Analysis of Fault Tree Base on Uncertainty Measure

Based on uncertainty measure theory, this paper proposes a method that constructs and analyzes fault tree. In fault tree this paper, it would be characterized as crisp number if fault rate of bottom event is obtained from reliable handbook, empirical data and so on; it would be characterized as uncertain variable if fault rate of bottom event has no statistical data but is obtained from experts subjective judgment The expected value of overall systems top event is calculated by using uncertain simulation technology. Finally feasibility and validity of this method is confirmed by taking fault tree of internal combustion engine as example.
fault tree uncertainty measure uncertain variable expected value top event
Jianjun Liu
Department of Computer Dezhou University Dezhou Shandong China
国际会议
太原
英文
358-361
2010-10-22(万方平台首次上网日期,不代表论文的发表时间)