基于改进不等时距灰色模型的老龄飞机结构腐蚀预测
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摘要
结合国内某航空公司提供的B757机型的腐蚀维护数据,从初始值优化、背景值优化以及引入权重矩阵三方面对不等间距灰色模型进行改进,并对飞机结构件进行了腐蚀预测。结果表明:相对于传统灰色模型,综合优化的不等时距灰色模型可进一步提高预测结果精度,可对民用机的维修任务优化起到支持作用。
Combined with the corrosion maintenance data of the B757 model provided by a domestic airline,the unequal-pitch gray model was improved from the initial value optimization,background value optimization and the introduction of weight matrix,and the corrosion prediction of the aircraft structural parts was carried out.The results show that compared with the traditional gray model,the comprehensive optimization of unequal-time gray model could further improve the accuracy of the prediction results,and could support the optimization of maintenance tasks for civil aircraft.
Combined with the corrosion maintenance data of the B757 model provided by a domestic airline,the unequal-pitch gray model was improved from the initial value optimization,background value optimization and the introduction of weight matrix,and the corrosion prediction of the aircraft structural parts was carried out.The results show that compared with the traditional gray model,the comprehensive optimization of unequal-time gray model could further improve the accuracy of the prediction results,and could support the optimization of maintenance tasks for civil aircraft.
引文
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[2]黄昌龙.老龄波音757结构修理安全问题及对策[J].航空维修与工程,2003(6):25-27.
[3]程凯.面向CPCP要求的民机结构腐蚀控制方法研究[J].民用飞机设计与研究,2008(3):19-22,27-30.
[4]杨晓华.腐蚀累积损伤理论研究与飞机结构日历寿命分析[D].南京:南京航空航天大学,2002.
[5]张春晓,石晓磊.腐蚀条件下基于残差修正的飞机结构寿命灰色马氏链预测[J].腐蚀与防护,2016,37(3):230-235,240.
[6]张川.含腐蚀损伤金属材料剩余寿命与剩余强度研究[D].南京:南京航空航天大学,2012.
[7]黄亚超.基于环境的K8E飞机典型结构件腐蚀损伤研究[D].南昌:南昌航空大学,2013.
[8]张军.灰色预测模型的改进及其应用[D].西安:西安理工大学,2008.
[9]韩晋,杨岳,陈峰,等.基于非等时距加权灰色模型与神经网络的组合预测算法[J].应用数学和力学,2013,34(4):408-419.
[10]王车效.基于初值修正的非等距灰色预测模型[J].重庆师范大学学报(自然科学版),2006(3):42-44.
[11]刘世兴,杜洪增,白杰.老龄飞机腐蚀问题研究[J].中国民航学院学报,2004(S1):99-101.
[12]王安东,陈跃良,张勇,等.基于灰色马尔科夫模型的2A12铝合金腐蚀预测方法研究[J].装备环境工程,2014(6):22-28.
[13]LI Q X,LIU S F,JEFFREY Y L F.Fundamental definitions and calculation rules of grey mathematics:a review work[J].Journal of Systems Engineering and Electronics,2015,26(6):1254-1267.
[14]CALEYO F,VELAZQUEZ J C,VALOR A,et al.Markov chain modelling of pitting corrosion in underground pipelines[J].Corrosion Science,2009,51(9):2197-2207.