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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,1 u  A3 F' W, p- x' W4 T' p8 R
  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.0 ?( J  a/ _9 t) w4 ]% w6 D
  Loads are processed by each operator for the following time:% a) b1 s% z0 _/ c, `
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.* x4 j/ d8 G* r/ |% J
  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.
$ F, @- |  o, \7 I  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.3 J. H( o& U+ x
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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- k+ |( v# |* K/ Q: N% m) i问题:8 J4 Z; y% z9 l$ G9 K
After running the model for 10,000 days, what was the average number of loads in each process?
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发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
% M9 J. v( {0 Bmove into Q_wait /*Capacity is infinte*/
5 k! Q( p3 e- v1 Z6 V& I% }* ]  Rmove into Q_process /*Single capacity*/5 O4 D& \% d3 S7 U9 i$ d$ S

8 h# w/ a+ B, x  ruse R_A for n 60,10 min /*Resource A*/
% y) M! |( B  j
8 Q' H$ k+ h4 K6 F; [% d# Fsend to P_B# w0 o# v* S( R& w% q# k6 ~( e
end$ L% ^3 r  r& y. p, R

$ Q" R5 x2 k$ J# TP_B and P_C is similar
6 i7 ^7 I& p0 R! c' p1 \5 }  striangular 30,60,90 min
6 a9 y0 w; u" k7 ru 60,30 min. K9 k9 L1 f. T* R

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0 P# I7 U) p  b" E" p$ w/ _' Oin P_C, you need to send to die.
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+ N7 O" P5 }" a2 ^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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