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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,
- \' S( m. b( M* [  o7 U  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.$ d( r% M0 m; M5 z! K5 G
  Loads are processed by each operator for the following time:9 o! T1 p' |4 b# u3 r4 P( g
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
9 H9 K: G/ [" ^  C% Q3 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.8 C2 i. Y# @5 J" Y2 `7 J
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
% E! i# Z  W7 o. m2 ?! ~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 a/ N- @/ q# z
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问题:
7 c+ ~4 ?* `" ~9 b4 zAfter running the model for 10,000 days, what was the average number of loads in each process?* S: a* g( `( b
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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
  k' t% Z- R: w) b7 B. ^! b0 A1 ]: mmove into Q_wait /*Capacity is infinte*/
$ w9 c  T" `7 B3 J' [0 n5 imove into Q_process /*Single capacity*/- v/ k& Z* k+ {) w; R" f

1 C  b# ~' L" r; Y! ouse R_A for n 60,10 min /*Resource A*/
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send to P_B
6 K$ L! b& _; eend
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P_B and P_C is similar
6 P+ {+ H; g) {3 m- F2 _, @1 v% s7 striangular 30,60,90 min+ }* l: _1 |0 b- M* r! Z
u 60,30 min& J) Y$ \0 J" W6 u5 ^* T% \2 O* q) a
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' I$ y% J3 b4 v6 Ain 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.6 m; e0 Y7 ~: u% P

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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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