Effect of rotor wake distortion on the stability of flapping dynamics

Annual Forum Proceedings - AHS International

Volumn 2, Issue , 2005, Pages 992-1002

  Zhao, Jinggen ^a   Prasad, J V R ^a   Peters, David A ^b  

^a Georgia Institute of Technology   (United States)

^b WASHINGTON UNIVERSITY IN ST LOUIS   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

COUPLED ROTORS; FLAPPING DYNAMICS; FLIGHT SIMULATION; GEORGIA INSTITUTE OF TECHNOLOGY; MANEUVERING FLIGHT; RESPONSE BEHAVIOR; ROTOR WAKE DISTORTION; WAKE DISTORTION;

DYNAMICS; FLIGHT SIMULATORS; HELICOPTERS; RIGID ROTORS; WAKES;

DYNAMIC MODELS;

EID: 84883500474     PISSN: 15522938     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (40)

1. Padfield, G. D., Helicopter Flight Dynamics: The Theory and Application of Flying Qualities and Simulation Modeling, AIAA Education Series, 1995.
2. Anon., Helicopter Simulator Qualification, Advisory Circular, FAA AC No. 120-64, October 1994.
3. Takahashi, M. D., "A Flight Dynamic Helicopter Mathematical Model with a Single Flap-Lag-Torsion Main Rotor", NASA TM 102267, USAAVSCOM TM 90A004, February 1990.
4. Chaimovitch, M., Rosen, A., Mansur, M. H., and Tischler, M. B., "Investigation of the Flight Mechanics Simulation of a Hovering Helicopter," the American Helicopter Society 48th Annual Forum, Washington D.C., June 1999, pp. 1237-1256.
5. He, C. J. and Lewis, W. D., "A Parametric Study of Real-Time Mathematical Modeling Incorporating Dynamic Wake and Elastic Blades," the American Helicopter Society 48th Annual Forum, Washington, D.C., June 1999, p. 1181-1196.
6. Tischler, M. B., Driscoll, J. T., Cauffman, M. G.,, and Freedman, C. J., "Study of Bearingless Main Rotor Dynamics from Frequency Response Wind Tunnel Test Data," American Helicopter Society Aeromechanics Specialists Conference, San Francisco, CA, Jan 19-21 1994.
7. Harding, J. W., and Bass, S. M., "Validation of a Flight Simulation Model of the AH-64 Apache Attack Helicopter against Flight Test Data," the American Helicopter Society 46th Annual Forum, Washington D.C., May 1990.
8. Eshow, M. M., Orlandi, I. D.,, and Bonaita, D. G., "Results of an A109 Simulation Validation, and Handling Qualities Study," 14th European Rotorcraft Forum, Milano, Italy, September 1998.
9. Prouty, R. W., "The Case of the Cross-Coupling Mystery," Rotor, and Wing, Vol. 28, No. 6, 1994, pp. 48-49.
10. Von Grunhagen, W., "Dynamic Inflow Modeling for Helicopter Rotors, and Its Influence on the Prediction of Cross-Couplings," Proceedings of the AHS Aeromechanics Specialists Conference, Bridgeport, CT, October 1995.
11. Ballin, M. G., and Dalang-Secretan, M. A., "Validation of the Dynamic Response of a Blade-Element UH-60 Simulation Model in Hovering Flight." the American Helicopter Society 46th Annual Forum Proceedings, Washington D.C., May 1990.
12. Fletcher, J. W., Tischler, M. B., "Improving Helicopter Flight Mechanics Models with Laser Measurements of Flapping," the American Helicopter Society 53rd Annual Forum Proceedings, Virginia Beach, VA, 29 April-1 May, 1997.
13. Mansur, M. H., Tischler, M. B., "An Empirical Correction Method for Improving Off-Axis Response in Flight Mechanics Helicopter Models," Journal of the American Helicopter Society, Vol. 43, No.2, April 1998. pp. 94-102.
14. Keller, J.D., and Curtiss, H.C., Jr., "Modeling the Induced Velocity of a Maneuvering Helicopter," American Helicopter Society 52nd Annual Forum Proceedings, Washington, D.C., June 4-6, 1996, pp.841-851.
15. Keller, J.D., "An Investigation of Helicopter Dynamic Coupling Using an Analytical Model," Journal of the American Helicopter Society, Vol.41 (3), July 1995, pp.322-330.
16. Barocela, E., Peters, D.A., Krothapaiil, K.R., and Prasad, J.V.R., "The Effect of Wake Distortion on Rotor Inflow Gradients, and Off-Axis Coupling," AIAA paper 97-3559, 1997.
17. Rosen, A., and Isser A., "A New Model of Rotor Dynamics During Pitch, and Roll of a Helicopter", Journal of the American Helicopter Society, Vol.40,(3), July, 1995, pp.17-28.
18. Basset, P.M., and Techen-Fo, F., "Study of the Rotor Wake Distortion Effects on the Helicopter Pith-Roll Cross-Couplings," Proceedings of the 24th European Rotorcraft Forum, Marseilles, France, September 1998.
