| 利用靶场飞行试验遥测数据提取导弹涡喷发动机故障特征的方法研究 |
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| 引用本文： | 魏晓绛,谌国森,倪春雷.利用靶场飞行试验遥测数据提取导弹涡喷发动机故障特征的方法研究[J].战术导弹技术,2011(6):18-22. |
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| 作者姓名： | 魏晓绛 谌国森 倪春雷 |
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| 作者单位： | 92941部队; |
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| 摘 要： | 在靶场飞行试验阶段,导弹涡喷（扇）发动机的遥测参数主要有转速、喷嘴前压力等很少几个,飞行结束后供分析的参数是以较长时间轴为坐标的曲线,未经处理的故障特征往往被噪声信号淹没,很难找到高频故障特征.介绍了利用小波变换结合神经网络对遥测数据分析,寻找故障出现的时刻,并结合地面试车故障树数据库,准确定位涡喷发动机的故障类型的方法.
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| 关 键 词： | 涡喷发动机 遥测数据 小波分析 奇异点 |
Study of Failure Characteristics Extraction Method of Missile Turbojet Based on Flight Test Telemetry Data of Test Range |
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| Wei Xiaojiang,Chen Guosen,Ni Chunlei.Study of Failure Characteristics Extraction Method of Missile Turbojet Based on Flight Test Telemetry Data of Test Range[J].Tactical Missile Technology,2011(6):18-22. |
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| Authors: | Wei Xiaojiang Chen Guosen Ni Chunlei |
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| Affiliation: | Wei Xiaojiang,Chen Guosen,Ni Chunlei(Unit 92941,Huludao Liaoning 125001,China) |
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| Abstract: | During the flight test at test range,there are several telemetry parameters of missile turbojet(fan),including rotation,pressure before nozzle,etc.After the test,coordinate curve used as parameter is analyzed.It is difficult to find high frequency failure characteristics because the failure characteristics which aren't processed are sunk in noise.Combined with neural network,wavelet transform is used to analyze the telemetry data and find the failure time.Ground test failure tree database is used to locate ... |
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| Keywords: | turbojet telemetry data wavelet analysis singular point |
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