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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 d# ^0 ]# d8 L0 v4 P9 Y6 d/ i  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.# z9 ]+ ~& z/ Q! D0 T( h! ~
  Loads are processed by each operator for the following time:
' ^7 u+ T) [+ L* `  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
$ k* o/ B8 f( _! s0 T+ _  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.4 E" f7 F9 i3 G3 f
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
) }0 h; e" W0 s9 HSend 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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- Y0 w8 d" n' V3 J3 |问题:
( L1 C$ T( `& v- ^9 `After running the model for 10,000 days, what was the average number of loads in each process?$ Z) C2 N: v  j/ F/ w

* s- g4 m2 _+ x) M不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
5 t3 ]3 Q' X. s0 D" wmove into Q_wait /*Capacity is infinte*/6 E8 d! s5 @) f; j, f8 a
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/" \% \! A' Z7 d) ]4 v- p) W
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send to P_B
$ F/ _; i( E# Wend
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5 W9 p% Q+ b$ j) `; R+ w* UP_B and P_C is similar. P2 \' ~% b) D0 i& d5 Z( d
triangular 30,60,90 min, e& c7 o. M! C$ c# u
u 60,30 min( n! U1 _0 \" l) f0 B
* s7 d% n8 X& F( w

  |- E  ^' T$ }. B. E7 ~  jin P_C, you need to send to die.
. A0 Z+ U( E# u: y+ l, ?
. V1 w3 L; s. CThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.8 g$ K1 D) J6 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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