民机结构环境损伤的组合赋权评定方法

李慧萍; 李耀华

doi:10.13433/j.cnki.1003-8728.2018.0718

民机结构环境损伤的组合赋权评定方法

doi: 10.13433/j.cnki.1003-8728.2018.0718

1.
中国民航大学航空工程学院, 天津 300300

基金项目:

民航科技项目重大专项项目（MHRD20160105）与中央高校基金项目（3122016D012）资助

详细信息

作者简介:
李慧萍(1987-),助教,硕士研究生,研究方向为民机维修工程分析,hpli@cauc.edu.cn

计量
- 文章访问数: 193
- HTML全文浏览量: 23
- PDF下载量: 13
- 被引次数: 0
出版历程
- 收稿日期: 2017-08-09
- 刊出日期: 2018-07-05

Combination Weighting Rating Method for Civil Aircraft Structural Environmental Deterioration

1.
College of Aeronautic Engineering, Civil Aviation University of China, Tianjin 300300, China

摘要

摘要: 针对民机结构环境损伤评定问题进行研究，基于国内研究的现有赋权方法或者偏重主观经验或者过分依赖客观数据的现状，提出基于组合赋权的评定模型方法。该模型采用层次分析法确定主观权重，采用粗糙集理论中决策表的信息熵知识确定客观权重，然后利用向量夹角公式，找到二者之间合理的权重分配系数，实现组合赋权，进而确定总等级，并根据等级间隔对应关系确定检查间隔。最后以某型飞机的重要结构项目为例进行验证分析，效果良好。
- 民机 /
- 结构 /
- 环境损伤 /
- 组合赋权 /
- 检查间隔
Abstract: Environmental deterioration rating of aircraft structure is studied. The existing weighting methods depend on either subjective experience or objective data overly, and the rating method based on combination weighting is presented. The rating model uses analytic hierarchy process to determine the subjective weight, and the objective weight is obtained with information entropy of decision table in rough sets theory. Then the reasonable distribution coefficients between the two weight vectors are calculated with vector angle formula, and the combination weighting is obtained. Furthermore, the determination of total rating and inspection interval by rating-interval regression equation is performed. Finally, the structural significant items of a certain type aircraft are taken as examples to verify the proposed method.
- aircraft /
- structure /
- environmental deterioration /
- combination weighting /
- inspection interval

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参考文献(16)

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