Award Juseong Lee for paper on aircraft maintenance

PhD candidate Juseong Lee and his supervisor Dr. Mihaela Mitici have won the First Prize Thomas L. Fagan, Jr., Student Paper Award at RAMS 2021. Reliability and Maintainability Symposium (RAMS) is a premier conference in reliability, availability, and maintainability engineering, which is held annually in the United States. The award is accompanied by a plaque and a $1,000.00 honorarium.

The prize winning paper entitled as “Multi-objective analysis of condition-based aircraft maintenance strategies using discrete even simulation”, is published in IEEE 2021 Annual RAMS proceeding.

As aircraft maintenance is transitioning towards data-driven condition-based maintenance (CBM), its cost and performance objectives need to be re-evaluated. Lee and Dr. Mitici have analyzed the impact of data-driven CBM on maintenance objectives such as cost, aircraft availability and reliability, delay due to maintenance. They show non-trivial trade-offs between performance-oriented objectives (minimizing the number of degradation incidents and delay due to maintenance) and cost-oriented objectives. The CBM strategy based on Remaining-Useful-Life prognostics dominates traditional maintenance strategies in the knee region of the Pareto fronts, where conflicting objectives are balanced. This implies that the transition towards data-driven CBM strategy can reduce the cost while maintaining the performance of aircraft maintenance.

Figure 1: The data-driven CBM strategy named RBR dominates the other maintenance strategies in the knee region of the Pareto front showing trade-offs between two objectives.
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