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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* e4 J/ _5 @; Q2 U
  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.% X  E* T- W- A, t8 `5 i0 S
  Loads are processed by each operator for the following time:
/ ~* ]7 I6 @9 H/ R/ T  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
9 q5 F: @& k# j, A! m  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.
6 D7 q1 B! K8 p7 r+ {' d) _, n  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
1 r, I' R$ v5 ]2 {# aSend 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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3 M9 K$ N; m+ `# x, v6 j问题:5 |) d/ ~' m2 S, P7 ?1 s
After running the model for 10,000 days, what was the average number of loads in each process?
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( X% E- i0 [) a/ G- f2 A不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
  I# O, K  ?& ?5 l, gmove into Q_wait /*Capacity is infinte*/; y0 ^* ~4 D" R
move into Q_process /*Single capacity*/
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1 a9 \0 U7 Y8 y/ o, h. q1 Guse R_A for n 60,10 min /*Resource A*/
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% k. F( D. D; d1 i) q. f' Asend to P_B
4 N$ c- c& U7 l* P1 k0 s  x4 d% Pend! T1 t$ E/ V3 Q: M# T2 o& z
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P_B and P_C is similar3 q* Z. C7 Q) p' x  _
triangular 30,60,90 min
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% a. L. e4 S; p/ v% vin 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.: h& b+ F6 ~1 v% U7 i( V! D

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& q% x  X9 _& Y6 `) eRemember 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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