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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,
6 a' g% W) t3 {( z1 n- U' E8 T  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.2 k! z& j/ p6 u7 V
  Loads are processed by each operator for the following time:9 V1 l3 ]* n1 N8 n: }
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.( X9 w% C$ W& k# f: M" A  ^3 P/ J  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.
( a9 D$ Y  {; Q. v  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
8 O/ W: S6 ]5 ^4 V! L5 [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." t7 X  G% n8 S8 O- e

7 d2 ~7 o5 w5 A4 i# p问题:( s# l3 ^/ a, Q0 M- P* M1 ?
After running the model for 10,000 days, what was the average number of loads in each process?! n. [' r( Q. o% ^0 t% K

2 o. Z3 q; Y8 u7 T$ g) t不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving0 T0 r* t2 U& |! m! M5 \. e! u
move into Q_wait /*Capacity is infinte*/- p) A" D; J1 T. }% J* M
move into Q_process /*Single capacity*/
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: z! u' k4 ^" J- Ause R_A for n 60,10 min /*Resource A*/( n9 j: {/ R/ G+ z7 f" J. D
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send to P_B+ U* |7 {: C1 h% e8 h+ ~
end
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. ?. l1 ?* O1 D7 l9 c( e. u# KP_B and P_C is similar: |5 _2 P# F( p$ S/ W
triangular 30,60,90 min& E7 O/ B7 l( X+ \2 L5 ]6 z
u 60,30 min
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in P_C, you need to send to die.8 u. s( K) A- Z; x% A0 Q& G
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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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4 o( t0 y6 n7 _8 P2 O% h0 t* dRemember 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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