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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 M) S2 i6 P: t  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.6 R/ j9 y. Y5 g4 r2 b, D
  Loads are processed by each operator for the following time:
4 w  g- \9 V9 H3 |) I  U  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
; a, q" _0 X* |* X8 P) {  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.! D$ z! F- T6 F% Y# s) c( e
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.' n/ ?: e6 u+ 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.
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问题:0 h, O* Y1 Q0 \4 @# a  ~, {* }
After running the model for 10,000 days, what was the average number of loads in each process?
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7 {( z' Y  J  l& `1 T不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving8 c4 ?% Y, R  a
move into Q_wait /*Capacity is infinte*/+ q3 J* y2 N+ E: B
move into Q_process /*Single capacity*/! h, e, e8 _+ t! S" r
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use R_A for n 60,10 min /*Resource A*/. z0 ?$ h* R1 p& x3 _% w2 I& ?
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send to P_B
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) J0 O7 G. b% f: T1 P0 ?P_B and P_C is similar+ R. r1 C; A' R' [8 m1 \
triangular 30,60,90 min
! v( q4 ?5 c9 m5 r/ R* Du 60,30 min( @& y( L4 G) _( Z

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& h4 p7 D9 r6 _# Iin P_C, you need to send to die.6 Z: z+ ]! N5 Y  v  t. `! O% _% W
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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.# j" b( J2 T0 N2 _, y6 R) g

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8 {' e4 e( `, y, e/ D, v# d8 gRemember 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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