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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,8 k9 {4 n, \6 C0 V1 I
  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.+ `4 f' `3 D( \9 E" u9 J0 t
  Loads are processed by each operator for the following time:
- E% I3 ]2 m' d+ s, W5 x! S  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
' d- P( H: a2 D( d5 M; @, a) 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.
( c/ V! l7 U( D! W4 \  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
  V/ I9 s7 s* C8 E' [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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3 z- C% b" O' b8 s9 x问题:3 t# T& P( Y* r5 a' _9 o2 B
After running the model for 10,000 days, what was the average number of loads in each process?6 u& r7 y4 A3 X) N; k' f
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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+ r- a6 |+ V# Z. ^# f
move into Q_wait /*Capacity is infinte*/
5 G3 X. `; K, omove into Q_process /*Single capacity*/
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4 _' h/ o5 e* y! p6 euse R_A for n 60,10 min /*Resource A*/
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: E  j. e( s) ]0 F0 h3 q# Isend to P_B
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P_B and P_C is similar+ }/ E5 _3 J2 W" _
triangular 30,60,90 min' W( N$ _" i' u# a" |  H8 g" T# F
u 60,30 min2 ^; A$ n2 w( \, ?5 M

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6 s% A& ?0 I! q5 u# V# D5 k+ b# Hin 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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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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