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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,
6 Y( o9 A, x# E1 x! H, E& 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.
- R: o6 E5 Q) L" [  Loads are processed by each operator for the following time:. n% S! ?* T8 E7 o8 Q/ V
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.6 ?9 X7 c' s( t  ]
  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.
/ C1 ?! n1 u% y, _3 R  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
( d6 ?7 w5 C8 T/ X) XSend 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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; g& Z6 x- t2 N问题:8 g5 B9 V8 j' }  m9 |8 [8 b+ k
After running the model for 10,000 days, what was the average number of loads in each process?
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3 p8 s. o0 L+ Z( {" T3 n2 F; }; Q不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
" r. o8 V$ n7 s. R$ d, x1 hmove into Q_wait /*Capacity is infinte*/* M  \$ @. k0 B/ r7 X$ e
move into Q_process /*Single capacity*/
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; h( Q- i0 H! \. ^+ Muse R_A for n 60,10 min /*Resource A*// s, \' J& H+ \! D' _& b

8 I: G( x/ {2 o$ h/ f2 ^) gsend to P_B
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P_B and P_C is similar9 A6 Q! _* _: h
triangular 30,60,90 min
& Y, U5 l3 B4 U1 Nu 60,30 min
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in P_C, you need to send to die.# e8 r# s& R0 x4 S
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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.4 x, d* d9 y+ d/ ~7 T' p0 [

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8 Q+ @3 B' Q2 Z1 ?% uRemember 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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