以可用度为目标的民用飞机不完全预防性维修间隔优化  

Interval optimization of civil aircraft imperfect preventive maintenance based on availability

作　　者：吴晓 王瀛[2] 彭超峰 WU Xiao;WANG Ying;PENG Chaofeng(Maintenance Engineering Department,Shanghai Aircraft Custom Service Co.,Ltd.,Shanghai 200241,China;Engineering Department,Beijing Aircraft Maintenance Engineering Co.,Ltd.,Beijing 100621,China)

机构地区：[1]上海飞机客户服务有限公司维修工程部,上海200241 [2]北京飞机维修工程有限公司工程部,北京100621

出　　处：《航空工程进展》2023年第1期121-127,共7页Advances in Aeronautical Science and Engineering

摘　　要：民用飞机制造商推荐的初始预防性维修间隔通常不考虑运营环境和维修能力的差异,在满足飞机安全性要求的同时,难以达到可用性的最优状态。基于不完全维修理论,采用役龄回退因子修正部件的可靠性模型,以反映维修工作对于部件性能的影响;结合航空公司运行实际情况,以部件可用度为目标函数,可靠度阈值为约束条件,提出不完全维修策略下的预防性维修间隔优化模型,并以某型飞机的空气起动机航线故障数据进行实例验证。结果表明:在满足可靠度阈值的约束条件下,所建立的维修间隔优化模型得出的最优维修间隔与实际相符,该模型合理可行。The initial preventive maintenance interval recommended by civil aircraft manufacturers usually does not consider the operators’environment and maintenance capacity difference.It is difficult to achieve the optimal state of availability while meeting the requirements of aircraft safety.Based on the imperfect maintenance theory,the reliability model of components is modified by the service age fallback factor to reflect the impact of maintenance work on component performance.Combined with the airlines operation reality,taking component availability as the objective function and reliability threshold as the constraint condition,the preventive maintenance interval optimization model in imperfect maintenance strategy is established.An example is given to verify the air starter line fault data of an aircraft.The results show that the optimal maintenance interval obtained by the established maintenance interval optimization model is consistent with the actual situation,and the model is reasonable and feasible.

关 键 词：役龄回退因子 不完全维修 可用度 可靠度 威布尔分布 

分 类 号：V267[航空宇航科学与技术—航空宇航制造工程]