DOC《中图分类号：V448.22》

s safety and reliability. Under the funding support of the project Research on the Fast Fault Diagnosis Methods based on the Qualitative/Quantitative Hybrid Model of national laboratory of space intelligent control of China Academy of Space Technology, the fault diagnosis method based on the qualitative/quantitative hybrid model is studied for the research object-spacecraft attitude control system. The work carried out is as follows. The course of development of spacecraft fault diagnosis is reviewed and all kinds of qualitative and quantitative methods used for the spacecraft fault diagnosis and some work which have being developed on the qualitative/quantitative hybrid diagnosis are summarized. All kinds of fault modes including the qualitative and quantitative analysis for the sensors and actuators and the mechanism of fault coming and dissemination are researched. The qualitative/quantitative modeling method of spacecraft control system is studied. Based on the classification for fault information and the analysis for the complementary and conversion relationship between the qualitative and quantitative knowledge, the qualitative/quantitative description for the fault information of spacecraft control system which achieving the awareness and understanding for the qualitative/quantitative hybrid knowledge model of spacecrafts. The new combination mechanism of qualitative/quantitative knowledge and the qualitative/quantitative modeling method are proposed based on the fuzzy logic. And the qualitative /quantitative hybrid model of fault information of spacecraft control system is achieved. The fault diagnosis method based on the qualitative/quantitative hybrid model is studied. Based on the qualitative/quantitative hybrid modeling of spacecraft control system, the fault diagnosis system frame is given. And the fault diagnosis for the spacecraft control system is implemented by using the qualitative simulation (QSIM) and parity space combination method and the knowledge reasoning and parity space combination method and simulation experiments show that the method is efficient and feasible. Finally, the unified dealing method for the results of fault diagnosis is achieved with the introduction of pheromones. Key words: spacecraft control system, fault diagnosis, qualitative /quantitative hybrid model, qualitative simulation, knowledge reasoning, parity space 目录

第一章 绪论

1 1.1 论文选题意义

1 1.2 国内外研究现状

2 1.3 论文的主要工作

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第二章 故障产生机理及故障征兆传播机理研究

11 2.1 引言

11 2.2 航天器控制系统故障模式分析

11 2.2.1 控制系统故障的类型

11 2.2.2 敏感器故障模式分析

12 2.2.3 执行器故障模式分析

13 2.3 航天器控制系统故障产生机理研究

14 2.4 航天器控制系统故障征兆传播机理研究

16 2.5 本章小结

20

第三章 航天器控制系统故障诊断的定性定量混合模型研究

21 3.1 引言

21 3.2 航天器控制系统故障信息的定性/定量描述方法研究

21 3.2.1故障信息的分类规划

21 3.2.2定性/定量的互补转化关系

22 3.2.3航天器控制系统故障信息的定性/定量描述

22 3.3 基于模糊逻辑的定性/定量相结合的新机制研究

24 3.3.1 模糊逻辑

24 3.3.2 定性/定量相结合的新机制

25 3.4 航天器控制系统故障诊断的定性定量混合模型研究

26 3.4.1航天器控制系统组成

26 3.4.2航天器姿态动力学方程

28 3.4.3零动量反作用轮的三轴姿态控制律