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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,
. @( P, Y, f8 S. ^  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.! j. h) V/ f' O. P
  Loads are processed by each operator for the following time:
$ i1 Q+ B% U& h5 H4 k/ P  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.4 R+ ]- i& ^1 T9 h
  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.
- O- G% Z. j. e1 f4 e  s  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.- ]# ~# C# y- h% \$ ^
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.
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问题:
3 [2 b) e! C" {3 C  J) {% EAfter running the model for 10,000 days, what was the average number of loads in each process?
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  Z( M- j, o) W9 L. r6 U8 \- W8 y不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving* e2 J2 Z7 k, z' [5 p$ Z1 u
move into Q_wait /*Capacity is infinte*/
& l( \1 M5 U  [* X# W0 Amove into Q_process /*Single capacity*/
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, x6 G1 ^0 b  V" \/ R8 nuse R_A for n 60,10 min /*Resource A*/
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send to P_B- r# o! |3 B$ r* C' d6 x! C
end/ ]+ \7 P! Q  J2 c$ K1 e
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P_B and P_C is similar
; Y$ G. A6 V- C; Atriangular 30,60,90 min
' O. ]1 v* j" H& _, K0 I2 yu 60,30 min
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  n2 Y9 p" D; g  iin P_C, you need to send to die./ M" ]6 Y1 G8 X3 }. {

2 `: c4 j. P, M7 L0 A* N1 ^Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days., ]1 T( v: }! M% N0 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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