McAlister, K. W., and Chandrasekhara, M. S., "Dynamic Stall Measurements and Computations for a VR-12 Airfoil with a Variable Droop Leading Edge," American Helicopter Society 59th Annual Forum Proceedings, Phoenix, AZ, May 6-8, 2003.
5. Hassan, A. A., Nagib, H., and Wygnanski, I., "Oscillatory Jets - Benefits and Numerical Modeling Issues," American Helicopter Society 58th Annual Forum Proceedings, Montreal, Canada, June 11-13, 2002.
6. Hassan, A. A., "Hybrid Pulsed Suction/Pulsed Blowing Jets for Improved Airfoil Stall/Post Stall Aerodynamics," American Helicopter Society 61st Annual Forum Proceedings, Grapevine, TX, June 1-3, 2005.
7. Kentfield, J. A. C., "The Potential of Gurney Flaps for Improving the Aerodynamic Performance of Helicopter Rotors," Paper AIAA 1993-4883, AIAA International Powered Lift Conference Proceedings, Santa Clara, CA, December 1-3, 1993.
8. Maughmer, M., Lesieutre, G., and Kinzel, M., "Miniature Trailing-Edge Effectors for Rotorcraft Performance Enhancement," American Helicopter Society 61st Annual Forum Proceedings, Grapevine, TX, June 1-3, 2005.
9. Myose, R., Papadakis, M., and Heron, I., "Gurney Flap Experiments on Airfoils, Wings, and Reflection Plane Model," Journal of Aircraft, Vol. 35, (2), March-April 1998, pp. 206-211.
10. Chandrasekhara, M. S., Martin, P. B., and Tung, C., "Compressible Dynamic Stall Performance of a Variable Droop Leading Edge Airfoil with a Gurney Flap," Paper AIAA 2004-41, 42nd Aerospace Science Meeting and Exhibit Proceedings, Reno, NV, January 5-8, 2004.
11. Jacklin, S. J., Haber, A., de Simone, G., Norman, T. R., Kitaplioglu, C., and Shinoda, P., "Full-Scale Wind Tunnel Test of an Individual Blade Control System for a UH-60 Helicopter," American Helicopter Society 58th Annual Forum Proceedings, Montreal, Canada, June 11-13, 2002.
12. Jacklin, S. A., Blaas, A., Teves, D., and Kube, R., "Reduction of Helicopter BVI Noise, Vibration, and Power Consumption through Individual Blade Control," American Helicopter Society 51th Annual Forum Proceedings, Fort Worth, TX, May 9-11, 1995.
13. Kessler, C., Fuerst, D., and Arnold, U. T. P., "Open Loop Flight Test Results and Closed Loop Status of the IBC System on the CH-53G Helicopter," American Helicopter Society 59th Annual Forum Proceedings, Phoenix, AZ, May 6-8, 2003.
14. Chen, P. C., and Chopra, I., "Wind Tunnel Testing of a Smart Rotor with Induced Strain Actuation of Blade Twist," AIAA Journal, Vol. 35, (1), 1997, pp. 6-16.
15. Rodgers, J. P., and Hagood, N. W., "Design, Manufacture, and Testing of an Integral Twist-Actuated Rotor Blade," 8th International Conference on Adaptive Structures and Technology Proceedings, Wakayama, Japan, October 29-31, 1997.
16. Wilbur, M. L., Mirick, P H., Yeager, W. T., Jr., Langston, C. W., Cesnik, C. E. S., and Shin, S. J., "Vibratory Loads Reduction Testing of the NASA/Army/MIT Active Twist Rotor," American Helicopter Society 57th Annual Forum Proceedings, Washington, DC, May 9-11, 2001.
17. Wilbur, M. L., Yeager, W. T., Jr., and Sekula, M. K., "Further Examination of the Vibratory Loads Reduction Results from the NASA/Army/ MIT Active Twist Rotor Test," American Helicopter Society 58th Annual Forum Proceedings, Montreal, Canada, June 11-13, 2002.
18. Sekula, M. K., Wilbur, M. L., and Yeager, W. T., Jr., "Aerodynamic Design Study of an Advanced Active Twist Rotor," American Helicopter Society 4th Decennial Specialists' Conference on Aeromechanics Proceedings, San Francisco, CA, January 21-23, 2004.
19. Dawson, S., Marcolini, M., Booth, E., Straub, F., Hassan, A., Tadghighi, H., and Kelly, H., "Wind Tunnel Test of an Active Flap Rotor: BVI Noise and Vibration Reduction," American Helicopter Society 51st Annual Forum Proceedings, Fort Worth, TX, May 9-11, 1995.
20. Milgram, J., Chopra, I., and Straub, F., "Rotors with Trailing Edge Flaps: Analysis and Comparison with Experimental Data," Journal of the American Helicopter Society, Vol. 43, (4), October 1998, pp. 319-332.
21. Geissler, W., "Dynamic Stall Control by Static Flap Deflection," Final Report to the European Research Office of the U.S. Army, Contract Number N69171-00-M-5987, September 2002.
22. Hassan, A. A., Straub, F., and Noonan, K. W., "Experimental/ Numerical Evaluation of Integral Trailing Edge Flaps for Helicopter Rotor Application," Journal of the American Helicopter Society, Vol. 50, (1), January 2005, pp. 3-17.
23. Fulton, M. V., "Aeromechanics of the Active Elevon Rotor," American Helicopter Society 61st Annual Forum Proceedings, Grapevine, TX, June 1-3, 2005.
24. Department of the Army, "1998 Army Science and Technology Master Plan, Rotary Wing Vehicle (RWV) Technology Development Approach (TDA)," 1998.
25. Johnson, W., "Technology Drivers in the Development of CAMRAD II," American Helicopter Society Aeromechanics Specialists Conference Proceedings, San Francisco, CA, January 19-21, 1994.
26. Yeo, H., Bousman, W. G., and Johnson, W., "Performance Analysis of a Utility Helicopter with Standard and Advanced Rotors," Journal of the American Helicopter Society, Vol. 49, (3), July 2004, pp. 250-270.
27. Yeo, H., "Calculation of Rotor Performance and Loads under Stalled Conditions," American Helicopter Society 59th Annual Forum Proceedings, Phoenix, AZ, May 6-8, 2003.
28. Callahan, C. B., "Application of a Comprehensive Analytical Model of Rotorcraft Aerodynamics and Dynamics (CAMRAD) to the McDonnell Douglas AH-64A Helicopter," NASA CR 177455, November 1988.
29. Yeo, H., and Lim, J. W., "Application of a Slotted Airfoil for UH-60A Helicopter Performance," American Helicopter Society Aerodynamics, Acoustics, and Test and Evaluation Technical Specialists' Meeting Proceedings, San Francisco, CA, January 23-25, 2 2002.
30. Drela, M., "Newton Solution of Coupled Viscous/Inviscid Multielement Airfoil Flows," Paper AIAA 90-1470, AIAA 21st Fluid Dynamics, Plasma Dynamics, and Lasers Conference Proceedings, Seattle, WA, June 18-20, 1990.
31. Cheng, R. P., and Celi, R., "Optimum Two-Per-Revolution Inputs for Improved Rotor Performance," Journal of Aircraft, Vol. 42, (6), November-December 2005, pp. 1409-1417.