Challenges in Estimating the Remaining Useful Life of a Military Aircraft Engine During Scheduled Maintenance Activities

Abstract

This thesis investigates the challenges in estimating the Remaining Useful Life (RUL) of military aircraft engines, within the framework of scheduled maintenance activities. The study identifies significant gaps in existing research, such as the lack of consideration for system interdependencies, the impact of scheduled maintenance activities on RUL estimation, and the impact of fluctuating operational conditions. To address these challenges, a tool was developed to enhance the accuracy of RUL predictions by integrating the effects of maintenance activities and the complex relationships between engine systems. This tool is designed to assist asset managers and maintenance engineers in optimising maintenance schedules, enhancing the accuracy of RUL estimation, and improving the overall reliability and safety of military aircraft engines. The findings contribute to advancing preventive maintenance strategies in the aerospace industry, offering practical solutions for more accurate RUL estimation and laying the foundation for future research in this critical field.