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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?
4 j5 C2 Z# i) _% d8 m3 \
; u% i6 y% b8 b+ F4 x& m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):
* y- z, ^9 r4 X- s8 R( ^车床:
v9 l" ]2 U% o; s. |action on finish:
) {- t' j, A; \* p1 `' _IF RANDOM (1) <= 0.05 * A# u/ q. M; o) v; a. x' S7 x
PEN = 1
8 C! m7 _, L+ ^# T C = "pink"
* C8 r7 s: [% x3 f. H$ @ENDIF 7 H4 I% ^ d1 W( C; z
1 ?3 [/ O. P. C7 f: n+ e铣床:, r" f. S5 w: h
action on finish:
: _+ U2 x( [4 z aIF RANDOM (2) <= 0.05
- N5 W$ m- {* W- a. | PEN = 2
8 y" u- O9 Y5 f' \3 v5 n( e D = "yellow") j9 ?: U( g7 g1 U8 |& M" C' |- M
ENDIF
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9 z$ v, y& h& @1 V! ]0 I j. g8 b! N磨床:
& k" q9 u. m4 _; a9 |' e" j5 Uaction on finish:
1 h3 r+ m" y* ?3 UIF RANDOM (3) <= 0.05 % s0 ~; E9 E) i' Y, z ?
PEN =3% M* {4 J* B" r6 g' m
E= "green"
7 x5 n3 F0 g( c+ _: E) O3 aENDIF |
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