基于模糊规则集度量的液体火箭发动机故障诊断

推进技术 ›› 1997, Vol. 18 ›› Issue (5): 5-8.

基于模糊规则集度量的液体火箭发动机故障诊断

黄敏超,张育林,陈启智

国防科技大学航天技术系!长沙;410073;国防科技大学航天技术系!长沙;410073;国防科技大学航天技术系!长沙;410073

发布日期:2021-08-15

FAULT DIAGNOSIS OF LIQUID ROCKET ENGINE BASED ON FUZZY MEASURING OF FUZZY RULE SETS

Dept. of Aerospace Technology, National Univ. of Defense Technology, Changsha, 410073;Dept. of Aerospace Technology, National Univ. of Defense Technology, Changsha, 410073;Dept. of Aerospace Technology, National Univ. of Defense Technology, Changsha, 410073

Published:2021-08-15

摘要/Abstract

摘要： 以模糊规则集度量为核心，提出了一种液体火箭发动机故障诊断系统。利用模糊待检规则集与模糊参考规则集之间的度量结果为故障诊断逻辑，输出故障检测时间、故障分离时间、故障类型和故障程度。仿真研究表明：基于模糊规则集度量的故障诊断性能比较优越。

关键词: 液体推进剂火箭发动机;模糊集合;故障诊断

Abstract: By getting at the core of the fuzzy measuring of the fuzzy rule sets, a scheme systemused for fault diagnosis is proposed in this paper. With the measuring results between the fuzzy rulesets to be detected and the fuzzy reference rule sets, the diagnosis logic can output fault detectiontime, fault isolation time, fault mode and fault degree. The simulation research of fault diagnosis ina liquid rocket engine demonstrates superior qualities of the fault diagnosis method based on the fuzzymeasuring Of the fuzzy rule sets.

Key words: Liquid propellant rocket engine;Fuzzy set;Fault diagnosis

黄敏超,张育林,陈启智. 基于模糊规则集度量的液体火箭发动机故障诊断[J]. 推进技术, 1997, 18(5): 5-8.