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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,& I8 s' S0 r2 p+ ^1 z( l
  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.4 v1 b6 {6 u7 S4 W+ K6 U2 `
  Loads are processed by each operator for the following time:
4 f7 g1 k7 w2 p! I! [/ ~& H& O  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
$ I$ ]) i" ~/ S( ?  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.* _. o1 F9 o* ?# n/ Y9 |
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
7 t( p' @# m# tSend 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.' o+ h8 _) x+ F" [
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问题:2 ~3 e" i8 S6 S: y! d, K5 W$ p7 [
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& L& |" t  I" ?: I4 |! D
move into Q_wait /*Capacity is infinte*/
5 L: F2 y9 V$ J3 Fmove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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send to P_B) x3 S$ N( Y3 v
end2 i1 i9 F! V1 p2 b
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P_B and P_C is similar
2 R/ i( B. a0 x2 p9 ^. etriangular 30,60,90 min# a3 Y+ \; }& U9 b# }3 `. h6 w7 M
u 60,30 min6 c& ]7 N. O5 e+ m. }8 K# H7 r7 }: F

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/ p* S4 r: i' ^% d% B+ Cin P_C, you need to send to die.
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' t4 t/ p9 L9 n% R% s4 eThen 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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