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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,
$ W" [4 c( Y0 V% n( w5 z/ x  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.
4 M$ c" c- M7 G: D  Loads are processed by each operator for the following time:0 m! a7 p  B& |6 X$ M
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.; H/ S" U* u: m9 B3 a4 J0 X& e* U
  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.
0 L8 o) F# |9 v( A2 ~: i  g) {7 d  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.& n* f2 v+ u# o" O7 w
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.$ [  `: l1 ~, V5 n
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问题:1 K8 v% e6 k, `& g. k
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, n9 g* ?2 _: q8 j5 Q+ n& b  x
move into Q_wait /*Capacity is infinte*/
8 d& K$ ]8 L3 P+ d# pmove into Q_process /*Single capacity*// h" ~7 G" o- A; _# J
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use R_A for n 60,10 min /*Resource A*/
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send to P_B2 ~% D( a3 w/ {
end+ E' ^8 Z4 X+ X. J4 v# y
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P_B and P_C is similar0 g8 J! \7 R: X4 a1 U; _$ C) Y
triangular 30,60,90 min
2 ]7 I8 f0 A2 U* T$ ru 60,30 min( i; v  g* A; \" T% N
( P( i0 f2 j7 N1 \  \- [

9 g% X$ ?$ x2 @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., ~5 O/ D5 a2 s

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" {8 Y7 p4 C7 ?$ y: c. y  FRemember 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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