Forecasting Research on Aero-engine Rotate Speed Signal Based on ARMA Model
Hongguang Sun · Aeronautical Computing Technique · 2011
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.