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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?# l& E- Y' Q6 Y) r" [# p" _3 e
) d( e$ f5 Z! \( \* E: e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):0 \4 X3 b g+ d3 X
车床:& `( G. B' t+ y
action on finish:
1 m7 a$ u- `& v- QIF RANDOM (1) <= 0.05 ( m) A$ f( l7 ^ ^9 l' K' i
PEN = 1. X1 k! g4 c# J5 c* {
C = "pink"$ t3 O' Y, Z3 n# F1 \
ENDIF
2 e1 X4 {4 a! w$ A$ K; e; o+ R9 ?
4 ]& L5 z$ q% k6 i铣床:
# ^+ B& I; A, b B, I9 C; l6 @1 |action on finish:
* {( m: P9 Y, t: `1 f. w5 `IF RANDOM (2) <= 0.05 % b% Z# f9 {' a6 ]7 H6 Q
PEN = 2
' Z; _) C6 h. y3 U7 ~ D = "yellow"
- z$ ?5 ` P4 u8 \% QENDIF ; Q: w' k7 R! N2 {
6 R4 e7 C0 p+ z9 h
磨床:
/ u9 o5 p9 h/ N5 o2 o2 Gaction on finish:
4 j# E% i5 ~( |8 T, I6 PIF RANDOM (3) <= 0.05
3 @+ K& D/ w9 O+ e, U# B3 i PEN =3
{& v( R, C! B" Q6 j5 q E= "green"/ Z0 O- O' L. Y- l! j
ENDIF |
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