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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,
1 P% M0 y% D0 \  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.# d; ~) L* g; |+ ]
  Loads are processed by each operator for the following time:: X" [5 H% w! `- E. K5 n
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
8 J4 J, q5 V3 }* Z5 [1 F" v% k  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.
8 O; V, {* R- j; f) P  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
' C2 @* e, i8 E4 e3 c' @3 [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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问题:- M* j# t8 o7 u$ g/ Y
After running the model for 10,000 days, what was the average number of loads in each process?: t  k; X+ A# i! T# {+ R6 `% ~# U

# ]  B& H& n' \( S不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
- @* r5 }6 U. K9 ]move into Q_wait /*Capacity is infinte*/) Z% R( `* d( `- ~  b: C: s
move into Q_process /*Single capacity*/4 e/ f- |! Q; p7 ^8 a3 f
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use R_A for n 60,10 min /*Resource A*/
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send to P_B8 T+ D) x0 x5 F+ A% C5 U0 ^4 s
end! r. G  t1 M3 H1 G7 J
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P_B and P_C is similar; K$ i7 a* L/ o! n  [
triangular 30,60,90 min# M# a, Y: j8 q9 a
u 60,30 min" B, F3 s  c" c2 V9 g" P5 h

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in P_C, you need to send to die.% Q, |- ~0 T3 c% a/ W* {; H

' Z( W1 g  C- aThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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# \5 D/ k4 v+ hRemember 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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