Aiming at the longitudinal control problem of the transition section of tilt rotor UAV,taking a tilt rotor UAV as the research object,summarizs the development trend of tilt rotor UAV in China.The six degree of freedom rigid body model of the tilt rotor UAV is established by Rotorlib software.The control surface control allocation strategy for the transition section is designed by analyzing the characteristics of the transition section in the frequency domain and time domain.Due to the severe coupling of tilt rotor in the total distance control channel during the transition,a cosine allocation strategy is proposed to solve the coupling problem.Simulation results verify that the proposed strategy significantly improves the total distance control channe and coupling.
tilt rotor UAVsix degree of freedom rigid body modeltransition control strategycosine allocation