Wake Effects of Free-Wake Model on Aeroelastic Behavior of Hovering Rotors

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The wake effects on aeroelastic deflections and aerodynamics for the isotropic and composite rotor blades have been investigated. To take into account the large deflections and rotations of rotor blades, a large-deflection beam model was used. A free-wake model based on vortex-lattice method was used to obtain the aerodynamic forces while considering wake effects. Newton-Raphson iteration method was applied to the aeroelastic analysis to obtain the numerical solutions. The flap, lag, and torsion deflections considering wake effects by using the free-wake model were investigated and compared with the results using two-dimensional quasi-steady model. Finally, aerodynamic changes after aeroelastic deflections were investigated.
Publisher
AMER INST AERONAUT ASTRONAUT
Issue Date
2011-07
Language
English
Article Type
Article
Keywords

UNSTEADY AERODYNAMICS; BEAM THEORY; BLADE; STABILITY

Citation

JOURNAL OF AIRCRAFT, v.48, no.4, pp.1184 - 1192

ISSN
0021-8669
URI
http://hdl.handle.net/10203/95002
Appears in Collection
AE-Journal Papers(저널논문)
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