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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 P  i" F* d( m6 M* L3 o% ~& r  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.
* s* W' v* }( d  Loads are processed by each operator for the following time:
5 w2 G% B9 O, ~) A9 G) V  ^  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
7 ^4 A+ [& f$ `* 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.
. e* H) S- j4 E% Q; g9 W# _  Worker_C does the job in a uniformly distributed time between 30 and 90 mins./ \( I* z1 D5 i
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./ U$ Z/ q3 L* l5 ^

* d5 d6 R9 _3 U# w# [0 o3 p) F2 m问题:2 c3 k, |# z) h0 C; ?+ O
After running the model for 10,000 days, what was the average number of loads in each process?. \. A, A$ [% S; u
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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- f8 d2 `/ K7 \% }9 A- m. e
move into Q_wait /*Capacity is infinte*/% i* b- C# |7 a" u. l1 a
move into Q_process /*Single capacity*/
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- T5 C8 Q3 L4 E9 r  Y) `% P. wuse R_A for n 60,10 min /*Resource A*/" c8 Q+ j  `6 L5 v

! u7 s) Z: u5 c& @: _' e2 ?send to P_B
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P_B and P_C is similar
% [1 ^3 D+ L5 R' q' i4 K* O% Qtriangular 30,60,90 min
3 o1 J; A* N2 eu 60,30 min. T  U7 X- U" _+ t# C6 C- f

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7 B' Y" F, M: @& M7 Y: Qin 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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- H3 I$ Z$ X7 [- rRemember 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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