Reducing trailing edge flap deflection requirements in swashplateless primary control with a moveable horizontal tail

Annual Forum Proceedings - AHS International

Volumn 3, Issue , 2009, Pages 1921-1939

  Bluman, James ^a   Gandhi, Farhan ^b  

^a UNITED STATES MILITARY ACADEMY   (United States)

^b PENNSYLVANIA STATE UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

CURRENT ACTUATORS; FIXED FRAMES; FORWARD SPEED; HIGH SPEED FLIGHT; MAINTENANCE REQUIREMENT; NONDIMENSIONAL; PERFORMANCE PENALTIES; PRIMARY CONTROL; RIGID ROTATION; ROTATING NATURAL FREQUENCY; TRAILING EDGE FLAPS;

ACTUATORS; AUTOMOBILE PARTS AND EQUIPMENT; DEFLECTION (STRUCTURES); HELICOPTERS; ROTATION;

METHOD OF MOMENTS;

EID: 70350496634     PISSN: 15522938     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (22)

1. Shen, J. and Chopra, I., "Aeroelastic Modeling of Trailing-Edge-Flap Helicopter Rotors Including Actuator Dynamics," Journal of Aircraft, Vol. 41, (6), Nov-Dec 2004.
2. Shen, J. and Chopra, I., "Aeroelastic Stability of Smart Trailing-Edge Flap Helicopter Rotors," Proceedings of the 42nd Structures, Structural Dynamics and Materials Conference and Adaptive Structures Forum, Seattle, WA, Apr 2001.
3. Shen, J. and Chopra, I., "Actuation Requirements for a Swashplateless Helicopter Control System with Trailing Edge Flaps," Proceedings of the 43rd AIAA/ASME/ASCE/AHS Structures, Structural Dynamics, and Materials Conference, Denver, Colorado, April 2002.
4. Shen, J., "Comprehensive Aeroelastic Analysis of Helicopter Rotor with Trailing Edge Flap for Primary Control and Vibration Control," University of Maryland, Department of Aerospace Engineering, College Park, MD, PhD Thesis 2003.
5. Shen, J., "A Parametric Design Study for a Swashplateless Helicopter Rotor with Trailing Edge Flaps," American Helicopter Society 58th Annual Forum Proceedings, Montreal, Canada, June 2002.
6. Shen, J. and Chopra, I., "Actuation Requirements of Swashplateless Trailing-Edge Flap Helicopter Rotor in Maneuvering and Autorotation Flight," American Helicopter Society 60th Annual Forum Proceedings, Baltimore, MD, Jun 2004.
7. Ormiston, R., "Aeroelastic Considerations for Rotorcraft Primary Control with On-Blade Elevons," American Helicopter Society 57th Annual Forum Proceedings, Washington, DC, May 2001.
8. 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.
9. Falls, J., Datta, A., and Chopra, I., "Design and Analysis of Training Edge Flaps and Servotabs for Primary Control," American Helicopter Society 63rd Annual Forum Proceedings, Virginia Beach, VA, May 1 -3, 2007.
10. 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.
11. Deiterich, O. and Enenkl, B., "Trailing Edge Flaps for Active Rotor Control Aeroelastic Characteristics of the ADASYS Rotor System," American Helicopter Society 62nd Annual Forum Proceedings, Phoenix, AZ, May 2006.
12. Gandhi, F., "Helicopter Horizontal Tail Incidence Control to Reduce Rotor Cyclic Pitch and Blade FLapping," American Helicopter Society 60th Annual Forum Proceedings, Baltimore, MD, Jun 2004.
13. Theodorsen, T. and Garrick, I., "Nonstationary Flow About a Wing-Aileron-Tab Combination Including Aerodynamic Balance," NACA Technical Report No. 736 1942.
14. Yeo, H., "UH60A-Blade-Property-Ver2-02OCT .xls," UH-60a Blade Property Data File for NRTC/RITA Airloads Workshop Participants October 2002.
15. Leishman, J., Principles of Helicopter Aerodynamics, Second Edition ed. Cambridge: Cambridge University Press, 2006.
16. Theodorsen, T., "General Theory of Aerodynamic Instability and the Mechanism of Flutter," NACA, Technical Report No. 496 1935.
17. Jose, A., Sitaraman, J., and Baeder, J., ""An Investigation Into the Aerodynamics of Trailing Edge Flap and Flap-Tab Airfoils Using CFD and Analytical Methods," American Helicopter Society 63rd Annual Forum Proceedings, Virginia Beach, VA, May 2007.
18. Hassan, A., Straub, F., and Noonan, K., "Experimental/Numerical Evaluation of Integral Trailing Edge Flaps for Helicopter Rotor Applications," Journal of the American Helicopter Society, Vol. 50, (1), Jan 2005.
19. Bousman, W. and Kufeld, R., "UH-60 Airloads Catalog," NASA Technical Report No. 2005-212827 August 2005.
20. HQ, D., Operator's Manual for UH-60 A Helicopter, TM1-1520-237-10. Washington, DC, 2003.
21. Howlett, J., "UH-60 Black Hawk Engineering Simulation Program," NASA Contractor Report 166309 Dec 1981.
22. Yeo, H., Bousman, W., 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.