Research on prognostic health management (PHM) model for fighter planes based on flight data

Flight data records many important state parameters, which will be useful to process monitoring and fault diagnosis of fighter planes. Aiming at the problems of backward data processing means, poor analytical facilities and limited range of application in the maintenance of aircraft, this paper proposes a PHM model for fighter planes based on flight data. Architecture of the PHM system contains onboard data acquisition subsystem and ground-based data processing subsystem. Based on the onboard data acquisition subsystem, function model of ground-based data processing subsystem was analyzed and the ground-based data processing subsystem was designed in detail from software to hardware. Some key technologies such as data pretreatment, tendency analysis, fault forecasting, state monitoring and decision consulting are depicted and specific methods of realization are given concretely.