液体火箭发动机泄漏故障诊断的信息融合技术

Leak Fault Diagnosis of Liquid Rocket Engine Based on Data Fusion

从故障诊断角度出发 ,分析了故障诊断和信息融合技术关系。综合现在进行液体火箭发动机检漏的相关技术 ,为了弥补泄漏故障诊断信息不足等问题 ,提出了采用点式和红外传感器相结合的方法来探测泄漏故障引起的各种现象 ,概述了该领域的相关技术和实现方法 ,建立了基于信息融合的泄漏故障检测与诊断系统 ,有利于提高泄漏故障的有效性和可信度。

In this paper we analyze the relation between fault diagnosis and data fusion,and summarize the correlative techniques of leak detection.In order to make up the shortage of information for leak fault diagnosis,we integrate multi-sensors,such as the dotted sensors and the infrared sensors,to detect the phenomena caused by the leak,and then the system based on data fusion for diagnosing the leak of LRE is established.The approach can enhance the validity and reliability of leak fault diagnosis.