| 结构使用寿命评定的功能失效概率控制方法 |
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| 引用本文： | 刘小冬,刘文珽.结构使用寿命评定的功能失效概率控制方法[J].北京航空航天大学学报,2002,28(1):105-108. |
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| 作者姓名： | 刘小冬 刘文珽 |
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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： | 提出了结构关键件功能失效概率、单机功能失效概率和机群功能失效概率的概念.以二项分布为基础,建立了从结构关键件功能失效概率、单机功能失效概率直至机群功能失效概率分析计算模型,并建立了基于功能失效概率控制的结构修理时间确定和使用寿命评定方法,给出了型号结构使用寿命评定计算分析实例.
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| 关 键 词： | 飞机 耐久性设计 使用寿命 失效概率 功能失效 |
| 文章编号： | 1001-5965(2002)01-0105-04 |
| 收稿时间： | 2000-07-11 |
| 修稿时间： | 2000年7月11日 |
Structural Function Failure Probability Control Method for Service Life Estimation |
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| LIU Xiao-dong,LIU Wen-ting.Structural Function Failure Probability Control Method for Service Life Estimation[J].Journal of Beijing University of Aeronautics and Astronautics,2002,28(1):105-108. |
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| Authors: | LIU Xiao-dong LIU Wen-ting |
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| Institution: | Beijing University of Aeronautics and Astronautics, Dept. of Flight Vehicle Design and Applied Mechanics |
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| Abstract: | Notions of probability of structural function failure, probability of function failure for one aircraft and probability of function failure for a fleet are presented. Based on the binomial distribution, a calculating model of structural function failure probability for a durability critical component, one aircraft and a fleet is established. It accounts for structural maintenance procedure after a certain service time. An analytical method capable of determining the repair maintenance time and estimating the service life for aircraft structures is developed based on the function failure probability control. A practical aircraft structural service life estimation, as an example, to demonstrate the application of the methodology is given. |
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| Keywords: | airplanes durability design service life failure probability function failure |
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