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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,+ J. J" o1 n: 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.
! X  \" O& k3 B7 O5 D: G  Loads are processed by each operator for the following time:
$ K8 O$ t- `( v# c0 h  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
  _" Q# h* M/ b7 ]3 X. \' z3 B/ r! 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.! ?2 q% T+ u4 l
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.% M; e# O! X$ a
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.
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* ~; ?' I& |* b5 U; g* j8 j1 t, i问题:
( k, ]+ f; c/ G2 L2 gAfter running the model for 10,000 days, what was the average number of loads in each process?' A1 P1 t7 [* W1 ]# G- r& {' L
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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( E2 p& ]" O  W
move into Q_wait /*Capacity is infinte*/
0 S. G5 k) c1 Emove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/4 C% N) d8 v1 D5 c7 w# B& M4 I; `
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send to P_B! c7 H9 D+ _% y
end
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P_B and P_C is similar7 [* r6 y6 Q. r$ q* e% q9 B% A
triangular 30,60,90 min
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in P_C, you need to send to die.7 c5 x/ `- t4 W. B9 T3 y8 W

: z9 H0 o( X) B! h3 u) T/ C) t" PThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.- e0 H* S1 j# z" E1 O
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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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