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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,
  G3 d+ T# q" z  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., _1 ]6 k. u, b% o6 z3 w! H4 o, \
  Loads are processed by each operator for the following time:* J0 {/ x+ d( H
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.. w. U; i2 {* X! f7 }+ 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.
" v* ^5 g, V0 Y  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
5 M' G4 Q" M  T( ?# kSend 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.# H9 r: H5 E1 t6 ~
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问题:
) I% B/ z6 X+ E) dAfter running the model for 10,000 days, what was the average number of loads in each process?
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发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
7 ]& _7 x" a0 w) umove into Q_wait /*Capacity is infinte*/
8 o! Q" z* Q* F- Omove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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( s# U, u- D" I2 G* F& w1 Dsend to P_B% @: M) @2 Y% z. R/ n. e! u
end
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P_B and P_C is similar; p2 {* d" V) N, U/ l) R5 G
triangular 30,60,90 min; o! l- L% _+ O5 S3 M& J  @
u 60,30 min
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in P_C, you need to send to die.
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! s2 ~9 Q6 E9 |( j- 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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