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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,
+ H  j. e* D9 D* ]+ q# U/ v  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.
8 U+ n$ \6 I) E5 E- B6 V  Loads are processed by each operator for the following time:2 S: I3 E" E' B6 [# U, B& @
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
( _- g( K! z3 F6 P0 ?6 X+ R  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./ Y4 ]$ R% e( o, s* \7 y
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
# r! X3 @7 e& z5 USend 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.) s+ y) m' g% z
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问题:2 D9 h) Q" W* o# L7 @
After running the model for 10,000 days, what was the average number of loads in each process?, P3 m- d2 `# W& ]- B9 Q0 Y
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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
4 R" s- Q' U! d, r$ wmove into Q_wait /*Capacity is infinte*/6 q# x! T# [6 B9 @0 S
move into Q_process /*Single capacity*/
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& R/ u" U3 K) ]5 d! w- d* suse R_A for n 60,10 min /*Resource A*/  R' t2 l1 s8 V" z# u  h

% B. Z9 ^4 d6 a4 F% Lsend to P_B& J) U5 v' G3 Y1 o  D
end! o9 |' d- j8 |" e+ j
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P_B and P_C is similar' K' W. ]& y4 _. n
triangular 30,60,90 min
" `4 y3 m+ r. \2 w' mu 60,30 min4 x. ?# d8 F2 U9 P+ q# z; m

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- Z" k* R7 H( Lin P_C, you need to send to die.
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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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1 k" Q* m" ^& p" [$ {$ v5 g% j; J% o9 b9 ]. _
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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