液体火箭发动机地面试车过程的实时故障检测方法研究  

Research of Real-Time Fault Detection Method for Liquid Propellant Rocket Engines in Ground Test

作　　者：刘洪刚[1] 魏鹏飞[2] 谢廷峰[1] 黄强[1] 吴建军[1] 

机构地区：[1]国防科技大学航天与材料工程学院,长沙410073 [2]二炮驻7103厂军代室,西安710100

出　　处：《宇航学报》2007年第6期1660-1663,1688,共5页Journal of Astronautics

基　　金：教育部新世纪优秀人才支持计划(NCET-06-0927)

摘　　要：为解决液体火箭发动机地面试车过程中故障检测的及时性、实时性、可靠性和稳健性等关键问题,研究建立了稳态和启动工作过程实时故障检测与报警的自适应相关算法和包络线算法,并进行了大量试车数据的验证和地面试车的实时考核。结果表明,算法能对发动机启动和稳态工作过程中的故障及时准确地检测,并在地面试车的实时和强干扰环境下具有良好的可靠性和稳健性。研究结果对研制工程实用的我国运载火箭健康监控系统具有重要的理论和应用价值。To overcome the obstacles existed in the fault detection of ground tests for liquid-propellant rocket engines such as the lack of real-time,in-time,reliable and robust ability,an adaptive correlation algorithm and an envelope algorithm for the real-time fault detection in the startup and normal process of engines were researched and developed in the paper.Results verified with a large amount of test data and real ground tests show that,the methods proposed can not only detect the faults occurred effectively...

关 键 词：液体火箭发动机 实时故障检测 自适应相关算法 包络线算法 

分 类 号：V434.3[航空宇航科学与技术—航空宇航推进理论与工程]