圆形降落伞最快下降系统设计

Design of fastest descent system for circular parachute

为确保配有圆形降落伞的物体在空中定点下落时实现以最短时间安全落地,提出了一种降落伞在空中多次打开和关闭的下降方法,降落伞每次打开或者关闭都由控制系统控制;同时设计出了适合圆形降落伞空中多次打开关闭的开关伞机械结构。在控制系统中,算法可以根据物体即将下落时的高度、圆形降落伞可承受的最大下落速度、圆形降落伞下落的安全速度,计算出物体需要打开或者关闭圆形降落伞的时间点,控制系统可以使圆形降落伞定时打开或者关闭。通过仿真得出了下落高度和下落速度情况,结果表明,所提方法可以确保配有圆形降落伞的物体在最短时间内安全着落。

In order to make the object with a round parachute fall safely in the shortest time,a method of multiple opening and closing parachutes in the air is proposed,each opening or closing of the parachute is controlled by the control system,and the mechanical structure suitable for multiple opening and closing of the round parachute in the air is designed.The algorithm in the control system can calculate the point at which an object needs to open or close a circular parachute,based on the height of the object when it is about to fall,the maximum falling speed that the circular parachute can bear and the safe falling speed of the circular parachute,the control system allows the round parachute to be timed to open or close.The simulation results show that the proposed method can make the object with circular parachute fall safely in the shortest time.