Abstract
The aim of the article was to develop a tool to support the process of planning and managing aircraft (ac) maintenance. Aircraft maintenance management has been presented for scheduled technical inspections resulting from manufacturers’ technical documentation for ac. The authors defined the problem under investigation in the form of a four-phase decisionmaking process taking into account assignment of aircraft to airports and maintenance stations, assignment of crew to maintenance points, setting the schedules, i.e. working days on which aircraft are directed to maintenance facilities. This approach to the planning and management of aircraft maintenance is a new approach, unprecedented in the literature. The authors have developed a mathematical model for aircraft maintenance planning and management in a multi-criteria approach and an optimisation tool based on the operation of a genetic algorithm. To solve the problem, a genetic algorithm was proposed. The individual steps of the algorithm construction were discussed and its effectiveness was verified using real data.
Highlights
The process of planning and management of aircraft maintenance is one of the key processes determining the effective functioning of an organization dealing with air transport
Aircraft maintenance planning at work has been defined as the determination of maintenance schedules, i.e. the days of directing of the ac to the maintenance facility together with the indication of the facility carrying out the maintenance, while maintenance management has been defined as the assignment of crew to the maintenance facility
The following thematic issues were distinguished in the article: a thorough analysis of the state of the art on the issue of ac maintenance planning and management was carried out, a mathematical model was presented with defined input data, variable decisional constraints and criterion functions, a genetic algorithm was described and its correctness was verified on real data
Summary
The process of planning and management of aircraft maintenance is one of the key processes determining the effective functioning of an organization (both military and civil) dealing with air transport. The necessity of applying heuristic algorithms in the analysed problem is dictated by the fact that the computational complexity of the problem of planning and managing aircraft maintenance increases exponentially, non-linearly (introduction of an additional airport, additional maintenance facility, additional crew generates exponential increase of decision variables solving the given mathematical model). For this reason, classical methods and algorithms solving linear decision-making problems do not work in this problem. The following thematic issues were distinguished in the article: a thorough analysis of the state of the art on the issue of ac maintenance planning and management was carried out, a mathematical model was presented with defined input data, variable decisional constraints and criterion functions, a genetic algorithm was described and its correctness was verified on real data
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