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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,
4 T; ~* ]% ^/ i8 a' \  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.
) i+ s1 c) I/ V( l4 y( [  Loads are processed by each operator for the following time:' \0 c% ^8 G2 H
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.7 \& R. o! D& g& N+ m
  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.: R/ s& o* h: L- z$ C. p" m
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.! Z6 h/ V9 [" h
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.  ?/ z9 @  v/ I0 T6 ^# K9 C" `/ }7 O6 f

* D) k9 u& h! \$ \: L2 H+ E# @问题:/ ?$ i! @4 k3 E' v9 X* Q1 t: C
After running the model for 10,000 days, what was the average number of loads in each process?' S  l. f4 F5 W* X% a
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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% [0 x/ Y* D/ e( S+ l
move into Q_wait /*Capacity is infinte*/* o. D4 ~' g0 F9 c
move into Q_process /*Single capacity*/' F$ q/ c* t9 q* a7 m- ]
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use R_A for n 60,10 min /*Resource A*/$ \8 W! O. P+ {& c/ ~4 Q( o

) f2 A$ @$ Q+ osend to P_B
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P_B and P_C is similar
  t4 D/ u: w# x7 V0 m! t% gtriangular 30,60,90 min
" v- Q% v, ?7 r1 v: I! [7 Pu 60,30 min
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# B  j: u) ^3 {$ ?3 rin P_C, you need to send to die.
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1 t8 B0 i( @# k+ Y1 HThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.! O# D- x8 j$ x1 Y( R6 e; _
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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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