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Optimal Replacement Policy of Jet Engine Modules from the Aircarrier's Point of View
Anita Domitrović
Ernest Bazijanac
Ivo Čala
Abstract
A mathematical model for optimising preventive maintenanceof aircraft jet engine was developed by dynamic programming.Replacement planning for jet engine modules is regardedas a multistage decision process, while optimum modulereplacement is considered as a problem of equipment replacement.The goal of the optimal replacement policy of jet enginemodules is a defined series of decisions resulting in minimummaintenance costs. The model was programmed inC++ programming language and tested by using CFM56 jetengine data. The optimum maintenance strategy costs werecompared to costs of simpler experience-based maintenancestrategies. The results of the comparison j usti.JY further developmentand usage of the model in order to achieve significant costreduction for airline carriers.
Keywords
aircraft operation and maintenance; jet engine; dynamic programming; optimal replacement policy
Hrčak ID:
102163
URI
Publication date:
25.1.2008.
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