小型クアッドロータ機のロータ軸間距離と地面効果の関係の検証

抄録

Small multirotor unmanned aerial vehicles (UAVs) are convenient for multiple applications because they can hover and vertically take off and land. However, their posture in landing motion is unstable because of ground effect. However, ground effect on small quadrotor UAVs has been unclear compared to that of an isolated rotor. To examine the ground effect on small quadrotor UAVs, we measured thrust of a UAV model changing height from ground. In our experiment, we confirmed that thrust of the UAV was affected by ground effect at height below three times of the rotor radius. Moreover, we verified that diagonal rotor axis length changed thrust and hover efficiency in ground effect.