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针对目前提升机盘式制动系统进行可靠性分析时存在的数据不足和环境模糊性及数据的不精确性的问题,将模糊集合理论引入到提升机盘式制动器的故障树分析中,用三角模糊数刻画提升机盘式制动系统事件发生的概率,建立了模糊故障树,较好地解决了事件概率值不精确的问题。
Aiming at the problems of data insufficiency, ambiguity and inaccuracy of data in the reliability analysis of hoist disc brake system at present, the fuzzy set theory is introduced into the fault tree analysis of hoist disc brake, The fuzzy number characterizes the probability of the occurrence of the event of the disc brake system of the hoist and establishes the fuzzy fault tree, which solves the problem of inaccurate event probability value.