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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,
- i# a# a" q# p  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.( v1 Y+ X3 i; S. X
  Loads are processed by each operator for the following time:
1 k) Q. [  [8 f0 q  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
* l# E) W: w% P6 J) V% @" @  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 e1 S, u$ J% T) Q% J; B
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
1 a6 z7 ?* d  l7 N6 t& X! OSend 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.7 w' Y5 d. m3 X4 W& ~9 P1 B' R, U. M
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问题:; w* {2 c# \) M7 B* O+ L4 I  o
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 arriving
+ {4 T# a( y# d' K9 s+ G8 Z# ]3 G, hmove into Q_wait /*Capacity is infinte*/
' S( O, v# ]: P& |/ Nmove into Q_process /*Single capacity*/
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5 o1 V) i' c4 D7 p/ k* a6 buse R_A for n 60,10 min /*Resource A*// d; V, C% t- k+ R; ?. `5 K

+ v- p2 a5 D, Q; x3 ^- `send to P_B) q6 |, y6 ], x0 J, I
end, L9 H" l: K$ ^. U* L4 X/ n
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P_B and P_C is similar2 ]5 Q0 |: ?$ I1 Z+ ~% A  ^
triangular 30,60,90 min4 ~* s2 A" @- ^5 k* H. z- }' J+ B
u 60,30 min: O& M+ H% w& h/ r

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. h4 Q$ b1 h5 ~  {" l+ }' h9 _in P_C, you need to send to die.# ~7 _- D2 k9 h. J9 s) ?! I

; J+ l0 c/ E8 O# TThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.1 C5 m! ^: D) h8 W4 y

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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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