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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,7 j2 ^4 U# L3 K
  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.; L3 @) R( M2 x" p% R
  Loads are processed by each operator for the following time:
! o) S/ l+ I/ `& C  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
2 S5 ~) I# W' 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.0 V4 n) M/ I* {3 |6 w0 x
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.: D4 C- c+ m! E( n0 p
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 g) h; y. S* A9 E' d* S5 J
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问题:
" O1 m& X5 C9 KAfter running the model for 10,000 days, what was the average number of loads in each process?
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发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
. O2 s, I* N8 v' [; k- c: j( G3 cmove into Q_wait /*Capacity is infinte*/* Y) v! a8 h0 r6 l& B
move into Q_process /*Single capacity*/' N% `  K: q) G& N/ ^7 u$ M; f
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
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P_B and P_C is similar  w- X* M9 e6 x6 q
triangular 30,60,90 min  D4 V0 E3 w) v9 e* e# H
u 60,30 min1 ^  i' s+ a' h4 U
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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.; Q2 W# h; g, c& }. e
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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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