Finite-time control of wing-rock motion for delta wing aircraft based on whale-optimization algorithm

Abstract

The rise of wing-rock motion in delta-wing aircraft has an adverse effect on the manoeuvrability of aircraft and it may result in its crash. This study presents a finite-time control design to tackle the dynamic of Wing-Rock motion in delta-wing aircraft. The design is based on Super Twisting Sliding Mode Control (STSMC) methodology. The Lyapunov stability analysis has been conducted to prove the asymptotic convergence of errors and to determine the finite time. The design of STSMC will lead to the appearance of design parameters, which have a direct effect on the dynamic performance of the controlled system. To avoid the conventional tuning of these parameters and to have an optimal performance of the proposed controller, a modern optimization technique has been proposed based on Wale Optimization Algorithm. A comparison study between optimal and non-optimal finite-time super twisting sliding mode controllers has been established and their effectiveness has been verified via numerical simulation using MATLAB programming format.