论文部分内容阅读
针对当前运输机空投货物模型可拓展性不强的问题,提出了分离体的建模方法。在无需分析货物与飞机整体质心变化的情况下,分别以货物和飞机为对象进行受力分析,推导了货物与飞机之间的相互作用力,建立了更加贴近实际的运输机单件货物空投和连续空投的动力学模型。最后,通过数值仿真,分析了飞行速度和牵引伞牵引比对空投任务性能的影响。结果表明,飞行速度和牵引比越大,飞机在货物干扰作用下的状态变化量越小。
In view of the problem that the current air cargo model of transport aircraft is not scalable, this paper proposes a method of modeling a separate body. Under the condition of not needing to analyze the change of the whole center of mass between the cargo and the aircraft, the force analysis is carried out on the cargoes and aircraft respectively, the interaction force between the cargoes and the aircraft is deduced, and a more realistic transport aircraft single- Dynamic model of airdrop. Finally, through numerical simulation, the influence of flight speed and towing ratio on the performance of the airdrop mission is analyzed. The results show that the larger the flight speed and traction ratio, the smaller the aircraft state changes under cargo interference.