Abstract
The buffeting phenomenon can lead to long-term damage in aeroelastic bodies due to fatigue. It can also restrict the maneuverability of aircrafts. In this work, the buffeting problem of the twin-tails of a fighter aircraft is tackled. A nonlinear model of the twin-tails is utilized, and the buffeting load is simulated using a wind disturbance model that combines discrete wind gust and Von-Karman wind turbulence. An integral sliding mode controller is developed to suppress the vibrations of the twin-tails. Simulation studies demonstrate the effectiveness of the sliding mode controller at suppressing the vibrations the twin-tails.
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