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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 r+ k, Z9 K( \" ?( B. C& `  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./ k1 ]) S( k: ^" D" |; }
  Loads are processed by each operator for the following time:
: P0 ^2 A! K" G% k3 F* T  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.0 z0 C2 a& I7 u: v
  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./ p/ _6 k' O* c* C" r
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
) W& E% v. S# TSend 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.9 o* x: T0 q* M) I
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问题:
& |6 f+ R: ^. b6 K: R; e6 W; f7 z$ vAfter 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, R- p& g+ S# G$ j( V' A+ _
move into Q_wait /*Capacity is infinte*/. r7 N3 H6 H( R# [4 _" g
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/2 \3 z, \  U& u* I5 V, p3 G
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send to P_B
% [: u$ l0 s6 H7 s+ Vend
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P_B and P_C is similar
2 ~7 B$ t+ u. X, Y+ A& [8 M7 {; B/ Dtriangular 30,60,90 min  l* n6 I* i$ T. }* Z# W
u 60,30 min
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in P_C, you need to send to die.: o1 C" ?9 F! E
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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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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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