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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,! C2 p$ W2 r1 V/ M! J
  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.) D  k# ]5 s4 F- y, Z+ D
  Loads are processed by each operator for the following time:. w- X# B8 G1 p3 {, b% U" W$ z
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
2 a3 |1 Y# I8 X' C  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.) Q/ P" b: G9 t2 r$ V0 u
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins., _0 [5 t; _" t- c  l
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 f$ x1 g0 v' p, H) u& @
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问题:. B# e* a) d  d: y5 G- P5 W
After 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
# S& q) V+ y$ L4 ~) U# F7 Z# Z1 }9 Dmove into Q_wait /*Capacity is infinte*/( |' d5 w5 @  m. T3 h1 {8 p
move into Q_process /*Single capacity*/
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+ V/ T7 p+ [, l. A" [% q/ i& ~use R_A for n 60,10 min /*Resource A*/; B' `; l+ a, y$ A( n

& Q8 v# c: Y( X& n! zsend to P_B# n( V+ c) ]4 I9 {& Z, D- ~
end
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P_B and P_C is similar9 S. A$ t! Y/ K% g) h
triangular 30,60,90 min
& L: R. m1 ^& E3 Ru 60,30 min
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in P_C, you need to send to die.
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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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+ K6 F* V! q2 \; H) z, b5 `! xRemember 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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