24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-5.10.3

POSSIBLE DECREMENT OF LCO FLUTTER DYNAMIC PRESSURE DUE TO ROBUST CONTROLLER

H. Matsushita, T. Miyata*, A. Fujimori**
University of Fukui; *Riken Sangyo; **Shizuoka University, Japan

Keywords: transonic flutter, robust control, LCO, subcritical Hopf bifurcation

Transonic flutter often occurring as limit cycle oscillation is subcritical Hopf bifurcation type, which means that flutter may occur at lower dynamic pres-sure than the nominal flutter by more than 10%. Furthermore this paper points out the possibility that the robust controller may bring about decrement of flutter dynamic pressure.

view full paper