摘要
针对使用多元影响因素和模糊评价数据对电气系统进行可靠性评价的问题，选择两个重要因素：工作时间（t）和工作温度（c）对各个元件的可靠性进行分析．同时根据模糊语义构建各元件在t和c两方面发生故障概率的隶属度函数．在此基础上用事故树表示系统结构并进行化简，得到考虑数据模糊的t和c二元因素影响的系统模糊故障概率分布．引入模糊语义划分，最后得到系统模糊故障概率在t和c平面上的三个模糊划分类．方法可以分析二元甚至多元因素影响条件下，电气系统模糊故障概率分析的特征，进而研究其系统可靠性．
According to the electrical system reliability problem evaluated with the multiple factors and fuzzy data, the paper analyzes the reliability of each component considering work time （t） and working temperature （c）. The failure probability of membership function of t and c are constructed with the fuzzy semantic. And then system structure is described by fault tree. Through the fault tree to simplifying the system structure, the system fuzzy failure probability distribution considering fuzzy t and c is obtained. Introducing the fuzzy semantic division, Finally get the three fuzzy partition class of the system fuzzy failure probability in the plane with t and c. Under the condition of two factors even multiple factors, the method can analyze the characteristics of electrical system fuzzy failure probability and then study its system reliability.
作者
王道临
崔铁军
马云东
WANG Dao-lin;CUI Tie-jun;MA Yun-dong(College of Safety Science and Engineering, Liaoning Technical University, Fuxin 123000, China;Key Laboratory of Mine thermodynamic Disasters and Control of Ministry of Education, Fuxin 123000 China;Tunnel＆ Underground Structure Engineering Center of Liaoning, Dalian Jiaotong University, Dalian 116028 China)
出处
《数学的实践与认识》
北大核心
2018年第10期280-284,共5页
Mathematics in Practice and Theory
关键词
事故树
模糊理论
二元因素
系统分析
故障概率分布
fault tree
fuzzy theory
two factors
space distribution of probability
System analysis
