Liquid Rocket Engine Fault Diagnosis Method Based on the Integration of Qualitative and Quantitative Knowledge

LIU Hong gang; WU Jian jun; CHEN Qi zhi

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Liquid Rocket Engine Fault Diagnosis Method Based on the Integration of Qualitative and Quantitative Knowledge

更新时间：2026-07-07

- Liquid Rocket Engine Fault Diagnosis Method Based on the Integration of Qualitative and Quantitative Knowledge
- Vol. 17, Issue 3, (2002)
- 作者机构：
  
  国防科技大学航天与材料工程学院,湖南,长沙,410073
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2002
- 稿件说明：
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LIU Hong gang, WU Jian jun, CHEN Qi zhi. Liquid Rocket Engine Fault Diagnosis Method Based on the Integration of Qualitative and Quantitative Knowledge[J]. 2002, 17(3).
DOI：

LIU Hong gang, WU Jian jun, CHEN Qi zhi. Liquid Rocket Engine Fault Diagnosis Method Based on the Integration of Qualitative and Quantitative Knowledge[J]. 2002, 17(3). DOI：

摘要

首先从知识表示和处理的角度对 SDG方法进行了简要的分析

然后根据液体火箭发动机系统的特点

提出了改进的途径

通过建立只包含发动机测量变量的 SDG

对故障模式进行初步诊断

然后对不能区分的故障模式采取加入适当定量信息的办法来进行进一步诊断

并对液体火箭发动机中出现的多故障模式建立了诊断方法。

Abstract

This paper first analyzes the SDG method with a view of knowledge description and management

then presents an improved way according to the characteristics of the liquid rocket engine systems.That is

by constructing the SDG containing only the measured variables

the fault modes are diagnosed in advance

and then the modes that can not be distinguished are diagnosed by adding adequate quantitative information.In addition

multi fault mode diagnosis method is proposed in this paper.The test result shows that the method is valid.

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Related Author

DONG Zhoujie

GUO Yingqing

DENG Wei

LI Jia-wen

Jun TIAN

Yufan XIE

Fei LONG

Qin LIU

Related Institution

School of Astronautics, Beijing University of Aeronautics and Astronautics

China Special Vehicle Research Institute，Aviation Industry Corporation of China，Limited

Airport Support Bureau，Air Force Logistics Department

Nanjing Puguo Technology Company，Limeted

National Key Laboratory of Science and Technology on Liquid Rocket Engines，Xi'an Aerospace Propulsion Institute，China Aerospace Science and Technology Corporation

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