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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,
$ Z! r% \* ]4 ^2 M  A  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., I6 y; B7 W! I. T
  Loads are processed by each operator for the following time:4 t$ ~- s1 R& w0 F% ~
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins./ t8 Z3 i/ s+ z3 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., _: ~, G& x5 u5 Y9 V  l, V' O0 V
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.6 @  t: `% @- `, ?
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.5 D+ L  y. ~: E' v8 F$ s

+ ?8 Y) _% y9 _+ o# E) I1 J问题:" |2 V) v4 P3 z$ Z* ~8 c
After running the model for 10,000 days, what was the average number of loads in each process?
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" \4 s4 L; z( f) ?6 n% D不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving/ y( k& r+ C3 V4 _
move into Q_wait /*Capacity is infinte*/  Y4 a. w1 x: E
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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send to P_B- S4 Q6 p$ \; [- ^
end7 U1 G8 d: W2 f% @) U5 g* |/ _( j

$ z, K$ _% h2 l! EP_B and P_C is similar
1 A2 s. z/ z3 k7 W7 ?9 ~triangular 30,60,90 min
$ G) W% l7 k7 L7 Ju 60,30 min+ X' z  U% I! e
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7 F, E; l9 K7 v/ _0 fin P_C, you need to send to die.' I3 Z, s1 C. z" N7 a
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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.  m2 T  Q! C, e: t' [! h

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( j. E) Q9 E1 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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