基于相关算子的城市燃气输配系统FMEA研究  

Study on FMEA of City Gas Transmission and Distribution Pipeline Network Based on Correlation Operator

作　　者：张夏[1] 周伟国[1] 

机构地区：[1]同济大学机械与能源工程学院,上海200092

出　　处：《中国安全科学学报》2013年第7期139-143,共5页China Safety Science Journal

摘　　要：为加强对城市燃气输配管网的安全管理,采用故障模式与影响分析法(FMEA)构建该系统的风险评估体系。其中,针对专家群决策的主观性和不确定性的问题,提出将相关算子引入风险优先数(RPN)的计算中。同时,结合权重分析、专家调查法,得出该系统的5种故障模式的风险优先次序,系统化地分析故障原因及影响,并提出相应的纠正措施。结果表明,引入相关算子可直接对语言变量进行一次计算,定量化地表征故障模式的风险优先次序。In order to improve the safety management of the city gas transmission and distribution pipeline network,FMEA was used to construct a risk evaluation system of the network.To solve the problem of subjectivity and uncertainty of the multi-expert decision making,the correlation operator was introduced into the calculation of the risk priority number.Using FMEA along with weight analysis and expert investigation approach,FMEA evaluation table was given including five failure modes,risk priority numbers,failure causes and effects,as well as corrective actions.The results show that correlation operator can directly process the linguistic variable and quantify the priority of the risks.

关 键 词：燃气输配管网 风险评估 可靠性分析 故障模式与影响分析(FMEA) 相关算子 

分 类 号：X937[环境科学与工程—安全科学]