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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,
) e, W8 @" v+ x4 W7 i  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.
) F  z6 _; F* q, u: N" W  Loads are processed by each operator for the following time:* T' Y1 T7 a0 `8 p. `
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.  @8 {- A& z$ D- A
  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.
0 x8 x$ z' o) E+ b/ h" ^  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.+ D0 i9 l* U) ~/ g" f
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.; f1 ?2 E, z# i& Z" S* B, c2 A2 \

9 Q: Q" s2 p* E* e4 p$ \问题:/ e# |1 M% p) B8 i
After running the model for 10,000 days, what was the average number of loads in each process?
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- k* ~! o5 T, t0 d5 V不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
, _1 o" M' N, R" n1 P6 N) s2 {move into Q_wait /*Capacity is infinte*/
/ D4 v# c  c3 _. \5 H' y- i) b. mmove into Q_process /*Single capacity*/
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5 \( F0 k& O- y1 w+ kuse R_A for n 60,10 min /*Resource A*/
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send to P_B' X/ [) c& _& u3 w9 f
end
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0 l5 s  p) ^; a- i' U. S2 y! }P_B and P_C is similar
0 q0 r: D7 [0 e' [5 g! Otriangular 30,60,90 min
# X0 x, w8 c9 ~2 t: Z0 G- T/ ~u 60,30 min2 ?2 }) C( ]1 j  v$ h' Y0 c

# ]8 t$ X8 F. P9 j1 f1 c: }- W) h
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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7 P) c6 [" u$ j* c) J' z4 a5 rRemember 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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