基于改进归纳式监控算法的液体火箭发动机实时故障检测

高克寒; 张素明; 王晓林; 安雪岩

doi:10.13224/j.cnki.jasp.2016.10.032

基于改进归纳式监控算法的液体火箭发动机实时故障检测

doi: 10.13224/j.cnki.jasp.2016.10.032

1. 北京控制与电子技术研究所, 北京 100038;
2. 北京宇航系统工程研究所, 北京 100076

详细信息

作者简介:
高克寒(1989-),女,河北石家庄人,助理工程师,硕士,主要从事高超声速飞行器控制技术及发动机故障诊断技术研究.

中图分类号: V434;TP277
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出版历程
- 收稿日期: 2015-01-28
- 刊出日期: 2016-10-28

Fault detection for liquid-propellant rocket engine based on improved inductive monitoring system

1. Beijing Institute of Control and Eletronics Technology, Beijing 100038, China;
2. Beijing Institute of Astronautical Systems Engineering, Beijing 100076, China

摘要

摘要: 对归纳式监控算法（IMS）应用于故障检测时虚警率高的问题，提出一种改进IMS.改进后的算法对测试时可能出现的野点进行了处理，降低了待测数据中野点对测试结果的干扰.以某型液体火箭发动机仿真试车数据为例，进行了使用IMS的实时故障检测实验.结果表明，原始IMS在进行故障检测时会出现多次虚警，改进后的IMS在实时准确的同时，虚警率大大降低，由37.5%降低至0，达到液体火箭发动机故障检测程序的要求.
- 故障检测 /
- 液体火箭发动机 /
- 归纳式监控算法 /
- 野点处理 /
- 虚警率
Abstract: The problem of high false alarm rate when inductive monitoring stystem (IMS) was applied to monitor the system during trials or flights was analyzed, and an improved IMS method was proposed. The improved algorithm processed outliers that may occur during the test, reducing interference evoked by outliers of test data. The experiment was conducted by taking the trial data of a certain type of liquid-propellant rocket engine as an example. Simulation was performed and the result verified that the original IMS had a high false alarm rate, yet the improved IMS can decrease false alarm rate from 37.5% to 0 while ensuring timeliness, reliability and accuracy of fault detection.
- fault detection /
- liquid-propellant rocket engine /
- inductive monitoring system /
- outliers processing /
- false alarm rate

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参考文献(18)

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