机动襟翼对纵向PIO的影响

机动襟翼在我国是一项刚被采用的新技术，而驾驶员诱发振荡是严重威胁飞行安全并一直困扰航空界的一大难题，主要通过对机动襟翼调节规律的分析，建立包括机动襟翼在向的人－机闭环系统数学模型，从而计算了分析机动襟翼对纵向驾驶员诱发振荡的影响，并以某机为例，对该机机动襟翼整个工作范围内的各飞行状态，有无机动襟翼两种情况下的ＰＩＯ进行了仿真计算。结果表明，机动襟翼设计合理，对ＰＩＯ影响不大。

Effect of Combat Flap on Longitudinal PIO

The combat flap used in our country is a new technology. Pilot induced oscillation(PIO), which severely threaten the safe of flight and has been troubling the professionals in the aeronautic field,is a very complicated problem. Firstly,this paper analyzes the regulating rule of the combat flap. Secondly,the mathmatics module with Pilot vehicle closed-loop composed system is founded. At last, the effect of the combat flap on PIO is calculated and analyzed. And a aircraft is taken as example, the mathematical simulation for PIO of two situation with combat flap or without is given, which is carried out on various flight condition throughout range of combat flap work.The results shown that design of combat flap is suitable and the effect of combat flap on PIO is smaller.