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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," e  V2 i( F% c) H+ [) d5 f/ r+ |
  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.) `7 w# x. R. W1 ?# u
  Loads are processed by each operator for the following time:0 I" u; _+ |6 h7 R
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
! ?4 S! F( a( r# d. B" }3 h9 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.
! j7 |; C  y5 D" G  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.3 g! ~$ Q' i+ H1 m0 l9 R
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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$ G2 u1 y' d. ]问题:
7 y# t5 Y7 E' d/ s7 jAfter running the model for 10,000 days, what was the average number of loads in each process?
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& u$ P8 ?& e& P- N不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving" k- c# Q9 R! r# [% j9 r) D
move into Q_wait /*Capacity is infinte*/
2 l& j% Z/ d. N8 ]* i6 ~* zmove into Q_process /*Single capacity*/& P$ t4 M) e( q" E7 [4 ]
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use R_A for n 60,10 min /*Resource A*/9 d; k( G6 e( _# S& U+ W$ E
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send to P_B
' n# v; I3 ]3 q1 kend
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P_B and P_C is similar+ e* ^4 [- X6 L- v9 ]
triangular 30,60,90 min
  {, o- x# n9 A  A8 }u 60,30 min2 V: p6 @# j) N9 k& K5 j% n3 \% n
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  S9 W: x& K5 L: ~/ a0 a# S1 ~
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.
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1 f( c" u& c1 }! v% B- V# o, P- \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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