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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,1 C- i1 k' H+ J/ d8 h2 Z' W2 `1 A5 Z
  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.
+ t& s0 j$ _' c8 o6 t. T5 k  Loads are processed by each operator for the following time:
1 ^9 g$ P- X* Y4 J  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.2 }' y3 U. {( y9 D; B, y! F& x
  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' U" e, q- z- O* C
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
4 H) A4 W% L& q( C9 ?2 C8 C- BSend 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.1 Z0 P. O; W% ~

5 E) Z6 m' o6 X- ~3 E! b问题:
8 P  \" s- p, A+ r4 TAfter 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 arriving2 W4 a9 }! E# K& e5 H
move into Q_wait /*Capacity is infinte*/" O  K$ _3 W5 Z
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
  w3 @  }# e2 H) d0 Jend8 g8 b' }" ~) |

* y3 w7 i/ h& \; ]4 S% I# u) AP_B and P_C is similar
( A* E+ {& P5 dtriangular 30,60,90 min: @" J: E1 a: f6 l/ Y. L: V
u 60,30 min+ s7 f$ Z. @* i! t+ Z  D2 N/ u( `
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1 f1 X! `3 f' u8 J5 ~8 v- Jin P_C, you need to send to die.
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. Q% r' d2 n6 j/ FThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.% R' h+ m; d- _' \* F# s9 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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