Simplified Machine Diagnosis Techniques Using AR Model of Absolute Deterioration Factor

Abstract

In order to make machine diagnosis, the method of calculating Kurtosis or Bicoherence was utilized. Calculating system parameter distance was also utilized applying time series data to AR(Auto Regressive) model or ARMA(Auto Regressive Moving Average) model. In this paper, simplified calculation method of machine diagnosis techniques is introduced utilizing system parameter distance under the application for AR model. Furthermore, absolute deterioration factor such as Bicoherence is introduced.