| 腐蚀条件下飞机结构使用寿命监控 |
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| 引用本文： | 贺小帆,刘文珽,蒋冬滨.腐蚀条件下飞机结构使用寿命监控[J].北京航空航天大学学报,2003,29(3):229-232. |
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| 作者姓名： | 贺小帆 刘文珽 蒋冬滨 |
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| 作者单位： | 北京航空航天大学 飞行器设计与应用力学系 |
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| 摘 要： | 提出了一种腐蚀条件下飞机结构使用寿命监控的方法,以一般环境下疲劳定寿结论和预期日历寿命指标为前提,考虑地面停放预腐蚀和空中腐蚀疲劳的影响,综合腐蚀条件下疲劳寿命监控和日历寿命指标控制,通过建立监控目标函数,对飞机结构的首翻、大修和总寿命进行监控,保证飞机的合理使用和适时大修,并考虑了飞机在服役过程中转场情况.给出了一个计算实例.
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| 关 键 词： | 腐蚀 疲劳寿命 使用寿命 日历寿命 监控 |
| 文章编号： | 1001-5965(2003)03-0229-04 |
| 收稿时间： | 2001-09-29 |
| 修稿时间： | 2001年9月29日 |
Service Life Supervision for Aircraft Structures under Corrosive Environment |
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| He Xiaofan,Liu Wenting,Jiang Dongbin.Service Life Supervision for Aircraft Structures under Corrosive Environment[J].Journal of Beijing University of Aeronautics and Astronautics,2003,29(3):229-232. |
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| Authors: | He Xiaofan Liu Wenting Jiang Dongbin |
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| Institution: | Dept. of Flight Vehicle Design and Applied Mechanics, Beijing University of Aeronautics and Astronautics |
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| Abstract: | A method for supervising the service life of aircraft structures under corrosive environment was developed. Based on the evaluation results of fatigue life at room temperature and in the air and the expected calendar life index, considering the influence of pre corrosion under ground environment and the corrosion fatigue during flight, an objective function was established to supervise the inspection threshold, overhaul intervals and total life. Fatigue life supervision and calendar life supervision were unified by this function. In addition, significant corrosive environment change was considered. As an example, a practical supervising process was given to demonstrate the application of this method. |
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| Keywords: | corrosion fatigue life service life calendar life supervision |
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