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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,
/ [3 j: ?) w' i  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.
4 J" f5 A: f  L( s  J6 e7 F6 V  Loads are processed by each operator for the following time:. ?' I* {) |. B+ a
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
" i- A8 A& f/ u5 B  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." R: j; L' d) e
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
3 Y0 D! F& ]( p+ 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.1 g" Y' ?) V/ D! h

5 \$ b4 @  g( _. i' g问题:9 E# ]* K8 K" P/ y/ i+ R2 Q
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. [% |' @9 d# `1 J( P2 x% x0 F- w/ N
move into Q_wait /*Capacity is infinte*/3 ]  S2 M+ `/ j6 Z' w* k. [0 t' _
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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- `! K: o: n% J7 O, K: Qsend to P_B
2 ?! S* ~/ K2 z7 k; Eend
  t/ M3 |2 T& K
; ^4 z' a/ R: J( yP_B and P_C is similar  Y. u* X2 V- R1 [9 V6 a2 d
triangular 30,60,90 min$ {, w  p& w( D& F# `! v5 j! W" N
u 60,30 min
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. R( F6 J$ l# zin P_C, you need to send to die.) X4 S: H5 N% a
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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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) w' N1 r5 e6 _. [* S. @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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