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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,1 Q2 X4 s, @4 V0 w- a, l1 S" ~
  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.7 x( o; |2 a3 k$ M
  Loads are processed by each operator for the following time:
5 _% E  A9 y% h% U  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.1 ]2 b, h% y" Z. h2 _& u4 F* a
  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.8 F5 J3 `, b2 ]6 o' A( `5 _. O
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
5 V5 P2 b4 P4 k' H% ^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:+ {; m' N0 K7 f, ?
After running the model for 10,000 days, what was the average number of loads in each process?
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# f8 j8 ^; z1 Z/ u7 \) c不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
$ j% m+ \, D( ^. z* c0 ~move into Q_wait /*Capacity is infinte*/! }$ c' L" @# y" C9 x
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_B
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P_B and P_C is similar% p# u# g4 C) i; C" t  U# q
triangular 30,60,90 min
7 q  `; C1 A. c; ^/ Ku 60,30 min1 [& |9 r4 c( T: W) r
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in P_C, you need to send to die.# Y7 g/ l( N; n1 v

/ _2 k3 v8 F6 x2 q9 @% RThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.$ {5 T  U) X  S! w' g

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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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