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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?9 L; F W3 G$ C+ y. z& i
$ \% W% |" i( s; V
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):
/ V% `2 t# |7 o9 l! W2 u. G/ o* |6 J车床:
, e, W) q2 |% qaction on finish:- t& x. n1 _" m) `8 C
IF RANDOM (1) <= 0.05
: p% O; t& r1 A/ C( h PEN = 1
, d6 i% H! G( q* q2 K5 f C = "pink"
* d+ F9 N$ t5 e: g. eENDIF ' q: v2 }/ p# L0 c4 Q# e; f6 m4 ~
& d5 f" g* G4 g- U+ L铣床:: b( K7 m" L* i" `
action on finish:4 {+ I6 y$ X1 `/ j' _
IF RANDOM (2) <= 0.05
. X9 R* r, t( t" _% D: G6 i% R PEN = 28 |" V9 E. I" L7 {+ z
D = "yellow"
. \+ y$ C, D1 v* z1 a. F$ B) _+ IENDIF
! g; Q6 `. W# f( {6 f6 e( E4 w" [$ N6 N; o/ D: \/ S
磨床:" S/ S" a; m( D) M* j" y
action on finish:- w# S, r1 c3 V& ?0 O
IF RANDOM (3) <= 0.05 5 d% j7 U e j1 G! t5 n5 T
PEN =3
! Y7 `' t4 o ?: \' j E= "green"
, O! t6 J# J" y; y7 h' f) YENDIF |
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