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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,* q1 X. w! m1 t+ `) D
  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.
- F2 R$ U& i& O& ]  Loads are processed by each operator for the following time:
  p, a) p1 N0 {, [  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
" Q8 d- X2 E7 |0 C  f  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.) a7 x: \) [7 H! m
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
; t3 n3 w3 K& s" w( x! V# D' vSend 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.4 i: L. ?% ^  L3 ?1 a0 x& x6 `
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问题:
$ R, H' u& B7 i1 _  BAfter 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
5 _$ v8 h9 {9 `5 E7 Zmove into Q_wait /*Capacity is infinte*/
  `* m0 g9 w- e& G; x, b( vmove into Q_process /*Single capacity*/8 _1 W) M% H! s* [$ K7 X

0 V7 s4 m+ X3 y( Kuse R_A for n 60,10 min /*Resource A*/( ^% k4 {* r4 b9 X
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send to P_B3 h; r0 u. f. F* k/ T* A5 ~
end
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& }! G' U; d$ k! H( J3 fP_B and P_C is similar2 w  `, |" S: d: h7 N9 _, g2 T
triangular 30,60,90 min
+ K3 A1 J" E6 s+ `u 60,30 min, ~2 j. Z% W1 M9 M

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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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