Technical note exploratory investigation of time-finite-element and fast-Floquet methods for trim and stability analysis

Journal of the American Helicopter Society

Volumn 50, Issue 2, 2005, Pages 206-210

  Lee, Donghoon ^a   Hodges, Dewey H ^a  

^a GEORGIA INSTITUTE OF TECHNOLOGY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

FINITE ELEMENT METHOD; LINEARIZATION; MATHEMATICAL MODELS; PERTURBATION TECHNIQUES; WIND TURBINES;

FAST FLOQUET METHOD; FLOQUET TRANSITION MATRIX; TIME FINITE ELEMENT METHOD;

AERODYNAMICS;

EID: 19344366507     PISSN: 00028711     EISSN: None     Source Type: Journal    
DOI: 10.4050/1.3092856     Document Type: Article

References (8)

1. Kirksey, J. D., "Improvement of Harmonic Balance Solution Routines for Nonlinear Systems," M.S. Thesis, Georgia Institute of Technology, Atlanta, GA, 1988.
2. Friedmann, P., "Rotary-Wing Aeroelasticity with Application to VTOL Vehicles," AIAA-90-1115, Proceedings of the 31st Structures, Structural Dynamics and Materials Conference, Long Beach, CA, April 2-4, 1990, pp. 1624-1670.
3. Borri, M., "Helicopter Rotor Dynamics by Finite Element Time Approximation," Computers and Mathematics with Applications, Vol. 12A, (1), January 1986, pp. 149-160.
4. Peters, D. A., "Fast Floquet Theory and Trim for Multi-Bladed Rotorcraft," Journal of the American Helicopter Society, Vol. 39, (4), October 1994, pp. 82-89.
5. Lee, D., Hodges, D. H., and Patil, M. J., "Multi-Flexible-Body Dynamic Analysis of Horizontal-Axis Wind Turbines," Wind Energy, Vol. 5, (4), October/December 2002, pp. 281-300.
6. Kane, T. R., and Levinson, D. A., Dynamics: Theory and Applications, McGraw-Hill, New York, 1985, Chapter 6.
7. Hodges, D. H., "A Mixed Variational Formulation Based on Exact Intrinsic Equations for Dynamics of Moving Beams," International Journal of Solids and Structures, Vol. 26, (11), 1990, pp. 1253-1273.
8. Lee, D., and Hodges, D. H., "Multi-Flexible-Body Analysis for Application to Wind Turbine Control Design," Subcontractor Report SR-500-35228, National Renewable Energy Laboratory, Golden, CO, September 2004.