Work Task Order Optimization in Aircraft Hangar Maintenance: A Constraint-Based Heuristic Programming Approach

Scheduled aircraft maintenance consists of a set of work tasks to be executed. This thesis focuses on improving the order in which these work tasks are executed. Because finding an optimum for these kind of problems is computationally intensive, the chosen approach is of heuristic nature, which is a practical method resulting in close-to-optimal...

Constrained Multi-Aircraft Maintenance Scheduling Using Component Prognostics

In recent years, airlines have increasingly developed the ability to monitor the condition of aircraft components by means of sensors. In turn, aircraft maintenance aims to use this sensor data to predict component failures. However, the challenge remains to make use of these prognostics to generate appropriate maintenance schedules. In this...

Investigating causal factors in aircraft spare parts demand to improve the accuracy of demand forecasting models

An Integrated Planning Approach: Maintenance Task Scheduling Optimization

Aircraft base maintenance consists of hundreds of tasks including preventive, corrective and modification tasks which have to be scheduled to a few check moments per year. The allocation of tasks to checks represents a complex scheduling problem due to the constraints involved. A mixed integer linear programming model was developed to optimize...