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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,. A9 Y' l3 ^1 L  g9 O( W
  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.. o! E# v4 j% p6 M" V* F
  Loads are processed by each operator for the following time:
4 `* C( @* ?& G( b% {; k% E" @7 b  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
4 z& V, j, d- N" d8 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.
  r- D0 x, l9 w( d# u& r8 ]; |  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
; Q0 }' S& l2 r' pSend 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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4 _3 @$ |* Y- _, m问题:' S  S8 M( o1 R" I  ^. y' @
After running the model for 10,000 days, what was the average number of loads in each process?0 E' C) v# Z! Z8 y
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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 }2 k! l" W9 Vmove into Q_wait /*Capacity is infinte*/
6 z) G0 F: V2 @6 t5 mmove into Q_process /*Single capacity*/
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, o! V& }* Y4 k3 F# a! fuse R_A for n 60,10 min /*Resource A*/
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5 k& F" H& {, s6 w8 esend to P_B* |* C* J$ o7 F
end) c' G" h: q; s
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P_B and P_C is similar. g& v- ?. S$ A8 `- z0 a8 x& g4 F
triangular 30,60,90 min% X0 H" V8 J+ G& \4 ?) l3 n! K
u 60,30 min0 k' ~. L3 R) {5 h! B! P3 [- t

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/ K" h4 l1 j7 u2 q$ @% W5 Yin P_C, you need to send to die.& k) n/ t  l6 x% R& q8 @
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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./ i3 G' X# g" I  _, P; R& m

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: m% R- C1 ^7 v& |& D% u7 m+ HRemember 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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