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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,0 y2 h5 w# f0 _( z* [  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.
8 D8 M$ [0 g0 x! K7 X. p  Loads are processed by each operator for the following time:' x, z2 e& N  t
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins." i- u! s, h& v1 I
  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.
& L2 g. G9 S2 Z! \  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
1 c; n; l  g1 O( M% ]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.& h# `! W- _! f9 [

8 f3 \$ d# Q& Y问题:
. X: ?8 W/ e4 o2 l  `After running the model for 10,000 days, what was the average number of loads in each process?5 F0 y6 s4 {" g8 r

6 D2 v; W% u& Y! S  V( z9 r不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
1 p4 ]8 r" ~1 @3 C, X! d7 n% {move into Q_wait /*Capacity is infinte*/! l4 W* y$ ?+ Q6 a6 e8 |' O) l* A, E% r
move into Q_process /*Single capacity*/  j: d& {6 V. Q# x# n/ u7 `, O
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use R_A for n 60,10 min /*Resource A*/
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; z: J  S7 T8 tsend to P_B
5 a' ^& L4 y. V- v1 Send3 E* @! C* F# [. p& i

& l8 y7 v7 ?$ Y5 V0 TP_B and P_C is similar
. j5 R" G) E6 g/ F. y9 S$ Z6 Z9 _' ?triangular 30,60,90 min
; F1 y7 X9 j  ]; ~u 60,30 min5 P/ K1 }3 G( x8 j
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) m& S- g  y$ n" [& L) @in P_C, you need to send to die.
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/ M& D  F. ]4 F  bThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.  r. X  G0 F( x3 e8 [
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# x- u: H7 Q3 j# b6 e" CRemember 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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