基于RESID方法的液体火箭发动机实时故障诊断算法设计及半实物仿真验证  

Design of Real Time Fault Diagnosis Algorithm for Liquid Rocket Propulsion Based on the RESID Method

作　　者：薛薇[1] 武小平 张箭 郑孟伟[1] 孙纪国 XUE Wei;WU Xiaoping;ZHANG Jian;ZHENG Mengwei;SUN Jiguo(Beijing Aerospace Propulsion Inst.,Beijing 100076,China)

机构地区：[1]北京航天动力研究所,北京100076

出　　处：《计算机测量与控制》2022年第9期17-21,共5页Computer Measurement &Control

摘　　要：针对氢氧发动机设计了实时故障诊断算法并通过半实物仿真平台对此进行了仿真分析,为建立液体火箭发动机健康管理系统奠定了坚实基础;首先,构建了大推力氢氧发动机常见故障模型,由此可获得典型故障数据;其次,设计并构建了RESID模型,介绍了RESID在故障诊断中的应用及诊断流程,最后,采用RESID算法设计了氢氧发动机实时故障诊断系统,并开展了半实物仿真分析,由仿真结果可见该算法及时有效的诊断出故障,并结合工程实际情况进行了报警,满足了发动机对故障诊断系统的需要。The fault diagnosis system of liquid rocket propulsion is proposed in real time,which is analyzed through the hardware in the loop simulation platform,the foundation is laid for the liquid rocket propulsion health management system.Firstly,the common fault model on high thrust oxyhydrogen engine is set up,so the typical fault dada can be obtained.Secondly,the recursive structure identification(RESID)model is used to design and constructed,then the application and process of the fault diagnosis with the RESID algorithm is introduced.Finally,by using the RESID algorithm,The fault diagnosis system of oxyhydrogen engine is designed and simulated by the hardware in the loop platform in real time,the simulation results show that the algorithm is effective,which alarms in case of failure.The request of the fault diagnosis system for the oxyhydrogen engine is satisfied.

关 键 词：液体火箭发动机 故障诊断 半实物仿真 RESID模型 

分 类 号：V231.25[航空宇航科学与技术—航空宇航推进理论与工程]