摘要
本文根据试飞员的飞行体会和一组试飞曲线,提出驾驶员参数随着着陆过程变化的频率域模型,建立装有DFBW飞机的人-机闭环系统数学模型,编制非线性全量时域仿真程序,对纵向着陆过程动态作了全面的定量分析,其结果与装有MCS飞机的试飞情况吻合,验证了本文建模、程序可信度和精度,从而得出某DFBW飞机着陆特性是可被驾驶员接受的一些有益结论。
According to flight test data and pilot flying experience, a frequency domain pilot model is developed with its parameters varying through the approach and landing task. The DFBWaircraft closed-loop pilot / vehicle model is formulated in this paper. The nonlinear time domain computer numerical simulation gives a quantitative analysis of aircraft longitudinal landing dynamic characteristics. The simulation result agrees well with the flight test of MCS aircraft. Thus the accuracy of both mathematical models and simulation computer programs is validated. Many beneficial results are obtained which show that the landing dynamics of some types of DFBW aircraft are acceptable.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1992年第2期B103-B106,共4页
Acta Aeronautica et Astronautica Sinica
关键词
人机闭环系统
数字电传
操纵系统
Closed-loop pilot vehicle system , Digital fly-by-wire control sysytem. Pilot model
