| 结构系统失效概率的近似分析 |
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| 引用本文： | 蔡荫林,周健生.结构系统失效概率的近似分析[J].航空学报,1992,13(3):219-222. |
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| 作者姓名： | 蔡荫林 周健生 |
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| 作者单位： | 哈尔滨船舶工程学院航天工程系 哈尔滨 160001 |
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| 摘 要： | 提出用一阶简单边界的上、下界来估计结构系统失效概率的近似公式。它考虑了结构系统失效模式之间的相关性但仅包含失效模式的一阶概率。算例表明,通常最大误差在5％以内,精度高而计算简便。
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| 关 键 词： | 结构系统 失效概率 近似公式 |
| 收稿时间： | 1991-03-07 |
| 修稿时间： | 1991-08-05 |
APPROXIMATE ANALYSIS FOR FAILURE PROBABILITY OF STRUCTURAL SYSTEMS |
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| Cai Yin-lin,Zhou Jian-sheng.APPROXIMATE ANALYSIS FOR FAILURE PROBABILITY OF STRUCTURAL SYSTEMS[J].Acta Aeronautica et Astronautica Sinica,1992,13(3):219-222. |
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| Authors: | Cai Yin-lin Zhou Jian-sheng |
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| Institution: | Department of Aerospace Engineering, Harbin Shipbuilding EngineeringInstitute, Harbin, 150001 |
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| Abstract: | An approximate formula using the lower and upper bound of the first simple bounds for estimate of the failure probability of structural systems is presented in the paper. In the approximate formula, the correlation between each of the two failure modes of the structural systems is considered but only the first failure probability of the failure modes is contained. Numerical examples are provided to demonstrate that the error is quitesmall. Usually the maximum error is within five per cent. The approximate formula possesses quite high accuracy and the computation is simple and convenient. |
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| Keywords: | structural systems failure probability approximate formula |
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