Abstract:

Accidents usually happen during aircraft carrier approaches and landings, most of which are due to poor control of aircraft vertical track. Therefore, aimed at the nonlinear dynamics model of the aircraft and considering the influence of airwake disturbance during the landing process, a sliding mode control system based on the nonlinear dynamic inversion algorithm is proposed for the design of three control loops in the longitudinal carrier landing system, to solve the problem of precise control of flight path, and it is tested for the ability of trajectory adjustment. Simulation results show that the designed system has strong robustness and rapidly tracking capability, improves the accuracy of landing flight path, reduces the glide slope error, and meets the U.S. Navy security landing requirements.