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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,0 ?0 X: C( J" y. `' M
  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.7 [( }+ R/ h! M
  Loads are processed by each operator for the following time:2 }2 r/ p1 ~+ U6 P0 N8 P
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.5 `4 j! _* v1 D
  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.# {" y* Y: [9 ], N
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.& `8 u/ U- \5 z# Y
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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" P$ U+ n( s, H9 n' t问题:1 ^: K' Q9 W& A
After running the model for 10,000 days, what was the average number of loads in each process?! H. h8 N3 X: i) X6 f

* i- g& F1 O- Z7 @不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
/ W" f3 S+ D3 G8 j* ymove into Q_wait /*Capacity is infinte*/
6 H2 G7 e- Q& f+ K7 O* ?move into Q_process /*Single capacity*/% _" k1 H+ N5 @* }8 X
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use R_A for n 60,10 min /*Resource A*/
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- D, K: I8 v# I1 tsend to P_B: r9 ~; |7 X5 K7 Y
end
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* f: a( `6 E6 T5 |" c( \, f! z( qP_B and P_C is similar
: g/ p  R- c  O2 `* ~$ ~: etriangular 30,60,90 min
" E+ V2 M; T+ O) Z6 f0 [7 u7 yu 60,30 min/ s: ~. C3 L. r# C2 L! @( |
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in P_C, you need to send to die.3 \4 Q0 {* D0 z1 y% O# w8 T

) e9 g- F% |# d- s3 MThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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/ G* ^  c# {. i  GRemember 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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