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[求助] 本人初学auto mod,有一道题目希望大家赐教

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发表于 2009-10-3 15:08:34 | 显示全部楼层 |阅读模式
刚刚开始学auto mod,这道题目搞不明白,希望大家看看 题目是这样的,
8 N8 E  i! N1 s7 @' X# ]  Create a new model containing three independent processes, each with one operator. In each process, loads first move into an infinite capacity waiting queue, then into a single-capacity processing queue.
$ j+ g9 E) u$ F" d0 }5 J" G  q6 o. [  Loads are processed by each operator for the following time:
5 V( b$ l' f# Y+ w2 O$ V$ {' U# X  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.% w$ Y0 i* W. e; n' l% p
  Worker_B does the job according to a triangular distribution with a min of 30 mins, most likely value of 60 mins, and a max of 90 mins.
# @; w2 H3 z! z( q  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.7 Q5 D: V' h2 m  E$ v! P. W: C
Send loads to each pocess at the same rate (an exponentially distributed inter-arrival time with a mean of 68 mins) to understand the difference in the processing times of the three workers.. @! [. T- {$ L. v. c( `; I- \' F! w) s; _

, W+ Q( B9 i  K& e+ U" z) J问题:. K( D6 @) Y. c8 j" G$ [
After running the model for 10,000 days, what was the average number of loads in each process?
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不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
& s' y4 v4 C5 P+ ?move into Q_wait /*Capacity is infinte*/
: w4 \  N0 n, H5 m/ }) O. Xmove into Q_process /*Single capacity*/
6 r1 A7 M" t' f% q& j4 Z# ]
4 D. i5 s  k2 t9 L7 [0 Guse R_A for n 60,10 min /*Resource A*/
  b+ r% b: c5 d* z- g8 n9 M5 @& m2 e9 `7 R. p5 E) T' u
send to P_B
5 \; l1 r7 p1 w+ send: v% _* \! |) _2 n% }1 D! i
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P_B and P_C is similar, O9 H- E/ c2 F1 ]/ }- O4 @
triangular 30,60,90 min
( H% x  y- K4 K* _7 i' Cu 60,30 min
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& w! R' N5 w( n9 O# b/ I
8 P% N! J' B% E7 b" c5 I6 iin P_C, you need to send to die.  A6 Q, m. L9 ]8 ^) k  I
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Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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; E0 ^9 A3 a+ Q+ }4 V8 d0 cRemember to turn off the animation before you run your model.

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 楼主| 发表于 2009-10-27 23:53:02 | 显示全部楼层
thanks...
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