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多故障的直接自修复控制

The Direct Self-repairing Flight Control for Multiple Faults

【作者】 葛铁

【导师】 王永;

【作者基本信息】 南京航空航天大学 , 控制理论与控制工程, 2002, 硕士

【摘要】 飞行自修复控制(Flight Self-Repairing Control)最早是美国NASA于1982年提出的,我国在1993年开始进行这方面的研究。直接自修复控制是文在1999年提出的基本方法,它抛弃了传统自修复系统的固定时序,修复作用在故障发生时就立即开始,而无须先辨识故障模式。这样就避免了传统的自修复控制方法所伴随的修复时间长、修复过程控制品质差、修复能力较低等方面的不足,从而成为飞行自修复控制中一个极有前途和生命力的研究方向。 本文在文的研究基础上,对直接自修复理论进行了丰富和发展:主要研究了文提出的直接自修复律在多个故障同时发生或相继发生时的修复作用;研究了直接自修复律的参数选取问题;同时,对飞机模型方程的线性化、浮松故障的建模问题作了一些理论分析。 本文从理论上严格证明了直接自修复律对大多数双故障能实现有效的修复。最后的仿真结果也支持了本文的结论。

【Abstract】 The notion of Flight Self-Repairing Control was firstly brought forward by NASA in 1982. Our country began such research in!993. Direct Self-Repairing Control is a basic method proposed by paper [33] in 1999, which absent the time sequence of traditional repairing system , the repairing action would play its role at the moment the fault occurs without knowing failure modeling in advance. Thus the deficiencies accompanying the traditional self-repairing control law are avoided, which are long repairing time, bad control quality and low repairing ability. Consequently, the method becomes a very potential and spirited researching aspect.This article is based on paper [33]. It is the enrichment and development of Direct Self-Repairing theory. It mainly discusses the repairing action of direct self-repairing law brought forward in paper [33] for multiple failures occurring at the same time or in sequence. The problem of parameter selection in direct self-repairing law is also discussed. Then, the author do some theory analysis of the linearization problem of aircraft model equation and the modeling problem of buoy failure.From the view of theory , this paper strictly proves the effectivity of direct self-repairing law for most double faults. At last, the simulation results also support the conclusions in this article.

  • 【分类号】TP273.5
  • 【被引频次】4
  • 【下载频次】317
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