基于粗糙集的案例推理在民机结构MSG-3分析中的应用
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摘要
确定飞机结构偶然损伤检查任务和间隔是制定飞机结构维修大纲的关键问题之一。在国内缺乏相关使用数据的前提下,本文将基于粗糙集的案例推理应用于民用飞机MSG-3(Maintenance steering group)分析过程。本文从民用飞机MSG-3分析的需求出发,分析了基于案例推理的MSG-3分析基本过程,讨论了民用飞机MSG-3分析案例库的构建、案例表达、案例检索、匹配、案例修改、维修任务和间隔的确定等关键技术。同时,本文应用粗糙集理论,对MSG-3分析的特征属性进行权重分配,从而避免了人的主观性对案例检索准确性的不良影响。最后通过对某重要结构项目进行偶然损伤实例分析,效果良好。
One of the most important things in developing aircraft structure maintenance program is to determine the inspection task and intervals for structure accidental damage. Given the lack of using datum,the method of using rough set and case based reasoning(CBR)is introduced to civil aircraft MSG-3 analysis. According to the requirement of civil aircraft MSG-3(Maintenance steering group)analysis,the research into the method of civil aircraft MSG-3 analysis using CBR is conducted and key techniques,including the case base development,case representation,case retrieval,maintenance task and interval determination,are investigated. Meanwhile,to avoid human's subjectivity influence,rough set is used to allocate the weight of the MSG-3 analysis factors.Finally,we use the significant structure item of aircraft as an example to verify the method.
One of the most important things in developing aircraft structure maintenance program is to determine the inspection task and intervals for structure accidental damage. Given the lack of using datum,the method of using rough set and case based reasoning(CBR)is introduced to civil aircraft MSG-3 analysis. According to the requirement of civil aircraft MSG-3(Maintenance steering group)analysis,the research into the method of civil aircraft MSG-3 analysis using CBR is conducted and key techniques,including the case base development,case representation,case retrieval,maintenance task and interval determination,are investigated. Meanwhile,to avoid human's subjectivity influence,rough set is used to allocate the weight of the MSG-3 analysis factors.Finally,we use the significant structure item of aircraft as an example to verify the method.
引文
[1]左洪福,蔡景,吴昊,等.航空维修工程学[M].北京:科学出版社,2011.ZUO Hongfu,CAI Jing,WU Hao,et al.Aviation maintenance engineering[M].Beijing:Science Press,2011.
[2]Air Transport Association of America.MSG-3Operator/Manufacturer scheduled maintenance development[M].USA:[s.n.],2007.
[3]Boeing Company.BOEING 737-600/700/800 maintenance program development policy and procedures handbook[M].USA:Boeing Company,1996.
[4]Airbus Company.A318/A319/A320/A321 maintenance program development policy and procedures handbook[M].Gemany:Airbus Company,2001.
[5]王国胤.Rough集理论与知识获取[M].西安:西安交通大学出版社,2001:14-21,123-133.WANG Guoyin.Rough set theory and knowledge acquisition[M].Xi’an:Xi’an Jiaotong University Press,2001:14-21,123-133.
[6]石峰,娄臻亮,张永清.一种改进的粗糙集属性约简启发式算法[J].上海交通大学学报,2002,36(4):478-481.SHI Feng,LOU Zhenliang,ZHANG Yongqing.Amodified heuristic algorithm of attribute reduction in rough set[J].Journal of Shanghai Jiaotong University,2002,36(4):478-481.
[7]吴昊.民用飞机规划维修技术理论及应用研究[D].南京:南京航空航天大学,2009.WU Hao.Research on theory and application of civil aircraft maintenance planning[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2009.
[8]吴昊,左洪福,孙伟.基于改进AHP的民机结构偶然损伤检查间隔的研究[J].飞机设计,2008,28(3):57-61.WU Hao,ZUO Hongfu,SUN Wei.A study on the accidental damage inspection intervals of aircraft structure based on the improved AHP[J].Aircraft Design,2008,28(3):57-61.
