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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,
0 N# b+ m. u) {6 O7 e  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.
7 Q4 h1 T/ i9 v* S, Z1 w  Loads are processed by each operator for the following time:( K* V; J' [9 n2 i1 r: i" p
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.0 t' g9 ^0 _- e/ j
  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.
* w7 G% A6 g$ {4 M8 F. s/ Q; C  Worker_C does the job in a uniformly distributed time between 30 and 90 mins." R* u( V: ~) L' Z) g
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:; T( h" M" Y% O2 Q2 n
After running the model for 10,000 days, what was the average number of loads in each process?
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4 R* c4 D. X. J9 }! f* d% s$ M不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving% C( f2 H6 [" u$ X
move into Q_wait /*Capacity is infinte*/0 A5 v4 w- ]% b$ O! j$ \' L
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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. F- ]: _% c) R8 P2 \1 _send to P_B
% H5 E9 M% x6 k/ ~2 s% y. Dend; i( O$ ]1 G8 J6 J$ s' t3 M! n
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P_B and P_C is similar
% e6 }: ^2 @3 C5 P! x9 gtriangular 30,60,90 min
$ ~# S. U: U3 a  Y  ru 60,30 min
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in P_C, you need to send to die.
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. I% W5 r: g+ Y& C  `9 B  W2 xThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.# J% R6 v5 r  f7 f8 ]6 c
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8 u+ t) B( ]4 B' JRemember 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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