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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?/ x9 ]2 M" b/ x5 \) l
$ y8 b' u8 G5 [3 Y; ^
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):
& g7 B, s9 l g3 z车床:
$ \3 F3 E5 {7 V- w7 r9 ` b- ]& taction on finish:
$ T8 W% x$ ]' ^& PIF RANDOM (1) <= 0.05
7 }2 m, F4 U( b/ u P4 z PEN = 1
! m+ a6 I4 P' f; ^5 Q/ ^* r( v C = "pink"
1 w# |5 h0 }8 [; f; h/ o' K# fENDIF % h$ V) k, R7 y3 b; a
) Q( P) s+ ^4 n& ?) W) g1 E' r
铣床:
- W/ a. j# f, V" j% c) T: k3 M9 Jaction on finish: {. O7 Q: G9 U Z% j$ X4 X
IF RANDOM (2) <= 0.05 # X' T7 R \0 b9 ~ Y4 S. x
PEN = 2
) Q: |8 e2 J+ k4 P M" j: o D = "yellow"2 E2 Q& C- ]4 x* f- G+ h
ENDIF ) t- P3 A1 b( Y: ]
1 O' b# U2 K0 x& x
磨床:6 U1 U' L" o9 B9 Q8 m9 J3 M5 O
action on finish:
& u3 x( N$ m: e9 EIF RANDOM (3) <= 0.05 4 ]5 z! X( t9 d/ [! o8 d
PEN =33 b! g& P$ p) y. n
E= "green"& G# K" o* k2 i6 T; N
ENDIF |
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