首页 | 本学科首页   官方微博 | 高级检索  
     检索      

基于梯形模糊数的长输管道故障树分析
引用本文:俞树荣,杨慧来.基于梯形模糊数的长输管道故障树分析[J].兰州理工大学学报,2009,35(5).
作者姓名:俞树荣  杨慧来
作者单位:兰州理工大学,石油化工学院,甘肃,兰州,730050
摘    要:针对长输管道底事件和中间事件发生概率情况获取不足的现状,将模糊集合论引入故障树分析法中,将事件发生概率描述为模糊数和模糊可能性,提出一种基于梯形模糊数算术运算的长输管道故障树分析方法,阐述将各种模糊数转换成梯形模糊数的途径.通过对长输管道进行模糊故障树分析,得到顶事件发生概率.用模糊重要度法对故障树基本事件进行排序.结果表明:为提高系统可靠性,应主要改善自然灾害及其他外力.

关 键 词:长输管道  故障树分析  模糊集合理论  梯形模糊数

Fault tree analysis of oil and gas pipe-lines with trapezoidal fuzzy number
YU Shu-rong,YANG Hui-lai.Fault tree analysis of oil and gas pipe-lines with trapezoidal fuzzy number[J].Journal of Lanzhou University of Technology,2009,35(5).
Authors:YU Shu-rong  YANG Hui-lai
Institution:YU Shu-rong,YANG Hui-lai(College of Petrochemical Engineering,Lanzhou Univ.of Tech.,Lanzhou 730050,China)
Abstract:Aimed at present situation of insufficiency of data acquisition of fault probabilities of the bottom and intermediate events,the fuzzy set theory was introduced into fault tree analysis method,where the probabilities of the events were described as fuzzy numbers and fuzzy possibilities,a fault tree analysis method of oil and gas pipelines was proposed based on arithmetic operation of trapezoidal fuzzy numbers,and several methods to transform various kinds of fuzzy number into trapezoidal ones were discussed...
Keywords:oil and gas pipelines  fault tree analysis  fuzzy set theory  trapezoidal fuzzy number  
本文献已被 CNKI 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号