针对传统FMEA方法存在无法综合评定故障后果，缺乏量化评价指标的局限性。本文以传统的FMEA理论为基础，提出一种基于模糊评价与灰色关联度的动力定位FMEA方法。首先应用模糊集理论来建立评价故障模式下的模糊术语集和相对应的模糊数，再根据灰色关联理论计算各个故障模式的关联度，最后利用计算结果确定各个故障模式的风险排序。结果表明，相较于传统FMEA，本文方法综合考虑发生频率、严重度和难检测度的权重，更具有有效性和可行性。
To aim at the limitations of traditional FMEA method which can't conduct comprehensive evaluation on failure consequence and lacks quantified evaluation indicators. In this paper, on the basis of traditional FMEA theory, we propose a Dynamic Positioning FMEA Method which based on Fuzzy Evaluation and Grey Relational Grade. Firstly, the fuzzy set theory is applied to establish fuzzy linguistic term and corresponding fuzzy number in failure mode, and according to grey relational grade, we calculate the relevancy of each failure mode. Finally, we determine the risk ranking of all failure mode by the calculations. The results show the method considers the weight of Occurrence Probability Ranking, Effect Severity Ranking and Detection Difficulty Ranking comprehensively, it is more effective and feasibility.
2017,(): 134-138 收稿日期：2016-11-02
DOI：10.3404/j.issn.1672-7649.2017.12.028
分类号：U472.42
基金项目：江苏高校高技术船舶协同创新中心资助项目（HZ2016006）
作者简介：何祖军(1964-),男,教授,研究方向为海洋工程信息系统与装备自动化、船舶综合控制技术、计算机应用技术
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