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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,
+ y5 Y$ G8 ~4 O! [0 d: t' r1 I6 V  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.. J8 b- @; ]2 k3 o. i5 k% [: j
  Loads are processed by each operator for the following time:7 e: D5 M( Q1 ]
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.0 O( l4 Q+ E0 S
  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.$ E- d/ ]0 g. o9 |
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.6 V( e$ N$ B- Q- L" Q- [; D- f
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.- X- k3 K7 \4 a3 E

$ L/ i' j, k2 p9 K+ ?7 B4 Z问题:: v7 [4 g& ]; q
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* f) H& W' h% q* C) i
move into Q_wait /*Capacity is infinte*// m* d' R) K7 d$ X* m+ `7 m
move into Q_process /*Single capacity*/( g8 F! p6 Y% g7 _. l7 h2 B
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use R_A for n 60,10 min /*Resource A*/+ r0 T+ q+ D+ ~! a3 ?! R% m, Q. D
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send to P_B7 z  t* K) _/ B) c% e! _& x
end. s4 o. z7 D3 u6 m. `0 [) w' V

' H$ C/ z& G: Y8 q4 CP_B and P_C is similar2 c9 ~! w0 r! _/ v- Y/ k
triangular 30,60,90 min4 d+ M$ I* _& J- n! e. i: @4 D" s
u 60,30 min" g) C" o' e) F* n$ B
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in 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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