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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,
8 y% N0 m! T" p' u0 ?  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.. R- ]7 d7 H) e$ v& k2 w
  Loads are processed by each operator for the following time:
  T" b1 |3 D% [  R8 D  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
: v9 a) h5 _" ^6 S2 F$ j8 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.
, g( `' m: X5 `  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
( v& @: p4 W( [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.6 Q9 j4 k8 h; w( M

8 J3 N( G) G9 @7 Y) s问题:, s3 D. A5 D8 V  c$ ]2 Y# I
After running the model for 10,000 days, what was the average number of loads in each process?' f6 G# y3 H* x/ }
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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
. _% R9 T% M( m, t1 |move into Q_wait /*Capacity is infinte*// E5 `. k4 ~$ Q4 Q
move into Q_process /*Single capacity*/
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+ Y7 }/ |9 ]. ?' N' s! H! e4 Vuse R_A for n 60,10 min /*Resource A*/. d& J2 d- T. G! p9 w% V( ~
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send to P_B
0 o4 X/ l7 D: n3 u: Fend
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P_B and P_C is similar/ a- v/ B/ O$ \: a! s
triangular 30,60,90 min
* q  Y+ D8 y( ?: X. ru 60,30 min
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  f; n9 X0 w" x+ R4 w$ uin P_C, you need to send to die.' D# _4 W! f& N. a8 q
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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.9 x& h; d4 S/ d" s

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$ J5 Z4 Q) U& T) CRemember 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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