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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,! ^7 t4 C3 U: [: N6 a
  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 F1 c3 ~3 @' e% _, j5 X
  Loads are processed by each operator for the following time:( R! B, [7 m5 y! d2 O+ a9 M. L- A
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
8 o! t7 [' F, O. l- 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.
7 w9 R$ Q4 j( E+ r  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.. Z) W* d$ z. s4 s+ W! w% D
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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8 L4 A8 n# v. ~8 ?" L+ r问题:
& E: _3 p+ P2 LAfter running the model for 10,000 days, what was the average number of loads in each process?0 n1 ]9 W! ]# l+ V

  n8 J* P3 _. q2 K: J# C不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
4 P% v# O( ]* l7 G! Emove into Q_wait /*Capacity is infinte*/' n. ^3 K! t; y3 ~+ _8 P2 Z9 e
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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% ^4 w1 p1 ^' e: ^7 f* j; Gsend to P_B
! v0 t2 F) m6 B+ jend! l/ g5 u& ]7 j4 Y

+ M" O+ {2 i3 P* B# o4 fP_B and P_C is similar
; D/ Q8 N/ n& z' E0 s' g. a& V) ttriangular 30,60,90 min$ o6 a$ d! T2 r* X
u 60,30 min
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% Q5 r$ G6 E" g6 {8 B4 pin P_C, you need to send to die.% X, t% d& m  H
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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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+ a; y& i- e& i9 s$ Y" qRemember 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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