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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,
7 D) y2 n1 Q* n7 B5 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.
6 o& k$ g; N6 V; s6 a% k( a  Loads are processed by each operator for the following time:
& `# U. _* V, X: s. G4 W( @! U. p. U2 F  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
0 y+ `  a+ o* F, l) _9 y# A  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.. V! w/ A2 w+ I. ]/ U1 v; ]
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.7 A8 x$ y! y% F
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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问题:
* o/ W9 b1 U" `: G' P, c/ `; Y3 {After running the model for 10,000 days, what was the average number of loads in each process?
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/ v/ x5 R4 B4 N3 t8 C不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
2 y! ]8 ]+ }. i2 ^# N$ emove into Q_wait /*Capacity is infinte*/
& ]7 w' M- D1 b) L0 `move into Q_process /*Single capacity*/
6 H) E$ L$ \& B5 _. Y* p6 A, q
5 G, S% n3 t% r, Xuse R_A for n 60,10 min /*Resource A*/2 J; r, O/ G9 I
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send to P_B6 J% A3 B6 o! U- K! Z4 c
end
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P_B and P_C is similar  C1 |& i6 U9 j0 k! l
triangular 30,60,90 min+ t2 S0 k6 }$ H- j2 I/ X# K
u 60,30 min( |) d  G3 F4 |) a8 p

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in P_C, you need to send to die./ p. n3 ^! E3 B5 a1 d5 y% V7 {

+ H1 g, H5 d) _  S% q) h% W' s- ~" vThen 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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