| 基于模糊逻辑的安全苛求系统失效模式与影响分析研究 |
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| 引用本文： | 袁峰,陈邦兴,祝玉军,向侯鹏. 基于模糊逻辑的安全苛求系统失效模式与影响分析研究[J]. 计算机应用与软件, 2011, 28(12) |
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| 作者姓名： | 袁峰 陈邦兴 祝玉军 向侯鹏 |
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| 作者单位： | 同济大学电子与信息工程学院 上海201804 |
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| 基金项目： | 国家自然科学基金(61075002); “十一五”国家科技支撑计划(115-05-YK-060) |
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| 摘 要： | 针对传统RPN(风险优先数)方法在安全苛求系统FEMA(失效模式与影响分析)过程中的不足,提出一种基于FRPN(模糊风险优先数)的新方案,即运用模糊逻辑理论进行定量的FMEA。通过运用模糊加权几何平均计算失效模式的FRPN,据此对失效模式的风险程度排序,寻找影响系统安全性的主要因素,并将其作为改善对象。最后将该方法应用到高速铁路列控系统的FMEA过程中,结果表明,所提出的FRPN方法比传统RPN更加科学严谨,更能紧密联系应用环境,具有较高的科学性和实用价值。
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| 关 键 词： | 失效模式与影响分析 模糊加权几何平均 模糊风险优先数 安全苛求系统 |
FUSSY LOGIC BASED SAFETY CRITICAL SYSTEM FAILURE MODES AND EFFECTS ANALYSIS RESEARCH |
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| Yuan Feng,Chen Bangxing,Zhu Yujun,Xiang Houpeng. FUSSY LOGIC BASED SAFETY CRITICAL SYSTEM FAILURE MODES AND EFFECTS ANALYSIS RESEARCH[J]. Computer Applications and Software, 2011, 28(12) |
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| Authors: | Yuan Feng Chen Bangxing Zhu Yujun Xiang Houpeng |
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| Affiliation: | Yuan Feng Chen Bangxing Zhu Yujun Xiang Houpeng(School of Electronics and Information Engineering,Tongji University,Shanghai 201804,China) |
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| Abstract: | Due to traditional RPN's(Risk Priority Number) incapability in the Safety Critical System's FEMA process,an FRPN-based new scheme is put forward.It uses the fuzzy logic theory to carry out quantitative FMEA;then uses fuzzy weighted geometric mean to calculate FRPN of failure modes to queue failure modes by their risk priority;then searches for major elements that influences the system security and regards them as targets to improve;finally applies the method to FMEA process of high-speed railway train contr... |
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| Keywords: | Failure modes and effects analysis Fuzzy weighted geometric mean Fuzzy risk priority number Safety critical system |
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