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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,( a( J* K7 o$ X( S# }' O1 D
  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.2 l% e" W5 w8 K* X
  Loads are processed by each operator for the following time:
, |8 \/ B8 w: ?3 o, w8 a9 D. v  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.$ O3 |" j/ b" @+ s, s: N+ 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.
' X( i3 u% ~, n) s: k7 I  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
5 e, F9 a9 v7 |4 @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.1 r/ r/ z8 W7 z' g6 i

, H3 P; e( Z( d8 o问题:# n, H5 ], K4 X" {6 T. c! L, m
After running the model for 10,000 days, what was the average number of loads in each process?
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6 H* \* o- J" b, t9 _不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
  L# q8 o1 F% r- k6 Q9 |! Xmove into Q_wait /*Capacity is infinte*/2 h6 L$ Q: q1 L% X; W$ U3 _" S( p
move into Q_process /*Single capacity*/
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; A# U+ D2 Z1 Uuse R_A for n 60,10 min /*Resource A*/8 T; x2 ]. |# N* H
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send to P_B
& r7 q) P- Q/ Q. tend
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P_B and P_C is similar, v" B) A6 ~' s
triangular 30,60,90 min% ~; d6 ^2 ]$ X  P
u 60,30 min; F, t" ^" K2 q% V' E$ {4 N
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/ r. ?+ Q1 J& F! F- N9 [. @+ qin P_C, you need to send to die.
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0 z0 f# M( ~/ v2 `' D, ]9 Q: K7 _Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.5 q  q* L$ n: r; y$ ]. k- [7 ?
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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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