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在直观模糊环境下对个人落拦截系统的故障模式和效果分析
Fakhradin Ghasemi1, Jamshid Rahimi2
1Occupational Health and Safety Engineering Department, Abadan University of Medical Sciences, Abadan, Iran.
Heliyon
|June 14, 2023
概括
直觉模糊集 (IFS) 增强了个人防摔系统 (PFAS) 的故障模式和效果分析 (FMEA). 该IF-FMEA方法有效处理不确定性,并识别PFAS组件中的关键故障模式.
科学领域:
- 工程 工程师 工程师 工程师
- 风险管理 风险管理
- 模糊的集合理论 模糊的集合理论
背景情况:
- 经典的模糊集合理论在处理不确定性方面存在局限性.
- 直觉模糊集 (IFS) 为不确定性管理提供了一个更强大的框架.
- 故障模式和影响分析 (FMEA) 对于安全系统评估至关重要.
研究的目的:
- 通过IFS和集团决策 (IF-FMEA) 开发FMEA的新方法.
- 使用拟议的IF-FMEA方法调查个人防摔系统 (PFAS) 的故障模式.
主要方法:
- 重新定义的FMEA参数 (发生,后果,检测) 使用七点语言尺度.
- 与直觉三角模糊集相关的语言术语.
- 综合专家意见使用相似性聚合和使用重心方法去模糊.
主要成果:
- 使用FMEA和IF-FMEA识别和分析了PFAS中的九种故障模式.
- 与传统的FMEA相比,IF-FMEA产生了不同的风险优先级号码 (RPN) 和优先级.
- 车网故障的RPN最高,而杆D环故障的RPN最低.
- 金属PFAS部件的更高检测分数表明它们更难被检测.
结论:
- 拟议的IF-FMEA方法是有效的,经济的,在处理不确定性方面优越.
- 不同的PFAS成分存在不同的风险水平.
- 基于IFS的FMEA提供了更细致的安全系统风险理解.
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