服役飞机结构件腐蚀失效故障树分析及改进

潘 波; 黄领才; 姜同敏; 侯卫国

服役飞机结构件腐蚀失效故障树分析及改进

北京航空航天大学工程系统工程系, 北京 100191

详细信息

作者简介:
潘波(1979-),男,重庆忠县人,博士生,panbo@dse.buaa.edu.cn.

中图分类号: V 37
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出版历程
- 收稿日期: 2009-03-10
- 网络出版日期: 2010-03-31

Fault tree analysis of corrosion failure for aircraft structures and improvements

Dept. of System Engineering of Engineering Technology, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 对某出口用飞机铝合金结构件在热带海洋大气环境条件下服役时所发生的腐蚀失效问题,提出了采用故障树分析方法对引起飞机结构件腐蚀失效的各因素进行系统分析和探讨.根据结构件腐蚀失效过程及机理的分析,确定导致结构件腐蚀失效的各个因素,建立以结构件腐蚀失效为顶事件的故障树,通过布尔代数运算得到故障树的各阶最小割集.计算故障树顶事件的发生概率,并对底事件的概率重要度、相对概率重要度进行分析排序,找出引起铝合金结构件发生腐蚀失效的主要因素.分析结果表明飞机服役环境、阳极氧化工艺和选材是导致结构件腐蚀失效的主要因素.针对这些主要因素,提出了相应的改进防护措施.
- 飞机结构件 /
- 腐蚀失效 /
- 故障树分析 /
- 最小割集 /
- 概率重要度
Abstract: To analyze corrosion failure of aluminum alloy structures on export airplane used in marine environment, the fault tree analysis was proposed to analyze the erosion factors of aircraft structures. Through investigating and analyzing on failure processes and failure mechanism of structural components of aluminum alloy on airplane, factors which brought on erosion of structural parts were found. Fault tree of corrosion failure was set up and the minimal cut-sets were obtained by Boolean operation, and the top-event occurrence rate was calculated. The probability importance and relative probability importance of bottom events were analyzed and arranged, and then the important bottom events which caused corrosion of aluminum alloy structures were found. Results show that the main factors which caused corrosion of aircraft structures are ocean environment, anodic oxidation and select material. Some improvements with respect to the main factors had been proposed.
- aircraft structure /
- corrosion failure /
- fault tree analysis /
- minimal cut-set /
- probability importance

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参考文献(1)

[1] 黄岭才,谷岸,刘慧丛,等.海洋环境下服役飞机铝合金零件腐蚀失效分析[J].北京航空航天大学学报,2008,34(10):1217-1221 Huang Lingcai,Gu An,Liu Huicong,et al.Corrosion failure of aluminum alloy parts on airplane used in marine environment[J].Journal of Beijing University of Aeronautics and Astronautic,2008,34(10):1217-1221 ( in Chinese) [2] Robinson M J.The role of wedging stresses in the exfoliation corrosion of high strength aluminium alloys[J].Corrosion Science,1983,23(8):887-899 [3] 韩德盛,李荻.LY12铝合金在海洋大气环境下加速腐蚀试验和外场暴露试验的相关性[J].腐蚀与防护,2008,29(1):119-120 Han Desheng,Li Di.Correlation study of accelerated corrosion testing and outfield testing of aluminum alloy[J].Corrosion and Protection,2008,29(1):119-120(in Chinese) [4] Contini S,Cojazzi G G M,Renda G.On the use of non-coherent fault trees in safety and security studies [J].Reliability Engineering and System Safety,2008,93:1886-1895 [5] Dan M Shalev,Joseph Tiran.Condition-based fault tree analysis[J].Reliability Engineering and System Safety,2007,92:1231-1241 [6] 曾声奎,赵廷弟,张建国,等.系统可靠性设计分析教程[M].北京:北京航空航天大学出版社,2001:136-138 Zeng Shengkui,Zhao Tingdi,Zhang Jianguo,et al.Design and analysis of system reliability[M].Beijing:Beijing University of Aeronautics and Astronautics Press,2001:136-138(in Chinese) [7] Dong Yuhua,Yu Datao.Estimation of failure probability of oil and gas transmission pipelines by fuzzy fault tree analysis[J].Journal of Loss Prevention in the Process Industries,2005,18:83-88 [8] Demichela M,Piccinini N,Ciarambino I.On the numerical solution of fault trees[J].Reliability Engineering and System Safety,2003,82:141-147 [9] Rajasekaran B,Raman S G S,Krishnab L R,et al.Influence of microarc oxidation and hard anodizing on plain fatigue and fretting fatigue behaviour of Al Mg Si alloy[J].Surface and Coatings Technology,2008,202(8):1462-1469

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