Predictive maintenance framework of the aircraft system based on PHM information

Predictive maintenance is the novel development from the condition-based maintenance, which is being widely studied in various engineering systems. This paper proposed the integrated predictive maintenance framework for the aircraft system based on the existing maintenance management experience and the output result of prognostic and health management system (PHM).There are four aspects in this framework: historic data analysis, system health assessment, remaining useful life prediction and maintenance decision-making. The simulation study compares the predictive maintenance to the traditional preventive maintenance for the aircraft air-condition system(ACS), and selects the total maintenance cost and the mission reliability as the criteria. The results suggest that the proposed framework is a promising feature in maintenance management for the aircraft system.