The effect of tip geometry on active-twist rotor response

Annual Forum Proceedings - AHS International

Volumn 2, Issue , 2005, Pages 844-855

  Wilbur, Matthew L ^a   Sekula, Martin K ^a  

^a NASA LANGLEY RESEARCH CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ANHEDRAL; MINIMAL EFFECTS; ROTOR RESPONSE; ROTOR SYSTEMS; TIP GEOMETRY; TIP SHAPE;

EID: 84883540210     PISSN: 15522938     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (15)

1. 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," Journal of the American Helicopter Society, April 2002, pp. 123-133.
2. 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." Proceedings of the 58th Annual Forum of the American Helicopter Society, Montreal, Canada, June 11- 13, 2002.
3. Shin, S. J. and Cesnik C. E. S., "Closed-Loop Control Test of the NASA/Army/MIT Active Twist Rotor for Vibration Reduction." Proceedings of the 59th Annual Forum of the American Helicopter Society, Phoenix, AZ May 6-8, 2003.
4. Bernhard, A. P. F. and Wong, J., "Sikorsky Active Rotor Control Evaluation of the NASA/Army/MIT Active Twist Rotor." Presented at the 59th Annual Forum of the American Helicopter Society, Phoenix, AZ, May 6-8, 2003.
5. Booth, E. R. and Wilbur, M. L., "Acoustic Aspects of Active-Twist Rotor Control," Journal of the American Helicopter Society, January 2004, pp. 3-10.
6. Rodgers, J. P. and Hagood, N. W., "Development of an Integral Twist-Actuated Rotor Blade for Individual Blade Control," Active Materials and Structures Laboratory, AMSL Report #98-6, Massachusetts Institute of Technology, October 1998.
7. Derham, R., Weems, D., Mathew, M., and Bussom, R., "The Design Evolution of an Active Materials Rotor," American Helicopter Society 57th Annual Forum Proceedings, Washington, DC, May 9-11, 2001.
8. Sekula, M. K., Wilbur, M. L., and Yeager, W. T., Jr., "Aerodynamic Design Study of an Advanced Active Twist Rotor," Proceedings of the American Helicopter Society 4th Decennial Specialist's Conference on Aeromechanics, San Francisco, California, January 21-23, 2004.
9. Sekula, M. K., Wilbur, M. L., and Yeager, W. T., Jr., "Structural Design Study of an Advanced Active Twist Rotor." Presented at the 61st Annual Forum of the American Helicopter Society, Grapevine, TX, June 1-3, 2005.
10. Noonan, K. W.: Aerodynamic Characteristics of Two Rotorcraft Airfoils Designed for Application to the Inboard Region of a Main Rotor Blade. NASA TP-3009, AVSCOM TR-90-B-005, 1990.
11. Noonan, K. W.: Aerodynamic Characteristics of a Rotorcraft Airfoil Designed for the Tip Region of a Main Rotor Blade. NASA TM-4264, AVSCOM TR-91-B-003, 1991.
12. Johnson, W., CAMRAD II, Comprehensive Analytical Model of Rotorcraft Aerodynamics and Dynamics, Johnson Aeronautics, Palo Alto, California, 1994.
13. Bent, A. A., "Active Fiber Composite Material Systems for Structural Control Applications," Proceedings, SPIE's 6th International Symposium on Smart Structures and Materials, Newport Beach, CA, March 5-9, 2000.
14. Wilkie, W. K., et. al., "Low-Cost Piezocomposite Actuator for Structural Control Applications." Proceedings, SPIE's 7th International Symposium on Smart Structures and Materials, Newport Beach, CA, March 1-5, 1999.
15. Wilkie, W. K., Wilbur, M. L., and Mirick, P. H., "Aeroelastic Analysis of the NASA/Army/MIT Active Twist Rotor." Proceedings of the 55th Annual Forum of the American Helicopter Society, Montreal, Canada, May 25-27, 1999.