ティルトロータ型UAVにおける低速飛行特性の解析

抄録

In this paper, we examine low-speed flight characteristics of a tilt-rotor UAV by estimating the aerodynamic coefficients based on the results of flight experiments and CFD analysis. The longitudinal motion in the rotary-wing mode of the vehicle is modeled by using the aerodynamic forces that have a component proportional to the airspeed. The experimental results show that the component is especially useful for representing the drag force acting on the vehicle in the rotary-wing mode. Although the aerodynamic forces obtained from the experimental data are quite noisy, the magnitude of the forces is consistent with the results of CFD analysis.