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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,
* Y& N) _7 F7 y8 W9 K  g7 W  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.% M( z* }/ J! p, F4 F' p5 Y6 i7 S
  Loads are processed by each operator for the following time:
1 D5 G4 ?! Q5 x# X' g& c( t6 M  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.) j5 G+ h% y0 l9 w. Z& p
  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.
. F3 ^- x0 E3 N- a+ t  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.2 s0 Q& _) x: [7 \  P
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:5 s3 U' s: e5 R& b7 ]6 r, C4 n" I
After running the model for 10,000 days, what was the average number of loads in each process?
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+ {8 v  z% T( m# \: F) r! y7 c不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
& y/ |7 s/ P6 G5 v4 u4 S+ t) Jmove into Q_wait /*Capacity is infinte*/! d; S$ W5 C! V9 {: j- f, k- b
move into Q_process /*Single capacity*/& Z# F# o$ b' k% X4 o

, [; q' s: E/ ^use R_A for n 60,10 min /*Resource A*/# |% ]3 ^9 |* b' _# l+ N3 W
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send to P_B6 j$ e3 F" x/ T5 l- @$ }
end2 ?+ K3 H' E/ ~1 `! h+ |% y% x$ `

: e* [0 Y9 D; e5 o1 O( }P_B and P_C is similar# g6 N; S. {/ G2 Q
triangular 30,60,90 min
& U* `6 q4 D  J, L! L# ]/ Ku 60,30 min
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% E9 u/ c$ u" fin P_C, you need to send to die.
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8 b" |* v& t! [! _! }4 r; N% }Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.4 ]. h, k& e- }

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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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