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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The common question how to evaluate product quality reliability, especially with fuzzy-gray characters, in a scientific, effective and convenient way, is confronted by enterprises now.

怎样科学、有效、方便地评价产品质量的可靠性，特别是具有模糊、灰色问题的产品质量问题的可靠性，是目前企业普遍遇到的问题。

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According to the reliability design theory and Fuzzy mathematics theory, put forward a Fuzzy reliability design method of working parameter for plate brake and give some application examples.

从机械可靠性设计理论及模糊数学理论出发，给出了盘形制动器工作参数的模糊可靠性设计方法，并附有应用实例。

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