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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,6 w( E' l" R; W6 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.: J/ ~- }: Z" r3 Y0 d- ]
  Loads are processed by each operator for the following time:
. l0 ^  V2 j& m  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
$ I$ ]/ [' n  `( A6 o+ y0 ?  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, b/ J3 T; E# g' {% z  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
) U& e$ P( {& I- `) ?! L/ GSend 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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4 Y" ?# Z7 n' s( }/ v( A问题:2 M0 e2 v) a5 H7 c+ h( H
After running the model for 10,000 days, what was the average number of loads in each process?
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/ ~& J/ V8 b9 W/ \, t不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
% l) i  u: b* x' v; g4 B3 }move into Q_wait /*Capacity is infinte*/" O' b9 i6 ]7 v, y2 y
move into Q_process /*Single capacity*/  A8 N0 I6 s4 h

4 Q+ h" ?" \6 a0 c1 ^use R_A for n 60,10 min /*Resource A*/
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5 L  A, j( k/ [% h3 A3 msend to P_B1 [1 t0 m+ T2 j1 d1 i
end6 Y/ c; O7 V" T, `! \

& \/ I( r! w: [6 c# ]P_B and P_C is similar" H# v0 h8 e8 c  ]* V7 _
triangular 30,60,90 min
  h  t# x) `! w! X* R1 M' N/ [u 60,30 min
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in P_C, you need to send to die.  X( p# J" p* H

& j. [& |2 `" O1 RThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.$ f2 E3 h7 t' G( _, v5 Q
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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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