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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,3 }6 E. ^$ N- Q8 t  T2 `5 |
  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.3 o% q. \& D8 W- ~5 d+ A
  Loads are processed by each operator for the following time:* v$ o2 l& B, U! h9 S  ~3 O; M
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
/ [/ M2 Q- Q# U  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.' Q8 r# }5 ]" `+ u' B- M; w
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
  y" I- V' Z" Z% [- OSend 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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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/ x# Y& u0 a% b+ u# r
move into Q_wait /*Capacity is infinte*/# G2 O. ?* j$ h  ]! ]
move into Q_process /*Single capacity*/3 S0 q3 q, @! S( R

, `$ C6 V, e0 r: Q$ u% l7 Suse R_A for n 60,10 min /*Resource A*/
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) T- i# v- t/ h* @$ B% k. @; Vsend to P_B$ Y/ Y  Z9 W+ R$ Z9 H) B
end3 c7 S% d9 W6 n( Y% d/ K
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P_B and P_C is similar. C1 F* p: ?. \; s; q' A
triangular 30,60,90 min1 T7 i- K2 e  T# h% I. R
u 60,30 min
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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.
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+ D' a" E% ?3 U# J/ ?% _( Y  H: gRemember 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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