Aeroelastic response of an airfoil-flap system exposed to time-dependent disturbances

Jae Hone Shim, Songsoo Na, Chan Hun Chung

Research output: Contribution to journalArticle

5 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)560-572
Number of pages13
JournalKSME International Journal
Volume18
Issue number4
DOIs
Publication statusPublished - 2004 Apr

Keywords

  • Aeroelastic Response
  • Blast Load
  • Flap
  • LQG
  • Sonic-Boom

ASJC Scopus subject areas

  • Mechanical Engineering

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