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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,  K) @3 D; P! H
  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.% K! U/ G, J. N' F. m: T& @
  Loads are processed by each operator for the following time:
( F1 g& H9 ~& |0 X, K* l+ E- c( ?  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.( C' z. d# C9 f4 I
  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.
1 p. S& K* d" ]7 g: N; y( g6 F  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
/ b. r2 q1 y  e% K& pSend 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.3 {# o3 l+ v* W& {, U3 U& O' l

9 z! i( u- D. N9 f/ W问题:
' S' C, M. t8 u; U" z7 ]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
! `4 c1 h+ j' X% z! Lmove into Q_wait /*Capacity is infinte*/7 H! y2 E" ~* P( t+ Y" S5 S
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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send to P_B" F  g: H2 `. P& ?& I8 P( a% w
end% Y! B$ h( L/ M- j7 M
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P_B and P_C is similar* i5 @9 b4 I/ @! C) @
triangular 30,60,90 min& U7 N9 B0 g# o7 V; ]* |0 J
u 60,30 min
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9 n( M. |4 i/ d! e' ]5 }in P_C, you need to send to die.
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5 J/ [% q; H/ a+ F& L. q+ H. kThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.) b9 N( {7 O0 U" w- v- \" P
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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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