大迎角纵向短周期飞行品质计算

Longitudinal Flying Qualities at High Angles of Attack

根据六种短周期飞行品质判据（ＣＡＰ或ω２ｓｐ／（ｎ／α），ζｓｐ，τθ；ωｓｐＴθ２，ζｓｐ，τθ；瞬时峰值比，上升时间，有效延迟；带宽和时间延迟；闭环Ｎｅａｌ－Ｓｍｉｔｈ准则；Ｇｉｂｓｏｎ时域响应准则），计算了某典型第三代战斗机在失速迎角前的纵向短周期飞行品质，并与国外有关地面模拟试验结果进行了比较。结果表明：失速迎角前的大迎角短周期飞行品质，仍然可以通过综合上述六种小迎角判据的计算结果进行评价，但原要求数值需作适当修正。

In this paper, flying qualities of a typical high maneuverability aircraft at high AOA before stall angle were checked according to the six short period criteria (CAP or ω 2 sp /(n/α), ζ sp ,τ θ;ω sp T θ2 ,ζ sp ,τ θ;Transient peak ratio, rise time, effective delay;Bandwidth, time delay;Neal Smith criterion;Time response criterion by Gibson), and then were compared with experimental data from ground based simulator.The results showed that the flying qualities at high AOA before stall can be rated by considering all the six criteria, which were obtained from the analysis at low AOA, but their requirement boundaries should be redesigned.