| 基于K-L信息测度的液体火箭发动机的泄漏故障检测 |
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| 引用本文： | 王建波,于达仁,王广雄.基于K-L信息测度的液体火箭发动机的泄漏故障检测[J].航空动力学报,1999,14(4):429-432. |
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| 作者姓名： | 王建波 于达仁 王广雄 |
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| 作者单位： | 哈尔滨工业大学 |
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| 基金项目： | 哈尔滨工业大学校管航天基金 |
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| 摘 要： | 液体火箭发动机的泄漏是常见和极其危险的故障。研究快速有效的泄漏故障检测方法，是一个很重要迫切的课题。本文针对已有发动机的状态监测参数，建立ＡＲ模型进行时间序列分析，利用Ｋ－ Ｌ信息测度作为判别函数来检测发动机的泄漏故障。仿真结果表明，这种泄漏故障检测的方法是切实可行的。
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| 关 键 词： | 液体推进剂火箭发动机 泄漏 故障 时间序列分析 检测 |
| 收稿时间： | 1998/10/1 0:00:00 |
| 修稿时间： | 1998/12/1 0:00:00 |
LEAK FAULT DETECTION OF LIQUID ROCKET ENGINE BASED ON K-L INFORMATION DISTANCE |
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| Wang Jianbo,Yu Daren and Wang Guangxiong.LEAK FAULT DETECTION OF LIQUID ROCKET ENGINE BASED ON K-L INFORMATION DISTANCE[J].Journal of Aerospace Power,1999,14(4):429-432. |
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| Authors: | Wang Jianbo Yu Daren and Wang Guangxiong |
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| Institution: | School of Astronautics, Harbin Institute of Technology, Harbin 150001;School of Astronautics, Harbin Institute of Technology, Harbin 150001;School of Astronautics, Harbin Institute of Technology, Harbin 150001 |
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| Abstract: | The leak of Liquid Rocket Engine (LRE) is very common and dangerous.It is important to research a fast and effective approach for leak detection.In accordance to the measured monitor state parameters of LRE,the AR model is established and the time series analysis is completed.K-L information distance is taken as discriminant function to detect the leak fault of LRE.The simulation results show the leak fault detection algorithm is feasible. |
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| Keywords: | Liquid propellant rocket engine Leakage Time series Analysis Measuring |
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