[9]刘明,左洪福,耿端阳,等.基于RBR与CBR的维修大纲专家系统[J].北京航空航天大学学报,2006,32(5):522-523.LIU Ming,ZUO Hongfu,GENG Duanyang,et al.Expert system of maintenance review board report based on CBR and RBR[J].Journal of Beihang University of Aeronautics and Astronautics,2006,32(5):522-523.
[10]李青,史雅琴,周扬.基于案例推理方法在飞机故障诊断中的应用[J].北京航空航天大学学报,2007,33(5):622-626.LI Qing,SHI Yaqin,ZHOU Yang.CBR methodology application in fault diagnosis of aircraft[J].Journal of Beihang University of Aeronautics and Astronautics,2007,33(5):622-626.
[11]CHENG Zhonghua,JIA Xisheng,GAO Ping,et al.A framework for intelligent reliability centered maintenance analysis[J].Reliability Engineering&System Safety,2008,93(6):806-814.
[12]吴昊.基于案例推理的民用飞机系统维修间隔确定方法研究[J].航空维修与工程,2011(4):55-57.WU Hao.A study on determine the maintenance task interval of civil aircraft system base on CBR[J].Aviation Maintenance&Engineering,2011(4):55-57.
[2]Air Transport Association of America.MSG-3Operator/Manufacturer scheduled maintenance development[M].USA:[s.n.],2007.
[3]Boeing Company.BOEING 737-600/700/800 maintenance program development policy and procedures handbook[M].USA:Boeing Company,1996.
[4]Airbus Company.A318/A319/A320/A321 maintenance program development policy and procedures handbook[M].Gemany:Airbus Company,2001.
[5]王国胤.Rough集理论与知识获取[M].西安:西安交通大学出版社,2001:14-21,123-133.WANG Guoyin.Rough set theory and knowledge acquisition[M].Xi’an:Xi’an Jiaotong University Press,2001:14-21,123-133.
[6]石峰,娄臻亮,张永清.一种改进的粗糙集属性约简启发式算法[J].上海交通大学学报,2002,36(4):478-481.SHI Feng,LOU Zhenliang,ZHANG Yongqing.Amodified heuristic algorithm of attribute reduction in rough set[J].Journal of Shanghai Jiaotong University,2002,36(4):478-481.
[7]吴昊.民用飞机规划维修技术理论及应用研究[D].南京:南京航空航天大学,2009.WU Hao.Research on theory and application of civil aircraft maintenance planning[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2009.
[8]吴昊,左洪福,孙伟.基于改进AHP的民机结构偶然损伤检查间隔的研究[J].飞机设计,2008,28(3):57-61.WU Hao,ZUO Hongfu,SUN Wei.A study on the accidental damage inspection intervals of aircraft structure based on the improved AHP[J].Aircraft Design,2008,28(3):57-61.
[9]刘明,左洪福,耿端阳,等.基于RBR与CBR的维修大纲专家系统[J].北京航空航天大学学报,2006,32(5):522-523.LIU Ming,ZUO Hongfu,GENG Duanyang,et al.Expert system of maintenance review board report based on CBR and RBR[J].Journal of Beihang University of Aeronautics and Astronautics,2006,32(5):522-523.
[10]李青,史雅琴,周扬.基于案例推理方法在飞机故障诊断中的应用[J].北京航空航天大学学报,2007,33(5):622-626.LI Qing,SHI Yaqin,ZHOU Yang.CBR methodology application in fault diagnosis of aircraft[J].Journal of Beihang University of Aeronautics and Astronautics,2007,33(5):622-626.
[11]CHENG Zhonghua,JIA Xisheng,GAO Ping,et al.A framework for intelligent reliability centered maintenance analysis[J].Reliability Engineering&System Safety,2008,93(6):806-814.
[12]吴昊.基于案例推理的民用飞机系统维修间隔确定方法研究[J].航空维修与工程,2011(4):55-57.WU Hao.A study on determine the maintenance task interval of civil aircraft system base on CBR[J].Aviation Maintenance&Engineering,2011(4):55-57.