飞行汽车机翼折叠系统机构运动学分析

为延长飞行汽车的飞行时间及实现飞行汽车可以在空中飞行模式与陆地行驶模式下正常工作，在根据升力公式对飞行汽车机翼进行设计选型后，对机翼折叠、回收机构进行设计并基于复数矢量法建立机翼折叠、回收机构运动学模型，使用MATLAB分析计算了机构关键杆件的角位移、角速度、角加速度变化情况，并用Adams对机构进行运动仿真分析。分析结果表明：机翼折叠机构与回收机构的角位移、角速度、角加速度图像均未出现激增或骤降，机构结构设计合理，可实现平滑稳定运动，运动特性良好。其中，通过控制折叠机构驱动杆件由83.25°偏转至116.75°实现折叠外翼90°的偏转。通过控制回收机构驱动滑块位移516.6 mm实现机翼90°的展开。最终在30 s内完成机翼折叠及回收作业。

Kinematic analysis of flying car wing folding system mechanism

In order to extend the flight time of the flying car and realize the normal operation of the flying car in air flight mode and land driving mode, after the design and selection of the flying car wing according to the lift formula, the wing folding and recovery mechanism was designed and the kinematic model of the wing folding and recovery mechanism was established based on the complex vector method, and the angular displacement, angular velocity, and angular acceleration of the key rods of the mechanism were analyzed and calculated using MATLAB. The change of angular displacement, angular velocity, and angular acceleration of the key rods of the mechanism were analyzed by MATLAB, and the mechanism was simulated by Adams. The analysis results show that the angular displacement, angular velocity and angular acceleration of the folding and recovery mechanisms do not show any surge or plunge, and the structure of the mechanism is reasonably designed to achieve smooth and stable motion with good motion characteristics. Among them, the 90° deflection of the folded outer wing is achieved by controlling the deflection of the driving rod of the folding mechanism from 83.25° to 116.75°. By controlling the recovery mechanism to drive the slider displacement of 516.6 mm to achieve the 90° unfolding of the wing. Finally, the wing folding and recovery operation is completed within 30 s.