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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,
. ^: I3 k0 J& o# ^( a) ~8 z  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.
. s& z. O- l2 o+ L5 k  Loads are processed by each operator for the following time:; f7 H0 `" }6 {
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
, l. h1 h& V" G, ]  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 K5 s9 j, x) l. |- ~  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
& O4 {6 h( u9 ]- h5 C# OSend 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." w5 a* ^% w' y7 o3 y

' B9 i: T- @4 D; M+ W问题:% |  K' o, R& R# h; p. M- y
After running the model for 10,000 days, what was the average number of loads in each process?( M% c& s5 C  C* x
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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% C0 ^3 t( M! [move into Q_wait /*Capacity is infinte*/6 Q& V2 w. u- A4 H: v  F
move into Q_process /*Single capacity*/% f3 G6 f+ z0 g" ]9 |) t
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use R_A for n 60,10 min /*Resource A*/2 }  a$ d0 ^# y' `+ m4 a: d+ e
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send to P_B- b3 \1 b" K6 S" k
end5 H* w9 c3 C! Z1 ]( C5 s/ s
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P_B and P_C is similar( V- Z! e$ x) ^' c& v, A9 ~" i
triangular 30,60,90 min5 g- z& Y6 G+ J. S+ H$ T2 w: b0 I
u 60,30 min+ a  D0 e" U0 A! [. `
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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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: d: g0 j9 C2 t2 a7 m9 gRemember 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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