摘要
一、引言 多模态飞行控制系统需要解决的特殊课题,一是模态转换技术,使驾驶员根据任务需要由按钮任意切换模态;二是对模态转换时所引起的瞬变幅度进行有效地抑制,限制转换时的舵面跳变,从而抑制由此而引起的过载变化。特别是当转换前后的两模态不同步工作时,更应抑制瞬变过程,以避免余度系统监控算法的误切除。笔者在文献的基础上着重研究并提出了几种数字飞行控制系统模态转换瞬变抑制方法,经数模混合仿真表明,本文提出的这些方法是有效的。
To achieve a successful transition between flight control modes, the amplitude of transients must be suppressed into an allowed extent. This paper takes a digital multimode direct force flight control system as an example, presents several transients suppression methods. The results of the hybrid simulations have shown that the present methods are successful in transients suppression and the aircraft behavior during the transitional period is satisfactory.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1990年第1期A088-A092,共5页
Acta Aeronautica et Astronautica Sinica
关键词
飞行控制系统
模态转换
瞬变抑制
flight control, mode transition, transient supression,fade-over.
