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首页> 外文期刊>Aeronautical journal >Simulation of automatic helicopter deck landings using nature inspired flight control
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Simulation of automatic helicopter deck landings using nature inspired flight control

机译：利用自然启发的飞行控制模拟直升机自动甲板降落

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Research studies have indicated that the optical flow parameter, time to close tau, is the basis of purposeful control in the animal world, and used by both fixed wing and helicopter pilots during manoeuvring. This parameter is defined as the instantaneous time to close a gap (spatial or force) at the current closing rate. A novel automatic flight control strategy has been developed that makes use of optical flow theory and in particular, the parameter tau. This strategy has been applied to two distinct problems; (1) the landing of a helicopter on a ship and (2) the lateral repositioning of a helicopter. The first is a challenging case because the landing of a helicopter on a ship is one of the most dangerous of all helicopter flight operations. Furthermore, helicopters are often subject to torque oscillations during rapid collective control, which increases pilot workload significantly when operating with low power margins and/or whilst performing tasks that require accurate heave control. The second case demonstrates the generality of the technique. Both automatic manoeuvres were simulated successfully within desired limits, with the novel control strategy creating a 'natural', smooth, tau motion.
机译：研究表明，光流参数tau的闭合时间是动物世界中有目的控制的基础，在操纵过程中固定翼和直升机飞行员都会使用它。此参数定义为以当前闭合率闭合间隙（空间或力）的瞬时时间。已经开发了一种新颖的自动飞行控制策略，该策略利用了光流理论，尤其是参数tau。此策略已应用于两个不同的问题； （1）直升机在船上的着陆以及（2）直升机的侧向重新定位。首先是一个具有挑战性的案例，因为将直升机降落在船上是所有直升机飞行操作中最危险的事件之一。此外，直升机在快速集体控制期间经常遭受扭矩振荡，这在以低功率裕度运行和/或执行需要精确升沉控制的任务时会大大增加飞行员的工作量。第二种情况说明了该技术的普遍性。两种自动操纵都在理想的极限内成功进行了仿真，新颖的控制策略创造了“自然”的，平滑的tau运动。

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