重装空投过程的模拟器仿真试验

Heavy-Weight Airdrop Simulation Experiment Using Flight Simulator

采用分离体的建模方法,建立了重装空投过程的飞机、货物耦合运动模型,在此基础上,以某型运输机地面飞行模拟器为平台,开发了重装空投模拟器仿真试验系统,进行了牵引系统失效及货物卡滞的特情仿真试验。结果表明,货物质量越大、发生卡滞的位置与飞机质心距离越远,对安全性威胁越大,牵引伞失效会使货物对飞机的扰动时间变长,增加操纵难度。所得结论对重装空投过程飞行员操纵及飞行控制系统研发,具有一定的参考价值。

The plane-cargo dynamic model of the heavyweight airdrop operations is established using separation method. On this basis,the model is applied to a transport plane simulator and a flight simulator of the heavy-weight airdrop operations is developed. A number of simulation scenarios are conducted including extraction down and cargo stagnation. It can be concluded that the greater of the cargo quality and the farther of the distance between the lag position and the center of mass of the aircraft are,the greater of threat to the aircraft safety is;the failure of the extraction umbrella will make the disturbance time of the cargo to the aircraft longer and this will further increase the difficulty of operations. The achievements are meaningful for pilot operations and flight control system development of the heavyweight airdrop process.