Design and Kinematic Analysis of Proposed Adaptive Landing Gear for Multirotor UAV

One of the weaknesses multi-rotor unmanned aerial vehicles (UAVs) or vertical take-off and landing aircraft is that they need a flat surface to make safe landing. In order reduce impact this weakness, it inevitable add systems will give UAV some additional capabilities related capability. study, four-arm adaptive gear designed kinematically analyzed for UAV. The adaptability feature achieved by positioning arm ends relative uneven ground automatically changing angles revolute joints so vehicle can land safely on ground. joint gear, which consists four robotic arms, each with two joints, are changed controller depending distance information received from ultrasonic sensor. This evaluated in according determined algorithm required angle values determined. Within scope scaled was an eight-rotor whose mathematical model also obtained. According proposed arms limbs, length 200 mm, maximum inclination calculated as 44.5°. addition, motion trajectory end point arm, part contact ground, obtained simulation performed.