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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,: }5 ?: ~& }  q6 _7 L- F2 L, \% L
  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.
( {- b+ ~  w! }8 Z  Loads are processed by each operator for the following time:+ Q. I* m5 r" u. h: |( Y9 z
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.7 I7 g, R4 n  B& q: 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.
" G# ~  Y% U  M3 F  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
* H. u$ ~2 m5 tSend 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.! f6 Y( O. y0 w% D
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问题:6 U& q8 M1 J8 C7 ?- N
After running the model for 10,000 days, what was the average number of loads in each process?
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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 arriving1 @9 T3 @$ k7 z  m% ~- q
move into Q_wait /*Capacity is infinte*/2 d% Q& J, _. q2 W- z$ T
move into Q_process /*Single capacity*/6 E( Z6 e, q$ r) w$ `

- Y: c1 t; g4 quse R_A for n 60,10 min /*Resource A*/5 B: N  L; @: |+ w* p
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send to P_B
  x6 W% C% l1 S" c  vend
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P_B and P_C is similar" J9 X  d6 s5 E7 }. R7 ^, L
triangular 30,60,90 min
5 v( F: r: ~1 n% Uu 60,30 min
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in P_C, you need to send to die.9 g/ E- O  ~1 O9 @/ p

5 @3 ?5 X. m" h4 A" jThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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! U6 Y& r2 d, l% \8 J9 J1 `& d5 G$ mRemember 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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