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工程设计学报
工程设计学报  2019, Vol. 26 Issue (6): 627-634    DOI: 10.3785/j.issn.1006-754X.2019.00.016
设计理论与方法学     
综合利用率评估的民机结构维修间隔确定方法
李耀华, 张海峰
中国民航大学 航空工程学院， 天津 300300
Method for determining maintenance interval of civil aircraft structure combined with assessment of utilization ratio
LI Yao-hua, ZHANG Hai-feng
College of Aeronautical Engineering, Civil Aviation University of China, Tianjin 300300, China
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摘要： 确定结构维修间隔是民机结构维修大纲中的关键内容之一，民机利用率对维修间隔制定的合理性有很大影响。基于环境损伤条件下的民机结构，通过分析不同利用率下影响金属结构环境损伤的指标的敏感性，提出了民机结构维修间隔与利用率匹配模型。在该模型中，应用序关系分析法-属性重要度相结合的组合赋权方法，对不同利用率下影响金属结构环境损伤的指标进行组合权重评估，确定金属结构环境损伤的总等级，并根据环境损伤等级-维修间隔回归方程确定了不同利用率下的民机结构维修间隔，最后采用灰色关联分析法验证了不同利用率下各指标评价值与理想值的关联度。以某型飞机中央盒段上壁板内表面维修间隔确定为例，对所提出的模型进行验证分析，利用模型得到的维修间隔与维修审查委员会报告（maintenance review board report，MRBR）规定相比偏小，鉴于该文件规定的为最低工程要求，从而确定该维修间隔满足要求，证明了模型的有效性。研究成果表明，建立的民机结构维修间隔与利用率匹配模型的适用性较强，可以有效解决国产飞机结构维修大纲中维修间隔确定时利用率考虑不足的问题，具有较高的工程应用价值。
关键词： 利用率;  综合评估;  组合赋权;  灰色关联分析;  结构维修间隔    
Abstract: One of the core contents of the civil aircraft structure maintenance outline is determining the maintenance interval of structure. The utilization ratio has a great influence on the rationality of the maintenance interval. Based on the structure of civil aircraft under environmental damage，a matching model of maintenance interval and aircraft utilization ratio civil aircraft structure was established by analyzing the sensitivity of indicators that affect the environmental damage of metal structures under different utilization ratios. In this model, the combined-weighting method combined the rank-correlation analysis with the attribute-importance was applied to evaluate the combined weight of the indicators affecting the environmental damage of metal structures under different utilization ratios, and the total level of environmental damage of metal structures was determined. The maintenance interval of civil aircraft structure under different utilization ratios was determined based on the damage grade-maintenance interval regression equation. Finally, the grey correlation analysis method was used to verify the correlation between the evaluated value and ideal value of each factor under different utilization ratios. Taking the maintenance interval determination of the upper wall inner surface of the central box section in a certain aircraft as an example, the proposed model was verified and analyzed. The maintenance interval obtained by the model was inferior to the maintenance review board report (MRBR) regulations. In view of the minimum engineering requirements specified in this document, it was determined that the maintenance interval met the requirements, which proved the validity of the model. The research results indicate that the matching model of maintenance interval and utilization ratio of civil aircraft structure has strong applicability, and it can effectively remedy the problem of inadequate utilization ratio consideration in the maintenance interval of domestic aircraft structural maintenance outline, and has high engineering application value.
Key words: utilization ratio    comprehensive assessment    combination weighting    grey relational analysis    structure maintenance interval
收稿日期: 2019-06-12 出版日期: 2019-12-28
CLC:  V 267  
基金资助: XXX民机专项资助项目（XX-2016-Y-XX，XX-2018-Y-XX）；民航技术创新重大专项资助项目（MHRD20160105）
作者简介: 李耀华(1974—)，男，山西原平人，副教授，博士，从事生产计划与调度、智能求解算法及民机维修工程分析等研究，E-mail:li_yaohua@sina.com，https://orcid.org/0000-0001-9018-3952
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引用本文:

李耀华, 张海峰. 综合利用率评估的民机结构维修间隔确定方法[J]. 工程设计学报, 2019, 26(6): 627-634.

LI Yao-hua, ZHANG Hai-feng. Method for determining maintenance interval of civil aircraft structure combined with assessment of utilization ratio. Chinese Journal of Engineering Design, 2019, 26(6): 627-634.

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https://www.zjujournals.com/gcsjxb/CN/10.3785/j.issn.1006-754X.2019.00.016    或    https://www.zjujournals.com/gcsjxb/CN/Y2019/V26/I6/627

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