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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,
( G: v/ }2 P5 w7 o  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.
3 B9 H. c: M" ^/ v5 G  Loads are processed by each operator for the following time:
- A5 f% |! P+ p$ ?  F  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
9 _, ^1 }7 Y8 D4 j5 O. J! E  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.$ I- Z6 ~- I1 w1 H
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.8 s4 q; V/ _9 g3 y
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.# S. q8 f* q/ _+ [# Z, N- i2 W

* }6 v: o( ?0 r* A- F问题:$ {* q* `3 Q) f; B
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
* G! M/ I9 [% x7 I, p$ E( ~move into Q_wait /*Capacity is infinte*/
3 H* B  Y0 E3 \' d- u1 F  {move into Q_process /*Single capacity*/
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+ l' t* `- _8 v/ q4 c4 Huse R_A for n 60,10 min /*Resource A*/. D/ V  R$ A+ h3 x0 C1 q, c0 X
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send to P_B0 K& O! F  g) V) W# y3 N: p1 E
end9 p" C' ]7 d! P+ v2 p
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P_B and P_C is similar. e% S+ a7 ?' m* @( V
triangular 30,60,90 min, v' L+ J+ l& o- ]% e2 R
u 60,30 min
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in P_C, you need to send to die.
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+ n. H0 `( Z3 w2 E5 g/ B' dThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.5 X. a& t9 e5 r# t% p

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* `1 b9 s( d1 t  _# P% JRemember 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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