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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,. N, J! H1 v3 k
  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.9 b/ ^6 @% b" `# ~
  Loads are processed by each operator for the following time:& p! y. Y* @" |0 z2 ?; o* ~; I
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.) ?, m( W+ ?; Z# c: n# Q) u" Z
  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 I; `' b. d9 Z
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
) y$ A' Z, }6 D5 P6 J3 |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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问题:3 G' |5 A% R; i# I
After running the model for 10,000 days, what was the average number of loads in each process?
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  [- M( b7 |# h0 I+ ]' ~! Y不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
% `/ G$ A5 K+ Jmove into Q_wait /*Capacity is infinte*/8 |  _- L6 k7 F" X1 T3 I
move into Q_process /*Single capacity*/, y/ q5 p7 N' [/ k& T

, m! }5 A- |) Q" t# Euse R_A for n 60,10 min /*Resource A*/
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2 j$ N1 L; E4 I% ~send to P_B; T- X* }. |0 o' |- R
end
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1 i# M$ R1 e7 Y: z5 z# BP_B and P_C is similar
& Z: _, s1 q( w6 \" l) Itriangular 30,60,90 min
9 a* q: o: J1 k0 B9 l8 I' ?& `u 60,30 min
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in P_C, you need to send to die.0 d/ w& B8 [1 b4 v6 W4 }

$ M1 d! E  i1 u2 w8 q) p7 r+ OThen 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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