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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,
+ Q$ r, x; a) m5 q. q  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.
; Q$ j. ^2 Y3 m. x  Loads are processed by each operator for the following time:, w" |1 m6 \- o4 f" ]. a
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.! l, r, t. i* s& ]# g. s
  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.% d, r  s) Z4 j& A6 t3 A
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.' H: u- H8 Z+ t1 _
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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问题:
/ f1 T7 u, p/ _After running the model for 10,000 days, what was the average number of loads in each process?
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# L' o: Y2 b( j& n6 Y3 y不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving  }: I5 m8 B7 s% v4 O' a9 E/ m
move into Q_wait /*Capacity is infinte*/: l/ }" ~% w$ P9 Y
move into Q_process /*Single capacity*/+ ~2 o; l* C. m8 p

& v" e0 x+ B3 ]  r! {- d: `use R_A for n 60,10 min /*Resource A*/
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8 w* m. c. Y; W% Q- bsend to P_B$ k* c; y- t1 [8 L- B& H
end8 g, {3 W# y1 J6 @# ~
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P_B and P_C is similar
9 \  J9 g2 t1 j6 m! qtriangular 30,60,90 min2 o) u; h# f2 T0 ~$ W, X! }
u 60,30 min4 F. j5 R7 ~" R# X9 h5 ~5 F
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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.* z) V) [  u! v2 n. D
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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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