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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,
5 L: X% C2 ^9 b+ 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.
' Y5 Y- t7 m: o4 J  Loads are processed by each operator for the following time:- l$ |' ?! M% g' T
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
7 N/ s7 j7 A+ o1 ~4 T: P1 f0 Q- C( D  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; J# ~: I1 T5 h2 ]3 w  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
6 R9 S$ M. @  O! v  l. Q2 U0 z! n) GSend 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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/ ~. b+ \0 _3 [. U/ |5 F2 a问题:
% s+ z$ b0 n& p! Z5 ^  hAfter running the model for 10,000 days, what was the average number of loads in each process?5 h$ j  ?, N9 ~! }( I
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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. i3 F' ^0 ]& {, \7 ~9 Z0 x( \0 Y
move into Q_wait /*Capacity is infinte*/
! D% d, L  U* J2 G1 Omove into Q_process /*Single capacity*/1 s! i1 H9 r$ _3 r5 ^2 M
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use R_A for n 60,10 min /*Resource A*/
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send to P_B+ _8 }6 g3 r& x
end
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5 E: U4 P  A  A% wP_B and P_C is similar
: |; S. P2 F7 Y7 Qtriangular 30,60,90 min# j0 q3 B) g2 ]5 p! O) K
u 60,30 min  a: }- d8 X" f$ C0 x7 g+ F& c8 {

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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.. |( Q2 n& A+ }4 R- K
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0 t$ |3 M- D- Y" w# C4 T1 ~0 X; HRemember 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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