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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,
( V2 u0 \5 ~( W9 e$ N( x, G/ _  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.
- d. o4 O& c% h4 b1 h# J  Loads are processed by each operator for the following time:
: J: D% V8 k+ Y# Q6 G7 x  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
* @4 l; f: z, _9 `% }  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 i6 t5 l4 V  ^4 l/ }% ]  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.8 b' @2 _/ n; j, i# Z6 v
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.! w+ L% t" y% [. E, c9 }% k6 \
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问题:
, B4 x8 O2 w9 mAfter 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
) y* \$ B7 ^& y# ]0 \' I+ Imove into Q_wait /*Capacity is infinte*/" C3 p6 T, w3 p- k# ^
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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5 X( t  C" G! v2 W" T5 |7 lsend to P_B4 T% A# \! h2 A8 B9 m& {
end
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# B& L/ j) _" R4 z) DP_B and P_C is similar) i# _' ~0 }3 j$ h4 I- o6 R
triangular 30,60,90 min
% P+ W7 i8 p3 |0 tu 60,30 min
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. W* {+ Y; S9 W$ Pin P_C, you need to send to die.  W- e$ d2 M0 z: w" A6 @9 s7 R5 T
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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.! p$ I1 {2 c7 K1 j) D0 o
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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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