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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,% Q$ v7 O  [) {& x+ U! C
  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.
6 p8 W! m2 J, u/ w6 {' z6 G  Loads are processed by each operator for the following time:
9 h, p( L6 u! k$ }% m* W/ m  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
  N& V, A% i% ]3 }5 D; _  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.* O* @) n' @- M
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.; m& P, S" B+ B1 r/ {
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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2 G) N( }" H4 {2 a问题:
2 Y' C! H! L& h5 nAfter running the model for 10,000 days, what was the average number of loads in each process?9 h5 e3 P5 t3 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
1 l/ n6 f/ |! o3 Xmove into Q_wait /*Capacity is infinte*/8 H/ Q6 M& i& H  i1 v2 Z
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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7 L! f6 Z9 ^! K, fsend to P_B' w. @1 W3 X1 C/ B. p& R
end( m, J( K5 i' `5 U7 p' q0 s
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P_B and P_C is similar
' Z. x9 x! S& W: |, Wtriangular 30,60,90 min
; X' P  Y. E# |, Y6 Y0 h5 @u 60,30 min
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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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9 \& J$ x" j; \. q& U( ?. s% qRemember 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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