Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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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)
  • Published : 2004.04.01
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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

References

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