中文摘要：

针对具有多失效模式的结构系统，考虑失效模式间的相关关系，应用蒙特卡罗法（monte_carlo）求解具有多失效模式的结构系统的失效概率，给出计算框图和计算步骤。利用MATLAB软件的概率统计工具函数对随机变量进行抽样模拟。通过实例计算比较了窄界限法与蒙特卡罗法，分析了蒙特卡罗法在求解多模相关结构可靠性问题中的优点。

英文摘要：

In connection with the structural system of MFM （Multi failure mode） and the correlation among MFM, by Monte Carlo method, failure probability in the system of MFM is solved and the calculation diagram and calculation steps are given. By means of the probability and statistics function in Mat lab, the sample of random variables is simulated. With the example calculated, the narrow limit method is compared with the Monte Carlo method, the merits of the Monte Carlo method is analyzed in solving the reliability issues of the structure of multi-mode.