综合环境下民机机身典型长桁接头疲劳分析

郑晓玲; 鲍蕊; 费斌军

综合环境下民机机身典型长桁接头疲劳分析

北京航空航天大学航空科学与工程学院, 北京 100083

详细信息

作者简介:
郑晓玲(1962-),女,上海人,博士生,XLzheng8@hotmail.com.

中图分类号: V 215.5; O 346.2; V 216.3
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- 文章访问数: 2889
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- 被引次数: 0
出版历程
- 收稿日期: 2006-05-11
- 网络出版日期: 2007-04-30

Fatigue analysis for civil aircraft fuselage typical truss joint in serving environment

School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要

摘要: 采用腐蚀条件下的细节疲劳额定值(DFR)方法对民机机身典型长桁机加接头结构进行了综合环境下的疲劳分析.结合分析过程,给出了由细节模拟试件试验得到的DFR腐蚀影响系数确定结构综合环境的DFR腐蚀影响系数的方法,并采用民机机身长桁机加接头部位模拟试件,完成指定使用情况所对应的预腐蚀-腐蚀疲劳交替验证试验.试验结果与分析结果的对比表明,结果基本一致,综合环境下疲劳分析方法可行.
- 疲劳 /
- 腐蚀 /
- 腐蚀疲劳 /
- 民用飞机 /
- 细节疲劳额定值
Abstract: Fatigue analysis for civil aircraft fuselage typical truss joint in serving environment was discussed, in which detail fatigue rating (DFR) method in corrosive environment was used. A way was presented to determine DFR-corrosion-influence-factor of structural element in serving environment by the DFR-corrosion-influence-factors obtained by tests with detail simulation specimens in typical laboratory environments. A pre-corrosion and corrosion-fatigue alternated experiment, corresponding to a given serving condition, with typical truss joint simulation specimen of civil aircraft was conducted. The comparison between the analysis conclusion and the test result shows the validity of the method.
- fatigue /
- corrosion /
- corrosion fatigue /
- civil aircraft /
- detail fatigue rating

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参考文献(1)

[1] 张建宇,鲍蕊,陈勃,等. 腐蚀环境下疲劳分析的DFR方法研究[J]. 北京航空航天大学学报, 2004, 30(6):547-550 Zhang Jianyu, Bao Rui, Chen Bo, et al. Study on DFR method under corrosive environment for fatigue analysis[J]. Journal of Beijing University of Aeronautics and Astronautics, 2004, 30(6):547-550 (in Chinese) [2] 鲍蕊,张建宇,郑晓玲,等. DFR腐蚀影响系数及其试验测定[J]. 北京航空航天大学学报, 2006,32(6):639-644 Bao Rui, Zhang Jianyu, Zheng Xiaoling, et al. Theoretical and experimental determination of DFR-corrosion-influence-factors [J]. Journal of Beijing University of Aeronautics and Astronautics, 2006,32(6):639-644(in Chinese) [3] 刘文珽,杨洪源,贺小帆.腐蚀条件下民机结构疲劳寿命评定方法研究[J]. 北京航空航天大学学报, 2004,30(8):753-756 Liu Wenting, Yang Hongyuan, He Xiaofan. Evaluation of fatigue lives for civil aircraft structures under corrosive condition[J] . Journal of Beijing University of Aeronautics and Astronautics, 2004,30(8):753-756(in Chinese) [4] 陈群志. 蚀环境下飞机结构日历寿命技术体系研究 .北京:北京航空航天大学飞行器设计与应用力学系, 1999 Chen Qunzhi. Calendar life of aircraft structure under corrosive environments . Beijing:Department of Flight Vehicle Design and Applied Mechanics, Beijing University of Aeronautics and Astronautics, 1999 (in Chinese) [5] 郑晓玲,李令芳. 民机结构耐久性与损伤容限设计手册(上册)疲劳设计与分析[M].北京:航空工业出版社,2003 Zheng Xiaoling, Li Lingfang. Handbook of civil aircraft structures durability and damage tolerance design[M]. Beijing:Aviation Industry Press,2003(in Chinese) [6] Robert P Wei. Corrosion and corrosion fatigue of airframe materials . DOT/FAA/AR-00/22, 2000

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