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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,, `' u! P! ?# w0 F2 }9 [
  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./ {3 y( K* Z' T
  Loads are processed by each operator for the following time:* _9 L' h& u* p2 q% K
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
0 o3 q9 \) B' G" P+ g+ ?9 |  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.0 b6 f8 F/ o1 r! }+ Z0 I
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.2 ~$ m5 ?1 ^/ k
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.3 N4 \  P' N/ h7 O, o) B
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问题:
2 e. u1 w2 x3 m5 O0 N6 H( zAfter running the model for 10,000 days, what was the average number of loads in each process?
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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
7 T! k1 K6 Q% b* W5 N  W1 R7 ^move into Q_wait /*Capacity is infinte*/6 G" N$ ?2 r2 d% |( A  C7 T8 S1 ]7 s- H
move into Q_process /*Single capacity*/. B; y3 W8 u" k5 ?! O( H+ K

8 r4 W# y& M, C! ^0 B6 y  _- w% I# zuse R_A for n 60,10 min /*Resource A*/
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+ c$ l7 b. y! Nsend to P_B% A# J* {, f% E* |4 B
end4 z0 Z* w* c9 H! K' }' j  p' F
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P_B and P_C is similar3 F1 \8 R3 X; {9 U( z/ K
triangular 30,60,90 min; V7 z  e' ?: w; t! U- }
u 60,30 min  Q. X( E: a- D' Y+ B& Z3 ?

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% f& e5 e; E: a7 {" ]2 lin P_C, you need to send to die.2 r' p3 L& l4 T/ E$ j

! w* b! Z; v# _9 e9 \" b8 {% o5 M  XThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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* I! A; k! |; h2 ]0 z. F" u- M3 p! {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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