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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? F( z% s; X! X1 b( ~
' E/ P) H& K2 H3 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):
% O& c v3 }7 d; z8 j车床:4 G$ c! v, _, S, V; t
action on finish:
/ t7 c& m4 N/ d2 u% }" \IF RANDOM (1) <= 0.05 $ s! F% w% {) ~# p; t3 h2 Z
PEN = 1
! ?5 A# K. Y3 Z% X! ` C = "pink"( _4 [7 v1 R1 `" N! F
ENDIF
* I# N0 `# @: a( X" [! J. o, N& ?) v: L# p) l" O$ ^
铣床:
9 o6 l' e4 D, uaction on finish:
. d3 Y0 d6 z; ^IF RANDOM (2) <= 0.05 / L( }3 ` a8 Z. }! B5 k+ p
PEN = 2# m9 a% j6 W& C
D = "yellow"
% p2 p- k( e3 B" s, \9 K% m4 MENDIF
0 W6 `& V/ w/ t7 j5 i. b( [5 ~1 g9 O9 o7 t8 y4 n0 [
磨床: O0 V! |, S p$ L/ _& w
action on finish:9 g5 w( ~3 X+ J6 J
IF RANDOM (3) <= 0.05 3 Z9 d2 i4 d& x: q
PEN =37 g( {9 |6 v6 N, {
E= "green"/ e8 V) O, @9 U- B
ENDIF |
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