NASA Technical Reports Server (NASA) · 1973 · 23 citations · 0 references
Open access
EngineeringAerospace EngineeringSystems EngineeringAerodynamicsAircraft DesignFlight MechanicsAircraft ControlControl SystemsFlight SimulationRotor DynamicsRotorcraft AerodynamicsRotordynamicsAerodynamic ModelingAircraft Aerodynamic DesignAircraft Flight EquationsFlight Dynamics ModelingPilot ProgramsRotor AerodynamicsRotor Wake DynamicsRotor Wake Interaction
Tilt‑rotor simulation must capture rotor dynamics, wake–airframe interaction, and control‑drive systems, unlike conventional fixed‑wing models. The authors developed a real‑time flight‑simulation model for the Bell 301 tilt‑rotor research aircraft. The model, defined by a block‑diagram structure and subject to specified constraints, was built for real‑time simulation. The model supported aircraft design, pilot training, and proof‑of‑concept activities in the development program.
A mathematical model for real-time flight simulation of a tilt rotor research aircraft was developed. The mathematical model was used to support the aircraft design, pilot training, and proof-of-concept aspects of the development program. The structure of the mathematical model is indicated by a block diagram. The mathematical model differs from that for a conventional fixed wing aircraft principally in the added requirement to represent the dynamics and aerodynamics of the rotors, the interaction of the rotor wake with the airframe, and the rotor control and drive systems. The constraints imposed on the mathematical model are defined.