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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,
% R- u2 }/ V7 U4 \  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.
+ u& z" G: J* ]; J  Loads are processed by each operator for the following time:
/ h: Z$ D7 i; I/ D  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
, q7 D9 z4 Q: A( k  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.5 X+ @+ v9 c- I# r9 a
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
" q' J- U" D/ SSend 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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问题:3 [+ M' \2 G. L3 M3 U4 L
After running the model for 10,000 days, what was the average number of loads in each process?
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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  e! j1 I8 u1 w9 Q( Y' J* B: N
move into Q_wait /*Capacity is infinte*/
6 v, N0 c" F. W" F4 T3 _6 tmove into Q_process /*Single capacity*/
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' w" {$ G3 Z1 D" a0 f' suse R_A for n 60,10 min /*Resource A*/  u$ d1 n& x5 M
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send to P_B
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2 S* i- w3 X3 }& \9 ~( H+ kP_B and P_C is similar
( ?! c. V5 h6 w4 `triangular 30,60,90 min
* t8 B( {) i7 O, Du 60,30 min7 h3 ?& q8 X% ~4 C2 L8 B+ K8 U
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in P_C, you need to send to die.
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6 C+ p3 {' T" X' o( [  f" MThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days./ `7 F) B( A; ^: I

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& \5 W. ?0 _3 a) U6 DRemember 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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