基于案例推理和粗糙集的商用飞机故障诊断研究  

Research on Fault Diagnosis of Commercial Aircraft Based on Case Base Reasoning and Rough Set

作　　者：晏震乾 曹磊 陈金 Yan Zhenqian;Cao Lei;Chen Jin(Shanghai Engineering Research Center of Civil Aircraft Health Monitoring,Shanghai200241,China;Beijing Aerospace Measure&Control Corp Ltd,Beijing 100041,China;Beijng Key Laboratory of High一speed Transport Intelligent Diagnostic and Health Management,Beijing 100041,China;Beijing Engineering Laloratory of Rail Transportation Equipment Lifc Cyele Condition Monitoring and Intelligent Management Technology and Application,Beijing 100041,China)

机构地区：[1]上海民用飞机健康监控工程技术研究中心,上海200241 [2]北京航天测控技术有限公司,北京100041 [3]北京市高速交通工具智能诊断与健康管理重点实验室,北京100041 [4]轨道交通装备全寿命周期状态监测与智能管理技术与应用北京市工程实验室,北京100041

出　　处：《计算机测量与控制》2020年第8期23-26,31,共5页Computer Measurement &Control

摘　　要：为了实现国产商用飞机维修和自动化故障诊断的需要,将商用飞机在役维修积累的维修故障描述记录文档进行信息化和智能化故障诊断;采用基于案例推理和粗糙集结合的方法进行国产商用飞机故障诊断的研究;其中,用MongoDB存储飞机故障案例库,通过构建中文航空词本进行同义词替换减少故障案例描述的中文表述差异,使用粗糙集表示故障案例,粗糙集动态决策计算案例的属性权重并结合海明距离实现案例检索,最后是案例库学习扩充案例库的案例数量和质量,提高基于案例推理国产商用飞机故障诊断系统的可靠性;并通过实验重点验证粗糙集动态决策计算案例的特征属性权重,和结合海明距离相似数计算两个案例间的相似性,证明基于案例推理和粗糙集进行国产商用飞机故障诊断的可行性和有效性。In order to realize the needs of domestic commercial aircraft maintenance and automatic fault diagnosis,the maintenance fault description record files accumulated by the commercial aircraft in service maintenance are used for information and intelligent fault diagnosis.A case-based reasoning and rough set combination method is used to study the fault diagnosis of domestic commercial aircraft.Among them,MongoDB is used to store the aircraft failure case database,and the Chinese aviation wordbook is used to replace synonyms to reduce the difference in the Chinese expression of the fault case description.The rough set is used to represent the fault case.The rough set determines the attribute weight of the case and combines the Hamming distance for case retrieval.Finally,the case library learns to expand the number and quality of cases in the case library,and improve the reliability of the fault diagnosis system for domestic commercial aircraft based on case-based reasoning.And through experiments,the feature attribute weights of the rough set dynamic decision calculation case and the similarity between the two cases combined with the Hamming distance similarity number are calculated to prove the feasibility and effectiveness of fault diagnosis of domestic commercial aircraft based on case reasoning and rough set.

关 键 词：基于案例推理 粗糙集 海明距离 MONGODB 同义词替换 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]