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有三台设备,分别是车、铣和磨。每一台设备的质量合格率为0.95,不合格品进入下一道设备加工,那么最终输出的质量应该是0.95^3到0.95之间,请问哪位大侠帮看看用Witness怎么仿真?, }# ?+ r% A/ `& }1 s
$ w2 H7 w$ f c, s
我自己参考别人的仿真(但是输出的结果变化不在0.95^3到0.95之间,请问错在哪里):# c( B2 E8 B& w3 o. G
车床:
6 I) ^# e9 ]: Z& caction on finish:
' R4 M/ n* x2 {0 uIF RANDOM (1) <= 0.05 + M' o/ M: d0 W9 b5 [9 Z) M2 X
PEN = 1
6 v, b7 t' U9 T G% k. \3 e C = "pink"
( `! [) V P/ L+ yENDIF 0 `( _* Q& T2 D( u
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铣床:
1 S1 }; {8 _8 W' `, \- kaction on finish:/ _9 o. i3 P& g5 I; ]3 U4 v7 f2 I
IF RANDOM (2) <= 0.05
0 C K% H4 j9 n& c+ y8 a+ y PEN = 2
: }& h6 F0 t F8 U D = "yellow"$ r3 V) K/ w! \5 K" r& k/ m
ENDIF / D4 d4 R+ I. L5 i, m3 G9 l
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磨床:" D1 @. z3 E/ h3 o
action on finish:6 `3 b# D! ~, g
IF RANDOM (3) <= 0.05
/ x8 Z3 }4 X; t- g" ?" Z- P PEN =3) C0 @5 T! n+ G3 a5 s
E= "green"
' H( g! H4 x7 `/ B7 SENDIF |
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