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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,/ r3 |* }% H4 F5 K2 [+ U; p
  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.; K( S. `7 l  c2 m
  Loads are processed by each operator for the following time:
0 T2 z! F( _; n1 O  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.& \9 f# j! m! _' Q% {/ b* K
  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 X" r/ f- M# q
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.- J, W: u2 R. P: v
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.' e, Q& f, M! r. _. r; N! d0 _

' T3 n# a- X. W4 T' X' M  i问题:5 U" J! c- _  w" i3 G
After running the model for 10,000 days, what was the average number of loads in each process?" A2 H3 R8 Q. Q

* P- S; Q8 T; q3 C5 v不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving) v0 ^& m) d$ h% b, H' q
move into Q_wait /*Capacity is infinte*/# P; V. W4 N9 _: _. u$ Y0 H
move into Q_process /*Single capacity*/
  I4 p/ F$ s# O/ G/ r/ I5 a. g! C5 ?; u, I6 p5 N5 U6 P3 s7 E; T9 {, N
use R_A for n 60,10 min /*Resource A*/( i, q2 K/ W8 h/ V! P
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send to P_B
: {! U0 S5 v/ Y6 @end  V4 n' z$ `( X0 N

7 h. _; |4 o' y9 A2 ?% UP_B and P_C is similar
0 s7 a7 S& I3 Xtriangular 30,60,90 min
: t9 X9 B' n7 V( K! ~1 Ju 60,30 min
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5 g% k- l, j: d0 t5 ]6 O" z, ~( b- n9 z( b0 |8 K4 }, a
in P_C, you need to send to die.
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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.
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1 N) p2 F* ^! |/ e: lRemember 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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