Comprehensive analysis, prediction, and validation of UH-60A blade loads in unsteady maneuvering flight

Annual Forum Proceedings - AHS International

Volumn 3, Issue , 2007, Pages 2101-2122

  Abhishek, A ^a   Datta, Anubhav ^a   Chopra, Inderjit ^a  

^a UNIVERSITY OF MARYLAND   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACCURATE PREDICTION; AERODYNAMIC MODELING; COMPREHENSIVE ANALYSIS; FLIGHT DYNAMICS MODEL; INITIAL DEVELOPMENT; REDUCED ORDER MODELS; SATISFACTORY PREDICTIONS; STRUCTURAL DYNAMICS MODELS;

AERODYNAMIC STALLING; FLIGHT DYNAMICS; FORECASTING; LIFT; STRUCTURAL DYNAMICS; VOLTAGE STABILIZING CIRCUITS;

FINITE ELEMENT METHOD;

EID: 84884332494     PISSN: 15522938     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (25)

1. Datta, A. and Chopra, I., "Prediction of UH-60A Main Rotor Structural Loads using CFD/Comprehensive Analysis Coupling," European Rotorcraft Forum 32 Proceedings, Maastricht, The Netherlands, September 12-14, 2006..
2. Kufeld, R. M., "High Load Conditions Measured on a UH-60A in Maneuvering Flight," Journal of the American Helicopter Society, Vol. 43, (3), July 1998, pp.202-211.
3. Bousman, W. G. and Kufeld, R. M., "UH- 60A Airloads Catalogue". NASA/TM-2005-212827, AFDD/TR-05-003
4. Washuta, K. W. and Stocker, B. P., "Air-to- Air Combat Test (AACT II) Maneuvering Flight Loads for UH-60A and AUH-76 Helicopters," USAAVSCOM TR-86-D-1, April 1986.
5. Abhishek, A., Datta, A., and Chopra, I., "Prediction of UH-60A Structural Loads using Multibody Analysis and Swashplate Dynamics," American Helicopter Society 62nd Annual Forum Proceedings, Phoenix, AZ, May 28-31, 2006.
6. Datta, A., and Chopra, I, "Validation of structural and aerodynamic modeling using UH-60A airloads program data," Journal of the American Helicopter Society, Vol. 51, (1), January, 2006, pp.43-58.
7. Ananthan, S., and Leishman, J. G., "Predictions of Transient Rotor Wake Aerodynamics in Response to Time-Dependant Blade Pitch Inputs," Journal of Aircraft, Vol. 42, (2), 2004.
8. Hodges, D. H., Patil, M. J., "Technical Note : Correlation of Geometrically-Exact Beam Theory with the Priceton Data," Journal of the American Helicopter Society, Vol. 49, No. 3, July 2004, pp 357- 360.
9. Hodges, D. H., and Dowell, E. H., "Nonlinear Equations of Motion for the Elastic Bending and Torsion of Twisted Nonuniform Rotor Blades," NASA TN D-7818, December 1974.
10. Ormiston, R. A., Hodges, D. H., and Peters, D. A., "On the Nonlinear Deformation Geometry of Euler- Bernoulli Beams," NASA Technical Paper 1566, 1980.
11. Shabana, A.A., Dynamics of Multibody Systems, Cambridge University Press, New York 1998
12. Amirouche, F.M.L., Computational Methods in Multibody Dynamics, Prentice-Hall Inc., New Jersey 1992
13. Du, H., and Ling, S.F., A Nonlinear Dynamics Model For Three-Dimensional Flexible Linkages, Computers and Structures, vol. 56. no 1 pp 15-23, 1995
14. Wasfy, T. M., and Noor, A.K., "Computational Strategies for Flexible Multibody Systems," Applied Mechanics Review, vol. 56, no 6, November 2003
15. Bauchau, O.A., Lee, M., "Multibody Formulation for Rotorcraft Dynamic Analysis," Proceedings of AHS 51st Fort Worth, Texas, May 9-11, 1995
16. Kvaternik, Raymond G., Kaza, Krishna R. V., Nonlinear Curvature Expressions for Combined Flapwise Bending, Chordwise Bending, Torsion, and Extension of Twisted Rotor Blades, NASA TM X-73, 997, 1976.
17. Saberi, H., Khoshlahjeh, M., Ormiston, R.A. and Rutkowski, M. J., "Overview of RCAS and Application to Advanced Rotorcraft Problems," American Helicopter Society 4th Decennial Specialists' Conference on Aeromechanics, San Francisco, CA, January 2004.
18. Hopkins, S.A., Ormiston, R.A., "An Examination of Selected Problems in Rotor Blade Structural Mechanics and Dynamics," Journal of the American Helicopter Society, Vol. 51, No. 1, Jan 2006, pp 104-119.
19. Cook, R.D., Malkus, D.S., and Plesha, M.E., Concepts and Applications of Finite Element Analysis, John Wiley & Sons Inc., New York 1989.
20. P. Masarati, G.L. Ghiringhelli, M. Lanz and P. Mantegazza, "Experiences of Multibody Multidisciplinary Rotorcraft Analysis," XVI Congresso Nazionale AIDAA, 24-28 September 2001, Palermo, Italy.
21. Stephen P. Timoshenko and Gere, J.M., Mechanics of Materials. D. Van Nostrand Company, New York 1972
22. Dowell, E.H., Traybar, J., and Hodges, D.H., "An Experimental-Theoretical Correlation Study of Non-Linear Bending and Torsion Deformations of a Cantilever Beam," Journal of Sound and Vibration, vol. 50, no 4, 1977, pp 533-544
23. Dowell, E.H., and Traybar, J., "An Experimental Study of the Nonlinear Stiffness of a Rotor Blade Undergoing Flap, Lag, and Twist Deformations" NASA CR 137968, January 1975; and NASA CR 137969, December 1975
24. Kufeld, R. M., and Johnson, W. "The Effects of Control System Stiffness Models on the Dynamic Stall Behavior of a Helicopter", Journal of the American Helicopter Society, Vol. 45, (4), 2000, pp. 263-269.
25. Carpenter, P. J., and Friedovich, B., "Effect of A Rapid Blade-Pitch Increase on the Thrust and Induced-Velocity Response of a Full-Scale Helicopter Rotor," NACA TN 3044, November, 1953.