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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,
, ~) \& R3 {3 ]* }, C; N  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 a* `' i+ o1 [# H, z
  Loads are processed by each operator for the following time:9 p% a* |4 s+ N
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.' I& j+ s5 |9 _5 s( R2 ]
  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.
8 E3 E9 [, x+ |/ g' I3 x  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
7 a" H4 F0 G  w- Z8 cSend 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.& R& Y2 |( ]" E. j: ?" ]1 x

% ~" B. ?) |" p; e; s+ W问题:
! G. J9 S+ W: w9 P( gAfter 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
& c, L  f8 G; ?6 T$ Y5 Kmove into Q_wait /*Capacity is infinte*/# F. S. ?: x" T( O8 a$ S/ {" w# q
move into Q_process /*Single capacity*/
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6 S( Z1 I6 _% _! I! E1 A5 l( Iuse R_A for n 60,10 min /*Resource A*/
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send to P_B
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5 ~& c' Q& @) P: F4 i& A) l* GP_B and P_C is similar: F: e! k/ ^, s: T0 T: _
triangular 30,60,90 min
+ L4 T* K, L7 `+ E" X3 d3 eu 60,30 min" |' U! Q7 Y' P8 o5 v1 G  X) E

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4 W0 a$ M: g" I5 m* R, [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.% r, E1 D* P. X* m
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; f8 u7 {7 p4 X) IRemember 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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