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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,+ D* V6 ~# E  g. S& h/ e- {) g
  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 I/ X8 `$ t" F  ^/ y  Loads are processed by each operator for the following time:
: p! \6 q" B0 g. f1 v  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.7 e* P; U- l$ M, i& f
  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.- M( d3 X8 a4 z1 Q; M  e4 H* v
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.) j& `8 [8 W+ }+ S" |3 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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问题:4 y7 C" p# Z  {( F/ c
After running the model for 10,000 days, what was the average number of loads in each process?2 B) `( s( p# b) u

, f7 \9 r' W. f3 ^- }不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving* j% |9 t1 g% N$ V" k& {
move into Q_wait /*Capacity is infinte*/, b; ?& ^, q3 I( e& C9 P
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/) N8 s; F8 ]' d" X! r+ r+ r
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send to P_B5 Q' k9 t: l) N" R' u9 f
end) R: b+ E) P- X3 W: w9 @. _
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P_B and P_C is similar
9 N- J9 t+ Y# Q7 a2 s4 _' ]triangular 30,60,90 min/ Q6 B: `- l, u6 r! m, @0 x' H0 t
u 60,30 min  C0 `: Q6 b6 n" N8 B
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  D+ K# N$ p3 k: u, M4 t# o2 p+ C' }in 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.4 X% q4 V9 D* Q
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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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