南京理工大学学报(自然科学版)Issue(3):306-311,6.DOI:10.14177/j.cnki.32-1397n.2015.39.03.009
民用飞机成组维修方案优化模型研究
Optimization model of group maintenance scheme for civil aircraft
摘要
Abstract
Aiming at the characteristics of civil aircraft maintenance of many tasks, high costs and vast differences of maintenance intervals, an optimization model of group maintenance scheme for civil aircrafts is proposed based on group maintenance policy. The maintenance cost of civil aircraft is divided into shuting down cost for preventive maintenance, cost for components including consumptive material cost and labor cost for preventive maintenance, trouble shooting cost for unscheduled maintenance and loss for failure. The influences of the group maintenance scheme on daily utilization ratio and average maintenance cost efficiency of civil aircraft are researched. An opti-mization model of group maintenance scheme for civil aircrafts is established with a basic regular in-spection interval and maintenance task intervals as optimization variables,the daily utilization ratio and reliability of civil aircrafts as constraints and the minimality of the maintenance cost as the objective function. A group maintenance scheme is made for CRJ200 conditioner system, a basic regular inspection interval for the civil aircraft is obtained and the maintenance task intervals for components are adjusted to achieve global optimum,which affirms the availability of the optimization model of group maintenances scheme.关键词
民用飞机/成组维修/费用/维修间隔/预防性维修/非计划维修/平均维修费用率/日利用率Key words
civil aircrafts/group maintenance/costs/maintenance intervals/preventive maintenance/unscheduled maintenance/maintenance cost efficiency/utilization ratio分类
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蔡景,李鑫,肖罗椿..民用飞机成组维修方案优化模型研究[J].南京理工大学学报(自然科学版),2015,(3):306-311,6.基金项目
国家自然科学基金(61079013) (61079013)
江苏省自然科学基金(BK2011737) (BK2011737)