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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,0 R, M2 {2 `5 _( J/ A% k( S
  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.
. z0 W. U* F. d+ M  Loads are processed by each operator for the following time:
6 i. a) Z# r  c  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
( y  B. @- A5 i+ V4 ?  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.9 D4 w7 z+ Z- I0 A" u  F
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.) m3 M* U- }; t& w; Z5 k: 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.
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) z. ?2 ^/ A/ B3 Z  R  K0 P问题:
. F1 l) f; Q& ~After running the model for 10,000 days, what was the average number of loads in each process?
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$ I; `$ ?0 T  w. y5 p4 \% y不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving% H8 x! S% Y: i# z: |" B
move into Q_wait /*Capacity is infinte*/
  m! |0 {( Q3 o; g  e* d. r& t; Dmove into Q_process /*Single capacity*/
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, v. D& |# m3 H( o, t: ~use R_A for n 60,10 min /*Resource A*/
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send to P_B* P+ T/ v2 G8 ^
end) j8 d. y' n. T  D3 E* s, F

* k* i* E8 y8 `) Q) TP_B and P_C is similar7 V9 t& u; j  A9 p! x6 o
triangular 30,60,90 min
/ J/ L. l. H1 X5 x8 S7 y; Y3 au 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.7 k7 H0 N2 E8 v* G5 M6 C, O& o
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6 e4 }+ x- a$ v' f5 B% n- kRemember 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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