Based on the concepts of randomness and fuzziness, a fuzzy reliability analysis method of probability density function equivalent is proposed in this article.

依据随机性和模糊性的基本概念，提出了当量概率密度函数的模糊可靠性分析方法。

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For fuzzy reliability analysis with fuzzy failure state and fuzzy safety state, a moment method is proposed to calculate fuzzy failure probability.

针对失效状态和安全状态具有模糊性的模糊可靠性分析问题，提出了一种模糊失效概率计算的矩方法。

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For general reliability analysis with fuzzy failure state and fuzzy safety state, moment method is proposed to calculate general failure probability.

针对失效状态和安全状态具有模糊性的广义可靠性分析问题，提出了一种广义失效概率计算的矩方法。

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