On power and actuation requirement in swashplateless primary control using trailing-edge flaps

Annual Forum Proceedings - AHS International

Volumn 2, Issue , 2010, Pages 1820-1836

  Duling, Christopher ^a   Gandhi, Farhan ^a   Straub, Friedrich ^b  

^a PENNSYLVANIA STATE UNIVERSITY   (United States)

^b BOEING COMPANY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ADVANCING SIDE; DYNAMIC PRESSURES; GROSS WEIGHT; POWER PENALTY; PRIMARY CONTROL; ROTOR POWER; TRAILING-EDGE FLAPS; UTILITY HELICOPTERS;

AIRCRAFT CONTROL; DEFLECTION (STRUCTURES); DRAG; HELICOPTERS; SPEED; TORSIONAL STRESS;

HELICOPTER ROTORS;

EID: 84884378252     PISSN: 15522938     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (18)

1. Straub, F. and Charles, B. "Preliminary Assessment of Advanced Rotor/Control System Concepts (ARCS)," Technical Report 90-D03, USA AVSCOM, 1990.
2. Ormiston, R., "Aeroelastic Considerations for Rotorcraft Primary Control with On-Blade Elevons," American Helicopter Society 57th Annual Forum Proceedings, Washington, DC, May 2001.
3. Shen, J., and I. Chopra, I., "A Parametric Design Study for a Swashplateless Helicopter Rotor with Trailing-Edge Flaps," Journal of the American Helicopter Society, Vol. 49, No. 1, January 2004, pp. 43-53.
4. Shen, J., and I. Chopra. "Aeroelastic Stability of Trailing-Edge Flap Helicopter Rotors," Journal of the American Helicopter Society, Vol. 48, No. 4, October 2003, pp. 236-243.
5. Shen, J., and Chopra, I., "Aeroelastic Modeling of Trailing-Edge-Flap Helicopter Rotors Including Actuator Dynamics," Journal of Aircraft, Vol. 41, No. 6, Nov-Dec 2004, pp. 1465-1472.
6. Shen, J., and Chopra, I., "Swashplateless Helicopter Rotor with Trailing-Edge Flaps," Journal of Aircraft, Vol. 41, No. 2, March-April 2004, pp. 208-214.
7. Shen, J., Yang, M., and Chopra, I., "Swashplateless Helicopter Rotor System with Trailing-Edge Flaps for Flight and Vibration Controls," Journal of Aircraft, Vol. 43, No. 2, Apr-May 2006, pp. 346-352.
8. Theodorsen, T. and Garrick, I. E. "Nonstationary Flow about a Wing-Aileron-Tab Combination Including Aerodynamic Balance," Technical Report No. 736, NACA, 1942.
9. Falls, J., Datta, A., and Chopra, I., "Integrated Trailing-Edge Flaps and Servotabs for Helicopter Primary Control," American Helicopter Society 62nd Annual Forum Proceedings, Phoenix, AZ, May 2006.
10. Falls, J., Datta, A., and Chopra, I., "Design and Analysis of Trailling Edge Flaps and Servotabs for Primary Control," American Helicopter Society 63rd Annual Forum Proceedings, Virginia Beach, VA, May 1-3, 2007.
11. Falls, J., Datta, A., and Chopra, I., "Performance Analysis of Trailing Edge Flaps in Helicopter Primary Control," Proceedings of the AHS Specialist's Conference on Aeromechanics, San Francisco, CA, Jan 2008.
12. Gandhi, F., and Sekula, M., "Helicopter Horizontal Tail Incidence Control to Reduce Rotor Cyclic Pitch and Blade Flapping," Proceedings of the 60th Annual Forum of the American Helicopter Society, Baltimore, Maryland, June 2004.
13. Bluman, J., and Gandhi, F., "Reducing Trailing Edge Flap Deflection Requirements in Swashplateless Primary Control with a Moveable Horizontal Tail," Proceedings of the 65th Annual AHS International Forum and Technology Display, Grapevine, Texas, May 27-29, 2009.
14. Gandhi, F., Yoshizaki, Y., and Sekula, M., "Swashplateless Control of a Rotary-Wing UAV using Variable RPM and a Movable CG," Proceedings of the American Helicopter Society 62nd Annual Forum, Phoenix, AZ, May 9-11, 2006.
15. Duling, C. T., "Further Investigations on Helicopter Primary Control Using Trailing Edge Flaps," Master's Thesis, the Pennsylvania State University, University Park, May 2009.
16. Duling, C. T., Gandhi, F., Baeder, J., Jose, A. I., "Analysis of CFD Predictions for the SC-1094R8 Airfoil with a Trailing Edge Flap," under review Journal of Aircraft.
17. Straub, F.K., and Merkley, D.J., "Design of a Servo-flap Rotor for Reduced Control Loads," Proc. of the 50th Annual AHS International Forum, Washington, D.C., May 1994.
18. Steiner, J., Gandhi, F., and Yoshizaki, Y., "An Investigation of Variable Rotor RPM on Performance and Trim," Proceedings of the 64th Annual AHS International Forum and Technology Display, Montreal, Canada, April 29-May 1, 2008.