Remaining-Useful-Life prognostics for opportunistic grouping of maintenance of landing gear brakes for a fleet of aircraft

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Published Jun 29, 2022
Juseong Lee Ingeborg de Pater Stan Boekweit Mihaela Mitici

Abstract

Several studies have proposed Remaining-Useful-Life (RUL) prognostics for aircraft components in the last years. However, few studies focus on integrating these RUL prognostics into maintenance planning frameworks. This paper proposes an optimization model for opportunistic maintenance scheduling of aircraft components that integrates RUL prognostics and that groups the maintenance of these components to reduce costs. We illustrate our approach for the maintenance of a fleet of aircraft, each equipped with multiple landing gear brakes. RUL prognostics for the landing gear brakes are obtained using a Bayesian regression model. Based on these RUL prognostics, we group the replacement of brakes using an integer linear program. As a result, we obtain a cost-optimal RUL-driven opportunistic-maintenance schedule for the brakes of a fleet of aircraft. Compared with traditional maintenance strategies, our approach leads to a reduction of up to 20% of the total maintenance costs.

How to Cite

Lee, J. ., de Pater, I., Boekweit, S., & Mitici, M. (2022). Remaining-Useful-Life prognostics for opportunistic grouping of maintenance of landing gear brakes for a fleet of aircraft. PHM Society European Conference, 7(1), 278–285. https://doi.org/10.36001/phme.2022.v7i1.3316
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Keywords

Prognostics, Remaining-Useful-Life, Opportunistic maintenance, Landing gear brakes

Section
Technical Papers