液体火箭发动机地面试车故障检测的自适应阈值算法  

Adaptive thresholds algorithm for fault detection of liquid rocket engine in ground test

作　　者：朱恒伟 王克昌[2] 陈启智[2] 

机构地区：[1]第二炮兵第四研究所,北京100085 [2]国防科技大学航天技术系,湖南长沙410073

出　　处：《推进技术》2000年第1期1-4,共4页Journal of Propulsion Technology

基　　金：国家自然科学基金!资助项目 ( 5 980 60 14 )

摘　　要：提出一种自适应阈值故障检测算法,其检测阈值由实时估计的参数均值、标准差及由训练算法得到的带宽系数计算。用某发动机22次点火试验的试车数据进行离线故障检测,结果表明其综合性能优于红线系统和SAFD算法。Presented an adaptive thresholds algorithm(ATA) for fault detection of liquid rocket engine(LRE), the parameter thresholds of which were calculated from real time estimated mean values, standard deviations and fixed band width factors trained by test data using the training algorithm also introduced The performance of ATA is higher than both the System for Anomaly and Failure Detection(SAFD) algorithm and the Redline System(RS) algorithm, indicated by off line detection results of test data measuredin twenty two ground tests of a large LRE

关 键 词：液体火箭发动机 地面试验 故障检测 自适应阈值 

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]