| 航空发动机转速信号的ARMA模型预测方法研究 |
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| 引用本文： | 刘治国,王进,蔡增杰,孙宏光.航空发动机转速信号的ARMA模型预测方法研究[J].航空计算技术,2011,41(4):85-88. |
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| 作者姓名： | 刘治国 王进 蔡增杰 孙宏光 |
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| 作者单位： | 1. 海军航空工程学院青岛分院,山东青岛,266041
2. 空军装备部,北京,100843 |
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| 摘 要： | 提出了一种基于时间序列理论的分析和预测某型航空发动机转速信号的方法，建立了描述发动机额定转速变化规律的ARMA（3，1）模型，并对发动机转速进行预测。结果表明，所建模型能够以较高精度预测未来一段周期内发动机转速信号的发展趋势和数值大小，说明采用时序分析方法进行航空发动机转速信号预测有效可行。
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| 关 键 词： | 航空发动机 转速信号 状态监测 故障诊断 时间序列 ARMA模型 |
Forecasting Research on Aero- engine Rotate Speed Signal Based on ARMA Model |
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| LIU Zhi-guo,WANG Jin,CAI Zeng-jie,SUN Hong-guang.Forecasting Research on Aero- engine Rotate Speed Signal Based on ARMA Model[J].Aeronautical Computer Technique,2011,41(4):85-88. |
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| Authors: | LIU Zhi-guo WANG Jin CAI Zeng-jie SUN Hong-guang |
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| Institution: | 1(1.Qingdao Branch,Naval Aeronautical Engineering Academy,Qingdao 266041,China;2.Air Force Arming Department of the PLA,Beijing 100843,China) |
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| Abstract: | This paper presents a method to analyze and forecast the rotate speed signal of one type of aero-engine that is based on time series theory by modeling ARMA model,and establishes ARMA(3,1) model to predict the value and transfformation trend of rotate speed signal.The application results show that the erected ARMA(3,1) model can simulate rotate speed signal series quite well with good prediction accuracy,so it suggests that the method which is based on time series and ARMA model can be affectively and applicably used in aero-engine condition monitoring and fault diagnosis. |
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| Keywords: | aero-engine rotate speed signal condition monitoring fault diagnosis time series ARMA model |
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