摘要
本文根据PIO问题研究的需要,考虑到CAS系统对PIO问题影响的严重性,推导了包括CAS系统在内的驾驶员-操纵系统-CAS系统-飞机本体组合系统的纵向动态结构图。并以某飞机两个飞行状态为例在IBM-PC/XT数字计算机上,进行了数字仿真计算。计算结果同《瑞典作战飞机的飞行品质规范》中关于PIO问题要求检查计算的结果是一致的.从而初步说明本文所介绍的PIO问题的数字解研究方法是可信的,也是具有实际分析使用价值的.
In order to meet the needs for studying PIO (Pilot Induced Oscillation) and take serious influence of CAS (Control Augmentation System) on PIO into account, a dynamic structure diagram in longitudinal motion of pilot-control CAS airframe with CAS have been derived,and a new method which further approaches to the actual case has been provided for studying PIO problem in this paper. Moreover computations have been carried out on an IBM PC/XT digital computer for two flying cases as examples,for amilitary airplane.lt is obvious that the results coincide with the inspect computations about PIO in 《Sweden Specification Flying Qualities of Military Airplanes》 .Thereby it is proved preliminarily that the computation method and studying method about PIO problem for this paper proposed are not only reliable, but also of value in practical analysis and use.
出处
《飞行力学》
CSCD
北大核心
1989年第3期52-59,共8页
Flight Dynamics
