飞机主最低设备清单建议书相似案例提取技术研究  

Similar cases extraction technology for aircraft PMMEL

作　　者：闫锋[1] 袁旭峰 尹楚雄 李小凡 YAN Feng;YUAN Xufeng;YIN Chuxiong;LI Xiaofan(Civil Aviation Flight University of China,Guanghan 618307,China;COMAC Shanghai Aircraft Customer Service Co.,Ltd.,Shanghai 200241,China)

机构地区：[1]中国民用航空飞行学院,广汉618307 [2]上海飞机客户服务有限公司,上海200241

出　　处：《民用飞机设计与研究》2022年第3期112-117,共6页Civil Aircraft Design & Research

基　　金：工信部民机专项(MJ-2018-Y-56);中央高校教改项目(E2021014-2和E2021013-4);民航局教育人才类项目(0252002);中国民航飞行学院研究生课程建设项目(XKJ2019-2)。

摘　　要：国内外民机获得批准使用的主最低设备清单(master minimum equipment list,简称MMEL)项目,特别是在用户中认可度较高的民机MMEL项目,可作为备选目标机型主最低设备清单建议书(proposed master minimum equipment list,简称PMMEL)项目进行考虑。以高频空调系统为例,研究飞机系统相似性算法,在分析目标机型的PMMEL需求时,考虑该设备或项目所处系统功能和结构的相似性,制定相似准则判定技术,利用该技术提取目标机型相似PMMEL项目,可形成目标机型相似PMMEL项目清单,使民机制造商的用户需求分析具有可比性。以欧式距离与权重为主进行相似度计算,以航线中MEL(最低设备清单)条目使用率较高的空调分配系统为例,验证了相似性算法与相似案例提取技术研究的可行性,得出在确定PMMEL备选建议清单时可考虑依据相似机型确定的方法;汇总A320与波音737飞机部分空调系统相似部件,为完成编制PMMEL项目及建立相似机型数据库提供理论基础。MMEL(master minimum equipment list) projects approved for use by domestic and foreign civil aircraft, especially those with high recognition among users, can be considered as PMMEL projects of alternative target aircraft. Taking the air conditioning system of high frequency as an example, the similarity algorithm of aircraft system was studied. When analyzing the PMMEL requirements of the target aircraft, the similarity of the system function and structure of the equipment or project was considered, and the similarity criterion judgment technology was formulated. By using this technology, the PMMEL project list of the target aircraft can be extracted, which makes the user demand analysis of civil aircraft manufacturers comparable. The similarity calculation was based on Euclidean distance and weight. Taking the air-conditioning distribution system with high utilization rate of MEL(minimum equipment list) items in the route as an example, the feasibility of similarity algorithm and similar case extraction technology was verified, and it is concluded that the method of determining the PMMEL alternative suggestion list can be considered according to similar models. This paper summarizes some similar parts of air conditioning systems of A320 and Boeing 737 aircraft, which provides a theoretical basis for compiling and establishing a database of similar aircraft.

关 键 词：相似性算法 PMMEL(主最低设备清单建议书) 欧氏距离 权重 

分 类 号：V21[航空宇航科学与技术—航空宇航推进理论与工程]