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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,
6 J/ t2 P5 u! @2 I# Q4 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./ q9 F7 V! c, w2 w& B
  Loads are processed by each operator for the following time:
4 `7 u0 o& ?! G$ s7 }: K  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.6 N; g" Z! s7 V7 Q  R
  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 E5 A- h, B9 j9 j! H2 i
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.4 \# H# s1 ^0 y: B: `: \. v7 J
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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: ^! g( |: ], a3 I问题:. k; n: B7 B5 j! X- C% Z
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
, F3 g6 N8 Z5 q' p7 vmove into Q_wait /*Capacity is infinte*/
+ F0 ^3 |. p7 m' @move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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- b6 t4 c5 W: Wsend to P_B9 v' ?5 m: J6 q  U, U
end
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" z6 \' d9 D: a6 h6 z0 [P_B and P_C is similar
, _8 Q3 _1 Z$ S3 A' Gtriangular 30,60,90 min
( ?$ @3 C/ X4 I. mu 60,30 min  Y* |- I6 s% `3 C- I& F! G
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in P_C, you need to send to die.
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9 p9 Q+ |3 L# _8 s" i' ~8 _( JThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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6 `- \- Y. `% `; i8 V. Z/ D( }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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