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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,9 X- T8 A8 y0 N+ [0 s
  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./ N7 a) R$ {* a1 I
  Loads are processed by each operator for the following time:
& G6 Y. L' Q' K$ G  b1 Q  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.* d  R2 D  K, Z. ]) i6 Q6 Y
  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.' m9 c3 b1 N: j
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
8 y+ o$ ]8 @4 k6 \$ @$ ~1 TSend 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." T% `. u1 \& s/ }- x7 ~

$ [+ H8 D6 J9 ^% p问题:% k8 \& w3 e) z% f; ^
After running the model for 10,000 days, what was the average number of loads in each process?
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发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
( [. H* \: R6 a' @5 g( O% c3 Jmove into Q_wait /*Capacity is infinte*/
/ @$ M( M' N6 \; umove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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1 U* o. t& K4 j3 e0 S5 v, ~send to P_B
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P_B and P_C is similar
$ X1 C' U* }. r# h5 itriangular 30,60,90 min- ^3 ^' D! K8 [- C
u 60,30 min( H4 Q( r# R1 A7 N* L, m2 E

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in P_C, you need to send to die.: i. R6 ?0 I6 }, J( G
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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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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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