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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,0 N2 I) b1 A$ p8 @
  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 g0 d6 r1 N6 J$ |8 A" o; m
  Loads are processed by each operator for the following time:
% ~4 M7 U; ?8 f0 V  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins., X) K" Z0 e- }- [# H$ p
  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.2 G" F5 c: i( _4 X& [, z# |
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
9 C4 T$ B" b' @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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After running the model for 10,000 days, what was the average number of loads in each process?6 a1 ^! o% s8 O) t
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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 arriving2 x3 q1 M% b8 s0 h# K7 g' `
move into Q_wait /*Capacity is infinte*/
. I7 ~( t2 c/ W% Q3 }5 Y+ r5 Rmove into Q_process /*Single capacity*/. ]$ I' N+ H- `& ?7 |/ h% a* F6 S

5 u0 c4 k% f2 j3 puse R_A for n 60,10 min /*Resource A*/
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send to P_B9 ]9 I- K$ a% X- T
end
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P_B and P_C is similar9 s' Y/ \  U: I- p) L; }
triangular 30,60,90 min
8 i* u1 w6 h: W) zu 60,30 min
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/ k# k7 c. K: K9 O% E/ V8 Q/ b7 Nin P_C, you need to send to die.5 c% V0 F' z, d2 S, M* t

1 \) F% a2 s0 Z$ E* Q/ U: L6 FThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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, d4 G6 f& c7 ?: P' [0 KRemember 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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