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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,
" @- {+ a& ]  h6 u  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 E9 K1 S& O& l. U" F+ y
  Loads are processed by each operator for the following time:
+ }' o9 y: {  l  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.( {+ M/ P8 \( i/ [5 a; _& W
  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.$ {( ?$ N3 W) i" W
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins." x1 U! b, k$ F' H
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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5 w. ~, P" K% {4 ?  G$ Q/ g& n问题:  B! L5 _; N% P2 B9 C6 E, c$ J
After running the model for 10,000 days, what was the average number of loads in each process?# V$ K2 Q9 A6 i% }4 S7 t1 i, `, U% E

9 H+ O$ |0 Y3 x0 v( g5 Z; N不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
' S% A5 Q  ~9 `+ jmove into Q_wait /*Capacity is infinte*/
% @' Z) N8 ~7 d$ emove into Q_process /*Single capacity*/& Y3 W5 |, K+ Z# X
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use R_A for n 60,10 min /*Resource A*/
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send to P_B# }* h1 W7 S0 @* I, P" \- b
end
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P_B and P_C is similar# o$ L) d* o* e
triangular 30,60,90 min0 D/ N+ |8 T8 v; e2 H
u 60,30 min
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6 z; H) g) G( A7 i) D' L, tin P_C, you need to send to die.
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* g+ E, a0 d1 x/ X& [( d$ _3 MThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.% [$ w) P6 U! U( W( O# r

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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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