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| 作者姓名： | 郑晓玲 鲍蕊 费斌军 |
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| 作者单位： | 北京航空航天大学 航空科学与工程学院, 北京 100083 |
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| 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.
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| 关 键 词： | 疲劳 腐蚀 腐蚀疲劳 民用飞机 细节疲劳额定值 |
| 文章编号： | 1001-5965(2007)04-0379-04 |
| 收稿时间： | 2006-05-11 |
| 修稿时间： | 2006-05-11 |
Fatigue analysis for civil aircraft fuselage typical truss joint in serving environment |
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| Zheng Xiaoling,Bao Rui,Fei Binjun.null[J].Journal of Beijing University of Aeronautics and Astronautics,2007,33(4):379-382. |
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| Authors: | Zheng Xiaoling Bao Rui Fei Binjun |
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| Institution: | School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| 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. |
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| Keywords: | fatigue corrosion corrosion fatigue civil aircraft detail fatigue rating |
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