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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,$ A# `/ ^5 V8 d, w; G( p5 e2 O7 C0 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.7 y# P1 X3 j: U( `6 p* [+ ~
  Loads are processed by each operator for the following time:, p: R! x% W* `* C2 v; v$ J
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
  b8 V! u1 L  i# |) X% y  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.4 O5 t2 G) _3 x. }7 a5 l7 u$ t$ q5 E
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins." R& \3 s: O* ~0 a+ t" ~
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.: ^$ \2 H# B6 y6 _

4 s! n+ g& `: J3 f3 D8 R问题:  P+ D% x5 ~3 f. J5 U
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+ P6 w7 k1 v4 L+ e! @- W+ c
move into Q_wait /*Capacity is infinte*/7 Y" P( U1 n6 L9 T  N
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/7 j6 B6 u4 H% b& L0 x
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send to P_B/ y) d) ^' i* y2 K
end
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; B7 {; ]; D2 WP_B and P_C is similar
/ p7 b6 I: ]  k4 w1 |! etriangular 30,60,90 min! ~% ~/ s( l* z( m& o, r
u 60,30 min
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in P_C, you need to send to die.
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) c# q+ f* t8 z8 L! B% RThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.4 h1 l* y2 [- k& h0 {7 H
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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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