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Grey Fuzzy Relational Analysis for Fuzzy Fault Tree of Ship Grounding
Author(s): 
Pages: 83-88
Year: Issue:  3
Journal: Navigation of China

Keyword:  waterway transportationgrey fuzzy relationalfuzzy fault treenormal fuzzy numberfuzzy significancestructure-probability importance degreeship grounding;
Abstract: 为解决应用传统故障树方法分析船舶搁浅事故时带有不可避免的灰色性和模糊性的问题,在分析船舶操纵性搁浅故障树的基础上,对底事件发生概率进行模糊化,建立船舶搁浅模糊故障树.引入灰色模糊关联分析方法,对模糊故障树进行定性和定量分析,根据故障树的最小割集、底事件的结构概率重要度和模糊重要度,计算各故障模式与顶事件的关联度,关联度越大,说明其对顶事件发生的影响越大.最后,综合考虑各底事件在关联度较大的最小割集中的分布情况及其模糊重要度情况,找出对顶事件发生的影响较大的底事件和故障模式,为降低顶事件发生概率制定相关风险控制措施提供参考依据.
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