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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,, K  ?% U7 z6 N% p6 m  c/ M' g; U
  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.* W: T. I7 t5 R4 {0 S7 a' i6 A
  Loads are processed by each operator for the following time:- X' n% i. s) g6 R
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
% v  m4 V6 {* @0 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.
( G* f. U1 h1 s9 m  X, c% L7 I4 H  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
% Z2 W: u  n  h3 f+ j, x- i( b9 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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& @) n& u* V  O! J' G5 x, w问题:2 s5 D$ ]% P' l# B1 x
After running the model for 10,000 days, what was the average number of loads in each process?/ Z' b. l; }% D5 j" s

( p. u& e# Z- ?" ~不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
8 l1 g; S$ U; @; x- J$ rmove into Q_wait /*Capacity is infinte*/
9 J4 t- l, C% N: b9 K4 x% o' jmove into Q_process /*Single capacity*/
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7 Y% ?; N' q7 G6 buse R_A for n 60,10 min /*Resource A*/3 B6 e3 u  g  ]& K

- y: l, ]% @& }8 u* vsend to P_B
( |% E9 i6 y/ m- T" B) W1 {. Nend
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P_B and P_C is similar0 }9 O# l0 n) J, k) [9 j* ^4 o6 S
triangular 30,60,90 min
" I6 v4 [) z" N- W" Y# \* Uu 60,30 min
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in P_C, you need to send to die.
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# i5 l5 C& c3 N# M' v+ c0 Q6 sThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
7 s/ q6 {4 C* L2 C/ @% }. ~& o' g6 q0 e9 s! ]

9 `3 H" y) z' J5 r" M/ c# 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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