Prediction Approach to Life on Wing for Civil Aeroengine

作     者：戎翔 左洪福 张海军 RONG Xiang,ZUO Hong-fu,ZHANG Hai-jun College of Civil Aviation,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China

作者机构：College of Civil AviationNanjing University of Aeronautics and Astronautics 

出 版 物：《Journal of Southwest Jiaotong University(English Edition)》 (西南交通大学学报（英文版）)

年 卷 期：2008年第16卷第2期

页      面：170-175页

学科分类：082502[工学-航空宇航推进理论与工程] 08[工学] 0825[工学-航空宇航科学与技术] 

基　　金：The joint fundations of National Natural Science Foundation of China and Civil Aviation Administration of China (60672164) National High-tech Research and Development Program of China (863 Program)(2006AA04Z427) 

主　　题：Civil aeroengine Condition based maintenance Life on wing Scheduled and unscheduled removal causes Proportional hazards model 

摘      要：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 finai life on wing. Application of the proposed prediction method to the case of CF6-80C2A5 engine fleet in an airline proved its effectiveness.