Comparison of calculated vibratory rotor hub loads with experimental data

Journal of the American Helicopter Society

Volumn 43, Issue 4, 1998, Pages 312-318

  Ganguli, Ranjan ^a,c   Chopra, Inderjit ^a   Weller, William H ^b  

^a UNIVERSITY OF MARYLAND   (United States)

^b UNITED TECHNOLOGIES RESEARCH CENTER   (United States)

^c PRATT AND WHITNEY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AERODYNAMIC LOADS; FINITE ELEMENT METHOD; MACHINE VIBRATIONS; MASS TRANSFER; MATHEMATICAL MODELS; STIFFNESS; UNSTEADY FLOW; WIND TUNNELS;

FORCE SUMMATION METHOD; ROTOR HUBS;

HELICOPTER ROTORS;

EID: 0032183573     PISSN: 00028711     EISSN: None     Source Type: Journal    
DOI: 10.4050/jahs.43.312     Document Type: Review

References (8)

1. Hansford, R.E., and Vorwald, J., "Dynamics Workshop on Rotor Vibratory Loads," Proceedings of the 52nd Annual Forum of the American Helicopter Society, Washington, D.C., Jun 4-6, 1996.
2. Davis, M. W., and Weller, W.H., "Application of Design Optimization Techniques to Rotor Dynamics Problems," Journal of the American Helicopter Society, Vol. 33, (3), Jul 1988.
3. Gunjit S. Bir, Chopra, I., Ganguli, R., et. al. University of Maryland Advanced Rotorcraft Code (UMARC), Theory Manual, Center for Rotorcraft Education and Research, University of Maryland, College Park, Jul 1994.
4. Weiler, W.H., and Davis, M.W., "Wind Tunnel Tests of Helicopter Blade Designs Optimized for Minimum Vibration," Journal of the American Helicopter Society, Vol. 34, (3), Jul 1989.
5. Weller, W.H., and Davis, M.W., "A Modal-Based Procedure for Efficiently Predicting Low Vibration Rotor Designs," Journal of the American Helicopter Society, Vol. 38, (1), Jan. 1993.
6. Bagai, A., Leishman, J. G., "Rotor Free-Wake Modeling Using a Pseudoimplicit Relaxation Algorithm," AIAA Journal of Aircraft, Vol. 32, (6), Nov-Dec 1995.
7. Srinivas, V, The UM Free Wake in UMARC, Report UM-AERO 95-26 University of Maryland, College Park, Maryland, 1995.
8. Leishman, J.G., and Beddoes, T.S., "Modeling of Subsonic Unsteady Aerodynamics for Rotary Wing Applications," Journal of the American Helicopter Society, Vol. 35, (1), Jan 1990.