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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,5 s# Z4 |+ V" _' `6 Z
  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 |: p! _# F* W
  Loads are processed by each operator for the following time:
" Y  O# T/ |* C" m+ t$ q+ d  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.* ^! n2 H, H+ f2 p3 }6 R, f. P4 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.
% q8 J) Z7 S% f' H- {0 c& i  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.. `7 u  r+ {# V$ [' C
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?
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6 y4 ^- C/ _+ Y. S  ^/ K不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving4 @- n$ ?( s) K
move into Q_wait /*Capacity is infinte*/
# _* R5 l3 C$ T$ wmove into Q_process /*Single capacity*/) }, k1 U0 m# {& ?) X
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use R_A for n 60,10 min /*Resource A*/
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; u$ s2 W) y5 K1 h/ i8 C8 w! O6 Nsend to P_B$ N+ N5 K% x4 f
end8 z5 B- {! }) n; z8 I  u3 N. e
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P_B and P_C is similar" A2 {  |; t/ j8 B" ]
triangular 30,60,90 min& [' r5 l9 h: w( l  X1 G; d
u 60,30 min# c# w) w- w. Q* ^
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in P_C, you need to send to die.( I3 j" f( {7 I( W4 k; m# ?

1 q+ s' I7 w# B' ^" {Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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' B. y7 g3 O9 ]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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