飞机着陆下滑状态人-机系统动态特性分析

 采用最优控制驾驶员模型在频率域内分析是理论评价电传操纵飞机着陆下滑状态飞行品质的一种有效方法。基于人 -机系统响应特性可揭示出驾驶员工作负荷和系统动态特性之间相互影响。驾驶员相位补偿作为驾驶员工作负荷的度量 ;取人 -机系统闭环带宽、开环高频峰值和飞行轨迹倾角误差均方值等指标来评价系统动态特性。这些评价准则与驾驶员主观评分之间具有很好的相关性。应用该方法对某电传操纵飞机进行分析 ,其结果与飞行模拟评价结果较为一致

PILOT-AIRCRAFT SYSTEM ANALYSIS OF THE APPROACH AND LANDING TASK

Optimal control pilot modeling technique in frequency domain analysis is an effective methodology used to analytically evaluate the handling qualities of aircraft with fly by wire flight control systems in the approach and landing task. On the basis of pilot aircraft system response the interplay between pilot workload and system dynamics is exposed. The model based metric for pilot workload is the required pilot phase compensation. The closed loop bandwidth, high frequency open loop peak and steady state, root mean squared flight path error were recommended as the system performance measures. These criteria are well correlated with subjective pilot rating. When these techniques were applied to a fighter, the strong correlation was obtained between the analytical and simulation results.