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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,# T6 e- O$ [/ l+ o, ^
  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.2 K1 `, ~) e, p- |2 o3 ~/ H
  Loads are processed by each operator for the following time:. ^  _* A9 y, U+ Z% u
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins." C  a2 E/ T' d4 {
  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.
- |5 T# e$ h9 [- O  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
2 r  u( d. l/ V! k! d" ~5 U/ NSend 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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  Z) b( ?, T, c0 E问题:
' h$ R' M8 k: W) h$ ?7 f7 y9 }After running the model for 10,000 days, what was the average number of loads in each process?& l+ z& V& w; k, M- A

" c5 |2 j4 f1 r2 D. m不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving: r! a9 q* b. d( E
move into Q_wait /*Capacity is infinte*/
0 ~0 T, L& o* S- z9 ~move 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_B8 }. J1 b, L3 W* ^9 w
end" O# E- i' B+ U

3 {$ \$ h9 W" C. }P_B and P_C is similar
0 h+ O; H; }" A/ x  X+ d( J. Ztriangular 30,60,90 min
2 _9 G4 j8 g3 z! mu 60,30 min
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$ U6 J. @3 k* L: w& uin P_C, you need to send to die.
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0 x5 b$ W, c. y: p( }  D- {* Z5 _. ZThen 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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