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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,' I7 l9 Y( k8 ~) R- B5 s
  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.  p3 X$ H& \: m9 G# _
  Loads are processed by each operator for the following time:
2 }+ S5 E  Q$ X3 a  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
. q% P4 A+ g. f# I: 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.
8 u; `9 M* o/ ~9 A  _/ C  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
# D  \) F, l& \# i  w7 d9 h, pSend 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.- ?$ E4 R! w5 |. O
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问题:7 n! U9 V0 Y0 `5 Q4 q) ?
After running the model for 10,000 days, what was the average number of loads in each process?
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$ x& s+ V' _! N! {/ o! M不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
% T0 ^4 O: P" Z# I7 {  l0 c- amove into Q_wait /*Capacity is infinte*/
: n9 I+ \: ?+ k" g# A5 {move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*// W' L3 k' I( O* p0 Z  M+ a+ [
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send to P_B
# _( ?* w3 g" @$ J* _7 U/ a* [end4 W. M. W+ m! [, c

& q& O: k* S) A% ^2 l. i& `  oP_B and P_C is similar
" t  g# J. {/ otriangular 30,60,90 min
' P  s1 O9 v) U6 vu 60,30 min
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# z2 _$ q+ ^" K6 I" C9 bin P_C, you need to send to die.
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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.7 M% F7 [  T( O0 x6 x2 u
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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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