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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,! V1 j+ c9 q  [) O
  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.
8 V9 r! ~0 z- c7 B* |2 @  Loads are processed by each operator for the following time:  {" J6 Z& W: G
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.% W# y  m0 \6 x) d+ X9 b* f
  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.5 e7 y; f  B. B' i1 r: ^
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
. P/ Z- `' l) D9 USend 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.) s' a  r" \7 ^8 W7 M3 B

" J, B& s+ h( A问题:9 L" m8 H3 Q: _* P! L7 x- y( \
After running the model for 10,000 days, what was the average number of loads in each process?
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+ G" B, Z7 n  K9 _不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
  o2 N2 y. D: G0 ^6 Hmove into Q_wait /*Capacity is infinte*/% A  ]- f, ~/ q! }
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/+ v; q. U# \  }1 f) ]
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send to P_B4 V$ M- I- t/ |  E# ]- i; m
end
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P_B and P_C is similar& w! p7 A( \. C
triangular 30,60,90 min$ w" I3 ]; ^4 P
u 60,30 min8 [+ U+ d7 c  }3 b# P
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4 ?7 O) h( Y1 G# b. `7 ]in P_C, you need to send to die.. Y0 w6 V6 h, b5 B+ j3 f
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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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