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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,
- c1 D/ n. [$ G' Y  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.
' [5 J; M" V* |5 d+ r  Loads are processed by each operator for the following time:7 @; d. ?; ?$ f0 r0 m- ~% `" x
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins./ X. e% n) ?0 Q, p. x
  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.5 H# J# R3 h* J( |- X
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
8 T1 ]$ h4 i% O' |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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: E" q- ~- a# E/ B5 Q) ?问题:4 @6 R2 J2 \* A+ J% U6 y, _# K1 Y5 G
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
9 B" T3 s7 g! Z) r9 C4 lmove into Q_wait /*Capacity is infinte*/  [6 ~+ }: q1 h$ M4 c  s
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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send to P_B+ N" v% x- ?4 I9 u, X
end
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P_B and P_C is similar9 ?* B. A, y+ i: o
triangular 30,60,90 min5 s+ }, _2 _- }6 B
u 60,30 min8 ~3 F$ L" }' _

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" z  N& r/ q7 ?7 \2 h6 Din P_C, you need to send to die.2 l. F! h0 I6 X, W0 S9 ^

( o2 b& c) F% L! d' sThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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7 g  U* M' Q( ]1 E" vRemember 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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