基于故障树的飞机结构腐蚀损伤模糊综合评判

潘波; 姜同敏

基于故障树的飞机结构腐蚀损伤模糊综合评判

潘波,
姜同敏

北京航空航天大学可靠性与系统工程学院, 北京 100191

详细信息

中图分类号: V 37
计量
- 文章访问数: 3488
- HTML全文浏览量: 239
- PDF下载量: 607
- 被引次数: 0
出版历程
- 收稿日期: 2010-08-12
- 网络出版日期: 2012-01-30

Fuzzy comprehensive evaluation of corrosion damage of aircraft structures based on fault tree

School of Reliability and Systems Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 针对飞机结构腐蚀损伤分析和评价过程中影响因素复杂且具有模糊性的问题,提出了基于故障树分析和模糊理论的方法对飞机结构在复杂环境下发生的腐蚀损伤进行综合评判.对飞机结构腐蚀损伤过程和机理进行分析,构建飞机结构腐蚀损伤故障树,建立腐蚀损伤影响因素的评判集;计算各评判因素的相对概率重要度,根据评判因素相对概率重要度的比重,建立评判因素权重集;确定飞机结构腐蚀损伤的评价集,建立从评判因素集到评价集的模糊映射;通过模糊关系的模糊变换,对服役环境引起飞机结构的腐蚀损伤进行定量评价.通过飞机铝合金结构和不锈钢结构在沿海环境条件下腐蚀损伤评判的实例分析,证明了该方法的有效性,可为飞机结构设计和维修提供依据.
- 腐蚀 /
- 故障树 /
- 模糊理论 /
- 综合评判
Abstract: To resolve the complexity and fuzziness of influence on the corrosion damage of aircraft structures, a method based on fault tree analysis and fuzzy theory was proposed to evaluate the corrosion damage of aircraft structures in complicated environments. Fault tree of corrosion damage on aircraft structures was set up by analysis of corrosion process and mechanism, and then the evaluation set of corrosion damage was obtained. Relative importance of evaluation factors was analyzed, and weight set was got by the proportion calculation of relative importance of evaluation factors. After the evaluation grade of corrosion damage has been set up, the fuzzy mapping between evaluation set and evaluation grade was set up. The corrosion damage of service environments on aircraft structures was evaluated quantitatively by fuzzy transformation of fuzzy relation. Finally, corrosion damage evaluations of aircraft aluminum alloy structures and stainless steel structures in coastal environments were illustrated, which demonstrate that the proposed method is valid and can provide evidence for the aircraft structural design and maintenance.
- corrosion /
- fault tree /
- fuzzy theory /
- comprehensive evaluation

HTML全文

参考文献(1)

[1] 刘慧丛,谷岸,朱立群,等.局部包铝层对铝合金疲劳板材盐雾环境中点腐蚀的影响[J].航空材料学报,2009,29(4):52-56 Liu Huicong,Gu An,Zhu Liqun,et al.Influence of partial aluminum clad on pitting of aluminum alloy fatigue samples in NSS [J].Journal of Aeronautical Materials,2009,29(4):52-56(in Chinese) [2] Russo S,Sharp P K,Mills T B,et al.The influence of the environment and corrosion on the structural integrity of aircraft materials [J].Fatigue and Fracture of Engineering Materials and Structures,2009,32(6):464-472 [3] Pitting corrosion of cast metallurgy aluminum-beryllium alloys in sulfuric acid solutions [J].Corrosion,2008,64(6):517-531 [4] Burleigh T D,Ludwiczak E,Petri R A.Intergranular corrosion of an aluminum-magnesium-silicon-copper alloy[J].Corrosion,1995,51(1):1969-2010 [5] Jones K,David W H.Prior corrosion and fatigue of 2024-T3 aluminum alloy [J].Corrosion Science,2006,48(10):3109-3122 [6] 潘波,黄领才,姜同敏,等.服役飞机结构件腐蚀失效故障树分析及改进[J].北京航空航天大学学报,2010,36(3):299-302 Pan Bo,Huang Lingcai,Jiang Tongmin,et al.Fault tree analysis of corrosion failure for aircraft structures and improvements [J].Journal of Beijing University of Aeronautics and Astronautics,2010,36(3):299-302(in Chinese) [7] Savoia M.Structural reliability analysis through fuzzy number approach with application to stability [J].Computers and Structures,2002,80(12):1087-1102 [8] Anoop M B,Rao K B,Rao T.Application of fuzzy sets for estimating service life of reinforced concrete structural members in corrosive environments [J].Engineering Structures,2002,24(9):1229-1242 [9] Reinhard V.On reliability estimation based on fuzzy lifetime data [J].Journal of Statistical Planning and Inference,2009,139(5):1750-1755 [10] 喻西崇,赵金洲,邬亚玲,等.利用模糊综合评判评价注水管道腐蚀程度[J].西南石油学院学报,2003,25(3):79-82 Yu Xichong,Zao Jinzhou,Wu Yaling,et al.Using fuzzycomprehensive judge to evaluate corrosion degree of injecting pipeline [J].Journal of Southwest Petroleum Institute,2003,25(3):79-82(in Chinese) [11] 陶峰,欧阳祖行,刘正埙.用模糊综合评判法评估薄壁容器的寿命[J].南京航空航天大学学报,2000,32(3):299-304 Tao Feng,Ouyang Zuxing,Liu Zhengxun.Evaluation for life on laminal vessel using fuzzy comprehensive decision process [J].Journal of Nanjing University of Aeronautics & Astronautics,2000,32(3):299-304(in Chinese) [12] 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 Astronautics,2008,34(10):1217-1221(in Chinese) [13] Pan B,Jiang T M,Li X Y,et al.Lifetime assessment of aircraft structural components in coastal environments[J].Journal of Aircraft,2010,47(4):1409-1412

施引文献

资源附件(0)

访问统计