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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,9 `; j/ L+ l; I: @- l* M
  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.
& Y3 c/ g& C5 A- E% l1 @; n3 g/ |  Loads are processed by each operator for the following time:& S  ~7 I+ n1 @" H: v
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
7 j+ Y1 r0 l* w- P3 w8 c" }# D9 J; z  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.1 Q- q" n; Q; [
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.8 K; T$ n8 B6 u& t4 k
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.! Q- I$ e' b/ Q$ Q- l

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After running the model for 10,000 days, what was the average number of loads in each process?( e$ `9 I3 J& D
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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
! ]+ c, r) A+ \/ Fmove into Q_wait /*Capacity is infinte*/; u0 Z' d# ]- m: X; |
move into Q_process /*Single capacity*/' A$ h, J7 K" W5 o% r: I
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use R_A for n 60,10 min /*Resource A*/
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send to P_B. x$ ~9 T$ T4 B3 t) n5 [& B
end. M/ ~& R0 \8 X+ `
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P_B and P_C is similar* T& {4 F. t8 v9 B3 r7 h' ?; \0 C
triangular 30,60,90 min
9 @  N: c  l( }: v5 ^, T8 V9 [u 60,30 min; r$ e/ `4 w- Z3 |' q- q

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in P_C, you need to send to die.) l+ y; B% H9 \  P, O8 ]
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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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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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