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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 z4 m; }$ ?, G' i1 ]) h1 [
  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.1 y: q/ }+ s' L; s3 Y; B
  Loads are processed by each operator for the following time:
3 I6 H% L$ s" x) l1 K& u  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.4 O4 k. x+ o+ u5 z  v0 G
  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.1 H- w- T, r$ T$ |1 l$ t
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.7 S6 u3 [% Y, U# G" t5 [
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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2 f) I9 a" `# V# R3 |; Y问题:
. P+ |2 f6 D( a& Q+ S4 `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
: V: ^# A0 j& _/ B1 Z1 @+ x+ L, Y; qmove into Q_wait /*Capacity is infinte*/3 \) [2 L) H9 A5 N2 a- Z% y# z
move into Q_process /*Single capacity*/
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2 I# @, U( E0 Buse R_A for n 60,10 min /*Resource A*/
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0 M, |2 v. ~! A6 n- r* Asend to P_B- L: K! R3 e: v; {, W4 d( E+ ?0 L
end' t4 i0 w% ~0 _# e  z! o

3 q, M+ N) }5 S; j& i$ @% nP_B and P_C is similar2 Q2 a: ^* R! R
triangular 30,60,90 min: n; K& L  X; t. Q) W8 p8 @5 T* p' [
u 60,30 min$ C' y0 N1 O2 o  R% Z: B
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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.
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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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