系统输入幅值对增稳系统特性影响研究  

Research on Amplitude of System Input Impact of Control Augmentation System Characteristic

作　　者：刘瑜[1] 刘钰 王海维 

机构地区：[1]中国飞行试验研究院飞机所,西安710089 [2]中航第一飞机设计研究院综合航电研究所,西安710089 [3]西飞集团公司技术中心,西安710089

出　　处：《科学技术与工程》2012年第20期5117-5120,共4页Science Technology and Engineering

摘　　要：陈述了增稳系统和控制增稳系统由于系统本身对操纵权限的局限性,限制了系统操纵输入幅值的大小,很难在整个飞行包线内改善飞机的飞行品质,对飞机性能的提高很有限。以某型飞机为例,通过仿真验证了该结论。仿真结果表明,系统输入幅值在不超过临界饱和值时,增稳系统能够起到增稳作用;否则,增稳系统的增稳效能将随着饱和程度的增强逐渐消失。最后,提出了电传飞行控制系统全时间、全权限的特点,完全克服了增稳系统和控制增稳系统由于操作权限限制的致命弊端,可替代它们在整个飞行包线内更好地改善飞机的飞行品质。Proposed the stability augmentation system （SAS） and control augmentation system （CAS） had the limitation in control authority due to the systems＇ own characteristics l the amplitude of the systems＇ control input was limited. The flight qualities of the aircraft were very difficult to be improved throughout the entire flight envel- op, improvement of the aircraft performance was limited. The conclusion was verified by simulation in the example with a certain type of the aircraft. The simulating results show that the stability augmentation pole could be played when the critical saturation value was not exceeded by amplitude of control input. Otherwise, the efficacy of the SAS would be gradually weaken until to be disappear with the saturation level being strengthened. Finally, pro- posed the malpractice of the SAS and CAS could be overcame by the fly-by-wire control system due to its character- istics of full time and full authority, could be replaced to improve the flight qualities of the aircraft throughout the flight envelop.

关 键 词：增稳系统 控制增稳系统 操纵权限 电传操纵系统 全权限 

分 类 号：V249.12[航空宇航科学与技术—飞行器设计]