Prediction Approach to Life on Wing for Civil Aeroengine |
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Authors: | RONG Xiang ZUO Hong-fu ZHANG Hai-jun |
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Affiliation: | College of Civil Aviation, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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Abstract: | To reduce engine maintenance cost and support safe operation, a prediction method of engine life on wing was proposed. This method is a kind of regression model which is a function of the condition monitoring and failure data. Key causes of engine removals were analyzed, and the life limit due to performance deterioration was predicted by proportional hazards model. Then the scheduled removal causes were considered as constraints of engine life to predicte the final life on wing. Application of the proposed prediction method to the case of CF6-80C2A5 engine fleet in an airline proved its effectiveness. |
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Keywords: | Civil aeroengine Condition based maintenance Life on wing Scheduled and unscheduled removal causes Proportion-al hazards model |
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