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。
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.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1992年第3期A219-A222,共4页
Acta Aeronautica et Astronautica Sinica
关键词
结构系统
失效概率
近似公式
structural systems, failure probability, approximate formula
