基于FMECA方法的车用燃料电池发动机风险评估Failure evaluation of vehicle fuel cell engines based on FMECA
潘建欣,何书默,肖敏,胡梅,谢晓峰
摘要(Abstract)：
在新能源汽车燃料电池发动机的产品开发过程中,对燃料电池发动机开展有效的风险评估对产品可靠性提升具有重要作用。今借助于失效模式影响及严重度分析(FMECA)方法对燃料电池发动机进行了风险评估。以某型燃料电池发动机样机为例,建立因素集、因素水平集、模糊因素水平评价矩阵、影响因素权重集等评估流程,利用模糊数学工具将FMECA的评价指标予以量化替代传统定性分析,避免了主观评价方法的随意性。运算得到一级模糊综合评价和综合危害等级,对该发动机9种典型失效模式的严重度评估和排序。分析结果与工程实践有较好的一致性,表明FMECA是一种适合燃料电池发动机可靠性开发过程中的风险评估方法。
关键词(KeyWords)： 燃料电池发动机;FMECA;风险评估;模糊数学工具
基金项目(Foundation): 国家重点研发计划(2017YFB0103000)
作者(Author): 潘建欣,何书默,肖敏,胡梅,谢晓峰
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