Green regional aircraft gust response

This contribution deals with gust load alleviation due to control surfaces deflection time laws. In the framework of the JTI-GRA European project (Green Regional Aircraft), high-fidelity fluid-structure coupling numerical simulations have been performed in order to predict the GTF NLF aircraft gust response (Gear Turbo Fan - Non Laminar Flow). The ZFW (Zero Fuel Weight) configuration of the GTF aircraft at Mach 0.48 and sea level has been handled and two one peak (1-cos) gusts have been considered. Control laws of the control surface have been provided by Alenia. Significant load alleviation has been observed for both gust wavelengths when applying the aileron deflection laws.