触电事故的事故树.docx

文档介绍：作业人员触电事故的事故树
作业人员触电事故的事故树
该事故树的结构函数式为：T = A]A2
T = ( X + B + B )( X + X + X )
1 2 5 6 7
= [X +X ( X +X +X ) +C +C +C +C ]( X +X +X )
4 19 1 2 3 1 2 3 4 5 6 7
= [X +X ( X +X +X ) +X ( X +X ) X + X ( X +X +X )
4 19 1 2 3 8 9 10 20 21 11 12 13
+ X X ( X +X ) + ( X +X ) ]( X +X +X )
14 15 16 17 18 5 6 7
=(X +X X +X X +X X +X X X +X X X +X X +X X +
4 1 19 2 19 3 19 8 9 20 8 10 20 21 11 21 12
X X +X X X +X X X +X +X )(X+X+X)
21 13 19 14 15 19 14 16 17 18 5 6 7
= X4X5+X1X19X5+X2X19X5+X3X19X5+X8X9X20X5+X8X10X20X5
21 11 5 21 12 5 21 13 5 19 14 15 5 19 14 16 5 17
+X X X +X X X +X X X +X X X X +X X X X +X X
18 5 4 6 1 19 6 2 19 6 3 19 6 8 9 20 6
+X X +X X +X X X +X X X +X X X +X X X X
8 10 20 6 21 11 6 21 12 6 21 13 6 19 14 15 6
+X X X X +X X X +X X X +X X X +X X X X
+X19X14X16X6+X17X6+X18X6+X4X7+X1X19X7+X2X19X7+X3X19X7
+X X X X +X X X X +X X X +X X X +X X X
8 9 20 7 8 10 20 7 21 11 7 21 12 7 21 13 7
+X X X X +X X X X +X X +X X
19 14 15 7 19 14 16 7 17 7 18 7
该事故树共有39 个最小割集，分别为：
K1 = {X4,X5}
K4 ={X3,X5,X19}
K = {X ,X ,X }
7 21 11 5
K ={X ,X ,X ,X }
19 14 15 5
K = {X ，X }
18 5
K ={X ,X ,X }
2 19 6
K ={X ,X ,X ,X }
19 8 10 20 6
K = {X ,X