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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,
# K# \  _  q! u( V; r0 X  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." ]$ w5 Y  ?4 q! g1 s0 ?
  Loads are processed by each operator for the following time:( |9 K+ \. m' Z( E
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.2 i7 P: c% s, j. ], G! u# {
  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.
! \: Y. v4 T! z  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
" ~0 e8 C/ B' o6 K8 l4 U$ hSend 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:* Q% L! v3 H4 `4 V. {
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 arriving9 _# F9 Z7 W8 h/ s  `6 B
move into Q_wait /*Capacity is infinte*/! {7 p# |- f; C; y" v
move into Q_process /*Single capacity*/
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9 ^- ?" V7 q" l; T- A5 {use R_A for n 60,10 min /*Resource A*/" ^) M- Q5 [' }
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send to P_B6 v0 O- @# ^1 @
end
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5 e% k/ w, i( c& w# p# O5 qP_B and P_C is similar
) z/ Z1 E# k6 L: Etriangular 30,60,90 min
$ s' s+ ~8 W3 L. c2 Eu 60,30 min1 J5 V3 e/ r; I
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; z/ R( }: [# x# \in P_C, you need to send to die.
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. K; L' x) N( h5 X1 l- Y, E9 oThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.7 ?4 H$ y: ?: h3 X$ ^; r' h! t- o) q( N

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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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