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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," i7 Y* R2 S7 U  {% {
  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.$ J& K' u& q; M& B" `
  Loads are processed by each operator for the following time:
3 o6 T" h; `8 `! p+ q) c8 Z; J) e  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
3 Q3 j. u7 p- H, Y& O  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.
. t8 |! o) ^* Y1 P& w. n  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.5 ~1 x5 J. i/ E! @
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.0 P% G$ c0 B5 h5 a* _* C
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问题:. U" @' Y; J8 ~, y6 T# o% s
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
; b2 u7 e  Q" ?2 }! e" n5 Mmove into Q_wait /*Capacity is infinte*/
/ G/ Z+ Y) t" j6 e- Z6 B3 Wmove into Q_process /*Single capacity*/3 H7 H9 W6 G+ z4 W5 h

2 n3 _/ {- H8 l' w9 K5 d7 q8 suse R_A for n 60,10 min /*Resource A*/, o) k( S( K; e

' u/ b- Q0 A0 l" fsend to P_B
6 c* ~4 ?. c6 I3 M) i% B# Iend
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/ s% \  }% X* o: _' [P_B and P_C is similar2 J0 W( @. ]7 O5 b* A
triangular 30,60,90 min
, [3 v1 l6 ]1 N0 d# ~' m9 Au 60,30 min% ^* q: I; b: Y! ^: x3 G% p

- O' {$ J" n3 @! W; y- j% e' A2 S( @1 W# }; R2 r
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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, I) g0 o. V5 c; W) _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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