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Aeroelastic Response of an Airfoil-Flap System Exposed to Time-Dependent Disturbances  

Shim, Jae-Hong (Department of Control and Measurement Engineering Korea Polytechnic University)
Sungsoo Na (Department of Mechanical Engineering, Korea University)
Chung, Chan-Hun (Department of Mechanical Engineering, Korea University)
Publication Information
Journal of Mechanical Science and Technology / v.18, no.4, 2004 , pp. 560-572 More about this Journal
Abstract
Aeroelastic response and control of airfoil-flap system exposed to sonic-boom, blast and gust loads in an incompressible subsonic flowfield are addressed. Analytical analysis and pertinent numerical simulations of the aeroelastic response of 3-DOF airfoil featuring plunging-pitching-flapping coupled motion subjected to gust and explosive pressures in terms of important characteristic parameters specifying configuration envelope are presented. The comparisons of uncontrolled aeroelastic response with controlled one of the wing obtained by feedback control methodology are supplied, which is implemented through the flap torque to suppress the flutter instability and enhance the subcritical aeroelastic response to time-dependent excitations.
Keywords
Aeroelastic Response; Blast Load; Sonic-Boom; Flap; LQG;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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