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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,
, N8 Q8 [) [( H1 J6 l  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.% a2 E: q) {, T; q
  Loads are processed by each operator for the following time:/ e$ v7 L6 L" [5 o# ]
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins., x. o. E  \$ e2 p3 S- o
  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.6 I' g9 S4 E6 z0 f
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.% x/ {% A4 {8 y5 ?4 d9 l) F
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:, B9 E/ p; |% C9 y" _
After running the model for 10,000 days, what was the average number of loads in each process?3 ]) I: G; O  i6 ~6 j9 i1 R# ^
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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 arriving8 E" p) K: f( e! T( o7 V. f& {. }
move into Q_wait /*Capacity is infinte*/* w! A* ~: Z' g7 ^; Y$ b+ R
move into Q_process /*Single capacity*/2 H3 X3 D" s+ N8 y: \' `8 [4 r

2 M; i( Q: i7 I0 _) @7 Ause R_A for n 60,10 min /*Resource A*/" B/ Y& D( _! Y+ W# p; e2 d- p
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send to P_B' O& P  |" Y8 J# l7 ^5 W& d
end
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P_B and P_C is similar* @7 I# r& w; Y/ l# P; V
triangular 30,60,90 min
/ R. b/ L" U1 y* ?7 ~u 60,30 min
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in P_C, you need to send to die.
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: z2 P, E7 x$ D/ k8 NThen 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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