Flight dynamic mathematical model of tiltrotor aircraft

This paper summarized the status of the research and development of the tilt rotor aircraft firstly.Then,the flight dynamics model of the tilt rotor aircraft was established based on the research to the aerodynamic of the rotor and wing.Unsteady element theory was used to analyze the lift,drag,and moment of the rotor.The lift line theory was used to research the aerodynamics of the wing,fuselage,horizontal and vertical tails.The aerodynamic interference was considered.At last,the model was verified by the results of the trimming calculation in the helicopter mode and airplane mode.