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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,
/ l* e( q  t, f7 X+ v  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.( \5 [5 \. \+ o$ e
  Loads are processed by each operator for the following time:
0 B& p' \" }' e9 K6 n5 D  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.; ?$ |2 x$ |. c$ P/ Y4 e
  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.# ^5 Y, J4 x0 N& G( n
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
1 C, z8 N" E9 f& w9 WSend 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.6 ?# F5 t. t  j9 j
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问题:# M7 k. ~* Q; P3 {$ z- p
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 arriving4 s( k" y1 o0 x: s9 U. T' t6 U* l, ^- K
move into Q_wait /*Capacity is infinte*/
, m& ~: U, r% ]: d3 ~" V5 f* Bmove into Q_process /*Single capacity*/- m# l! [( k! j5 D1 l& p  L# _
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use R_A for n 60,10 min /*Resource A*/" L3 K" f6 ?. K5 t$ i0 q( m# h
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send to P_B* E' H  n% O: E# z. G, T" c
end* O# b7 }; H, C, O0 B. E
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P_B and P_C is similar! Q6 K& M' [3 P& k; c! j
triangular 30,60,90 min
8 H, D) i! d' q+ r* m( r8 Cu 60,30 min& r6 ?6 o/ }, C" c
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in P_C, you need to send to die.. B9 B$ e1 Y  B: N4 H6 V4 e
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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." C% m2 Y/ q8 S) D

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0 A8 U3 e0 Q$ e; [" R1 @, f" s1 IRemember 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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