28th Congress of the International Council of the Aeronautical Sciences, 23 - 28 September 2012, Brisbane, Australia
Paper ICAS 2012-11.5.3

AEROELASTIC ANALYSIS FOR HELICOPTER ROTOR BLADES IN HOVER AND FORWARD FLIGHTS

I. Lee, M. -S. Jeong, S. -J. Yoo*
KAIST, Korea; *Hyundai Heavy Industries, Co., Ltd., Korea

Keywords: aeroelasticity, freewake,helicopter, hover, forward flight

The helicopter is subjected to a severe vibratory environment due to the unsteady wakes in hovering and forward flight. For this reason, aeroelastic analysis that predicts the vibratory stability of rotor blades is important in of helicopter research. Therefore, aeroelastic stability analyses of rotor blades were conducted using free-wake method.

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