自修复飞控系统设计研究

自修复飞控系统是现代飞控系统发展的必然趋势，定量反馈理论（ＱＦＴ－ＱｕａｎｔｉｔａｔｉｖｅＦｅｅｄｂａｃｋＴｈｅｏｒｙ）是一中新兴的鲁棒控制理论，本文介绍了用ＱＦＴ设计自修复飞控系统的基本思路和主要步骤，并用ＱＦＴ设计了国产某型歼击机的自修复飞控系统，仿真试验表明，该系统在多个飞行状态和多种故障模式下都达到了较好的控制效果。

Self-Repairing Flight Control System Design Research

Quantitative feedback theory (QFT)has achieved the status as a powerful design technique for the achievement of assigned performance requirement over specified ranges of plant uncertainties without or with control input failures.QFT is found to be very effective in designing robust flight control system despite large uncertainties arising from plant parameter variation and/or control surface failures. This paper applies QFT to design of a self-repairing flight control system.The application is to a fighter aircraft with two outputs and four inputs.Performance tolerances are assigned over four flight conditions and three control input failure cases.Digital simulation illustrates that QFT design can accommodate all these failure cases without failure identification.