Design of a Tilt-Rotor Vertical Takeoff and Landing Fixed-Wing UAV

To meet the requirements of rapid response and flexible operation in fields such as emergency rescue and logistics transportation, a novel tilt-rotor vertical takeoff and landing (VTOL) fixed-wing UAV is designed. It features a streamlined fuselage and double-convex trapezoidal main wings, and a hybrid design integrating tilt quad-rotors with fixed wings, enabling excellent vertical takeoff and landing as well as horizontal flight performance. The combined design of the front two tilt rotors and the rear two fixed rotors enhances the stability of the UAV, solves the problems of nose-up and yaw during the tilting moment, and reduces the risk of loss of control. The landing gear is designed as a carbon fiber four-legged type, which not only reduces the weight but also improves the shock resistance, adapting to various takeoff and landing conditions. Through bionic design, inspired by the form of locusts, it has significant advantages in takeoff and landing performance and stability, especially suitable for takeoff and landing requirements in complex terrains. Lithium batteries are used as the power source to ensure light weight and high efficiency. The YOLOv8 algorithm is adopted for real-time target recognition, which can quickly identify disaster-stricken areas and trapped people in complex environments and improve the rescue efficiency. The flight test results show that the UAV has high lift and stability during the flight, with excellent maximum load capacity and endurance. The UAV can greatly improve the efficiency in emergency rescue and material transportation, conforms to the development trend of modern UAVs towards automation and intelligence, and demonstrates broad applicability and high efficiency in various future application scenarios.