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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,
! ~+ _. H2 \! q$ N# D7 H8 t! u/ d* h& L# }  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.
* Y+ X/ `' k, O$ U+ Z0 Y  Loads are processed by each operator for the following time:
3 I' V! n/ S; v5 S# w2 ~  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.; C( n! D9 j0 S8 S5 v  k4 _4 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.( a% W, `4 Z' W0 ^) i, c
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
9 D) i4 B0 k' VSend 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.! |+ ]- Y6 s8 n. Q

3 U+ K8 Y2 g% z& o$ n& D4 u问题:
; c; c% ~" T" E/ ^After running the model for 10,000 days, what was the average number of loads in each process?
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8 x  y* n" ^$ t2 q: L1 |+ z不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving) I4 X  P' S, M1 x
move into Q_wait /*Capacity is infinte*/
+ l, h/ U' B9 a6 n: ]7 n6 F* t- Imove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/& b( V  B" G; t. o, A
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send to P_B) E6 F- d' Q& o( z
end
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+ ?4 `3 g) F5 T% q2 M3 nP_B and P_C is similar. n* A8 _$ k4 n5 e
triangular 30,60,90 min
; [1 s; [$ I! Eu 60,30 min
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  Q' }3 l" P- i0 ]in P_C, you need to send to die.
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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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Remember 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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