19. Bagai, A., Leishman, J.G., and Park, J., "Aerodynamic Analysis of a Helicopter in Steady Maneuvering Flight Using a Free-Vortex Rotor Wake Model," Journal of the American Helicopter Society, April, 1999, pp 109-120.
20. Krothapalli, K.R., Prasad, J.V.R., and Peters, D.A., "Helicopter Rotor Dynamic Inflow Modeling for Maneuvering Flight," Journal of the American Helicopter Society, Vol. 46, No. 2, April 2001, pp. 129-139.
21. Simons, I. A., and Modha, A. N., "Gyroscopic Feathering Moments, and the "Bell Stabilizer Bar" on Helicopter Rotors," the 2002 European Rotorcraft Forum, Bristol, England, September 17-20, 2002, pp. 90-1~ 90-8.
22. Theodore, C., and Celi, R., "Prediction of the Off-Axis Response to Cyclic Pitch Using a Maneuvering Free Wake Model," Twenty Fifth European Rotorcraft Forum, Rome, Italy, September 14-16, 1999
23. He, C., Lee, C. S.,, and Chen, W., "Rotorcraft Simulation Model Enhancement to Support Design, Testing, and Operational Analysis," the American Helicopter Society 55th Annual Forum, Montreal, Canada, May 25-27, 1999.
24. Pitt, D. M., and Peters, D. A., "Theoretical Prediction of Dynamic Inflow Derivatives," Vertica, Vol. 5, No. 1, 1981.
25. He, C., Development, and Application of a Generalized Dynamic Wake Theory for Lifting Rotors, Ph.D. thesis, School of Aerospace Engineering, Georgia Institute of Technology, Atlanta, Georgia, 1989.
26. Schulein, G. J., Tischler, M. B., Mansur, M. H.,, and Rosen, A., "Validation of Cross Coupling Modeling Improvements for UH-60 Flight Mechanics Simulations," Journal of the American Helicopter Society, Vol. 47, No. 3, July 2002, pp. 209-213.
27. Barocela, E. B., The Effect of Wake Distortion on Dynamic Inflow for Lifting Rotors, Master's thesis, School of Mechanical Engineering, Washington University, St. Louis, Missouri, 1997.
28. Zhao, J., Prasad, J. V. R., and Peters, D. A., "Rotor Dynamic Wake Distortion Model for Helicopter Maneuvering Flight", the American Helicopter Society 58th Annual Forum, Montreal, Canada, 2002.
29. Zhao, J., Prasad, J. V. R., and Peters, D. A., "Simplified Dynamic Wake Distortion Model for Helicopter Transitional Flight", Proceedings of the 2002 AIAA Atmosphere Flight Mechanics Conference, Monterey, California, August 5-8, 2002.
30. Abott, W.Y., Benson, J.O., Oliver, R.G., and Williams, R.A., "Validation Flight Test of UH-60A for Rotorcraft Systems Integration Simulator," USAAEFA Project Final Report, No. 79-24, September 1982.
31. Schulein, G., "Improvements to a High Fidelity Helicopter Math Model," Master of Science Thesis, University of California, Davis, CA, 2001.
32. Curtiss, H.C. Jr., "Aerodynamic Models, and the Off-Axis Response," the American Helicopter Society 55th Annual Forum Proceedings, Montreal, Canada, May 25-27, 1999.
33. Rosen, A., "Approximate Actuator Disk Model of a Rotor in Hover or Axial Flow Based on Vortex Modeling", Journal of the American Helicopter Society, Vol. 49, No. 1, January 2004, pp. 66-79.
34. Rosen, A., "Approximate Actuator Disk Model of a Rotor in Hover or Axial Flow Based on Potential Flow Equations", Journal of the American Helicopter Society, Vol. 49, No. 1, January 2004, pp. 80-92.
35. Zhao, J., Prasad, J.V.R., and Peters, D.A., "Rotor Dynamic Wake Distortion Model For Helicopter Maneuvering Flight", Journal of the American Helicopter Society, Vol. 49(4), October, 2004. pp 414-424.
36. Zhao, J., Prasad, J.V.R., and Peters, D.A., "Investigation of Wake Curvature Dynamics For Helicopter Maneuvering Flight Simulation", the American Helicopter Society 59th Annual Forum, Phoenix, Arizona, May 6-8, 2003.
37. Zhao, J., Prasad, J.V.R., and Peters, D.A., "Validation of a Rotor Dynamic Wake Distortion Model for Helicopter Maneuvering Flight Simulation", the American Helicopter Society 60th Annual Forum, Baltimore, Maryland, June 7-10, 2004.
38. Howlett, J.J., "UH-60 Black Hawk Engineering Simulation Program, Volume I - Mathematical Model," NASA CR 166309, December 1981.
39. Johnson, W., Helicopter Theory, Dover Publications, Inc., 1990.
40. Keller, J. D., The Effect of Rotor Motion on the Induced Velocity In Predicting the Response of Rotorcraft, Ph.D. thesis, Department of Mechanical, and Aerospace Engineering, Princeton University, Princeton, NJ, 1998.