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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,
% {4 S1 F+ z+ ~; C+ q5 Z1 G3 ?  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.  X, Y' f; U, B5 f+ y* f8 Y; v
  Loads are processed by each operator for the following time:
' V+ g1 ?: D- V. J8 h) e; w* T  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
* Y( n' P8 o! N. v4 [  \# T  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.0 N0 V5 v& a; s
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
. H0 U$ v9 v+ O& H1 r+ i; bSend 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.! J) ]3 c& S/ E* [' \# d

2 u0 u2 W0 \( v' s( i: t- [6 G问题:1 `2 G5 L$ w* C" |, M
After running the model for 10,000 days, what was the average number of loads in each process?
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& N6 w9 f: }: [! A: O6 H不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving  g! `7 G0 o. ]! M
move into Q_wait /*Capacity is infinte*/
& n, o/ M/ L/ X! mmove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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4 e2 L) L. S" j, v/ m# d: {send to P_B
  }3 Z/ ^' T; {/ j/ \6 v5 v6 @end8 Q7 q5 ^& ?2 P& t0 i" ?5 Y; @+ v# M
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P_B and P_C is similar) v: e0 H+ E/ z3 r7 ^+ _% c- g# d
triangular 30,60,90 min" G% ~7 j* p( T' V: Y& o* z
u 60,30 min
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in P_C, you need to send to die.
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2 N; m1 n% |/ y1 xThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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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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