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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,: I4 j* G7 ?1 S, |+ d
  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.( A8 E0 |0 M8 H  M+ A  w
  Loads are processed by each operator for the following time:! `$ K1 W3 [, |% X: r
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
0 I5 G" l( N, ~. M0 C. Q! w4 p% h  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.- }+ [( `  [2 ~- \4 |
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.1 K+ g  ]. L& B' H2 z
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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  w8 [! y" N- T  ~  U" J问题:. q% @, d# ?  x+ J
After running the model for 10,000 days, what was the average number of loads in each process?2 Y# t$ B# Q* s* D. n

+ I/ w3 y$ X, z( r* X* ~不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
* }: B, K: K/ z8 E. Vmove into Q_wait /*Capacity is infinte*/+ R+ X- i7 i; C* F3 U
move into Q_process /*Single capacity*/
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; q, V! u/ B4 q1 B8 Yuse R_A for n 60,10 min /*Resource A*/
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send to P_B& Z; ^! I' w* f) i& Z
end
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6 h- a5 j. Y% o' f* qP_B and P_C is similar
; Q& h& ]/ o0 Gtriangular 30,60,90 min
- n; t1 \7 j7 q4 Ou 60,30 min( k) z  H* ^2 q9 \6 Z) Q4 q

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# `% }$ M$ b( ~8 z: Z/ k% vin P_C, you need to send to die.1 q; Z: \$ W) ]2 W4 }

7 x% \% a9 i$ F9 ~8 D% i. x# DThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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$ |6 e- m( L* ?6 x9 VRemember 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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