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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," d1 |/ w/ l& o0 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.7 E1 G4 D  y& _" ~' k2 L
  Loads are processed by each operator for the following time:; }, N* ]- h% x9 `; D- h
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
6 R1 N6 L2 D2 g  u2 }8 I3 z) ]. w( R  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.
8 c. X3 K4 h. u% m  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
# H7 k# B: q, L* [- l+ kSend 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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6 b6 ?. J$ g1 I! F( ?1 Y问题:, L4 o5 s. W, s. A1 W
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
% Y- _! F7 o4 F0 s+ tmove into Q_wait /*Capacity is infinte*/
5 c4 O6 O, ?  F$ Y* a9 u: Q& smove into Q_process /*Single capacity*/6 j. {6 J2 o) v0 e; t

7 A  G' O1 I7 z% {5 Wuse R_A for n 60,10 min /*Resource A*/5 o- F9 ^+ v* ]( x" H+ ~
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send to P_B+ k8 z$ U2 w- X- _$ l
end
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5 z- r, ^4 p& l$ BP_B and P_C is similar
+ {( D4 z* g( C. l8 v9 \* ?* E( S5 ?triangular 30,60,90 min
# v% L+ n2 Q3 m2 x+ `1 P2 o4 lu 60,30 min4 w5 Y4 [/ _1 E# o9 o
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# |' Y( Y% |3 E% e& `. c: n& win P_C, you need to send to die.
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1 F( \# B9 X* g7 [. hThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.: y" u% h! P7 S; A) A8 t6 n0 W
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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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