Determination of Load Distributions on Main Helicopter Rotor Blades and Strength Analysis of Its Structural Components
Publication: Journal of Aerospace Engineering
Volume 27, Issue 6
Abstract
To define load spectra of main rotor blades in this study computational fluid dynamics (CFD) software is used. The aim of the present investigation is the development of a CFD computation procedure capable of accurately simulating the flow around a full helicopter especially around main rotor blades. For this purpose the complete helicopter configuration including fuselage, main rotor and tail rotor computer-aided design (CAD) models are used in CFD modeling and determination of loads. Primary attention in this investigation is focused on defining loads of main rotor blades because metal trailing edge segments of these blades were replaced with a new segments made from honeycomb composite materials. As critical structural parts with respects to strength here are glued joints between metal and composite segments of trailing edge are considered. For precise stress analysis of these segments, including glued joints, the finite element method is used.
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Acknowledgments
This work was partially financially supported by the Ministry of Science and Technological Developments of Serbia under Projects OI-174001 and TR-34028.
References
Akgül, A., et al. (2012). “Numerical investigation of NASA tandem control missile and experimental comparison.” Sci. Tech. Rev., 62(1), 3–9.
ANSYS Fluent [Computer software]. ANSYS FLUENT 12.0 Users Guide, ANSYS Inc.
Arcidiacono, P. J., and Sopher, R. (1982). “Review of rotor loads prediction methods.” Agard Conf. Proc., Vol. 334.
Volodko, A. M. (1984). “Transport.” Basics of flight operation 330 helicopters, Moscow.
Bramwell, A. R. S. (1976). Helicopter dynamics, Edward Arnold, London.
Chung, T. J. (2002). Computational fluid dynamic, Cambridge University Press, Cambridge.
Hariharam, N., Sankar, L. N., Russel, J., and Chen, P. (1996). “Numerical simulation of the fuselage—Rotor interaction phenomenon.” 34th Aerospace Sciences Meeting and Exhibit, AIAA, Reno, NV.
Johnson, W. (1989). “Development of a comprehensive analysis for rotor craft: Aircraft model solution procedure and application.” Vertica, 5, 185–216.
Maksimovic, S. (2007). “Post-buckling and failure analysis of axially compressed composite panels using FEM.” Sci. Tech. Rev., 57(3–4), 43–48.
Maksimovic, S., Kozic, M., Maksimovic, K., Georgijevic, D., and Ognjanovic, O. (2011). “Definition of load spectra using CFD method and fatigue life estimation of helicopter tail rotor blades.” 4th Int. Scientific Conf. on Defensive Technologies, OTEH 2011, Belgrade, Serbia.
MSC/NASTRAN [Computer software]. Newport Beach, CA, MSC Software.
Nam, H., Park, Y., and Kwon, O. (2006). “Simulation of unsteady rotor-fuselage aerodynamic interaction using unstructured adaptive meshes.” J. Am. Helicopter Soc., 51(2), 141–148.
Ormiston, R. A. (1974). “Comparison of several methods for predicting loads on a hypothetical helicopter rotor.” J. Am. Helicopter Soc., 4(19), S6–S24.
Pape, A. L., Gatard, J., and Monnier, J. C. (2007). “Experimental investigations of rotor-fuselage aerodynamic interaction.” J. Am. Helicopter Soc., 52(2), 99–109.
Park, Y. M., and Kwon, O. J. (2004). “Simulation of unsteady rotor flow field using unstructured adaptive sliding meshes.” J. Am. Helicopter Soc., 49(4), 391–400.
Renaud, T., Benoit, C., Boniface, J. C., and Gardarein, P. (2003). “Navier-Stokes computations of a complete helicopter configuration accounting for main and tail rotor effects.” 29th European Rotorcraft Forum, Friedrichshafen, Germany.
“Specialist Meeting on Helicopter Rotor Loads Prediction Methods.” (1973). 36th Meeting of the Structures and Materials Panel, North Atlantic Treaty Organization.
Steijl, R., and Barakos, G. N. (2009). “Computational study of helicopter rotor-fuselage aerodynamic interactions.” AIAA J., 47(9), 2143–2157.
Steijl, R., and Barakos, G. N. (2012). “CFD analysis of complete helicopter configurations- Lessons learnt from the GOAHEAD project.” Aerosp. Sci. Technol., 19(1), 58–71.
Stievenard, G. (1983). Mission spectra, AGARD—AG—292, helicopter fatigue design guide, France.
Vasovic, I., Maksimovic, M., Puharic, M., Matic, D., and Linic, S. (2011). “Structural analysis of aerodynamic brakes in high-speed trains.” Sci. Tech. Rev., 61(2), 10–15.
Yen, J. G., and Glass, M. (1980). “Helicopter rotor load predictions.” Specialist Meeting on Fatigue Methodology, St. Louis.
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Published In
Journal of Aerospace Engineering
Volume 27 • Issue 6 • November 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: May 3, 2012
Accepted: Nov 20, 2012
Published online: Nov 23, 2012
Discussion open until: Oct 19, 2014
Published in print: Nov 1, 2014
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