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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,
2 J7 ~- Z. P! {7 f. ]4 j: J5 L' c( 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.# n7 M  a% o. ~8 R8 p; d3 R
  Loads are processed by each operator for the following time:
# R( n# u/ N7 ?  I; d9 p  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.6 F* d& P4 q  ~& N$ O4 ^
  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./ \4 N5 m' f; L* V. A, P7 `) S
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.. X' ^) x% L! s) P! T4 B
Send 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:4 o8 m2 j! ?7 w+ W
After running the model for 10,000 days, what was the average number of loads in each process?+ i- s1 N8 R$ Q; n" O
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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 arriving
% Q( V" L* r( h' W, Gmove into Q_wait /*Capacity is infinte*/$ T8 y3 W8 O" Q3 D! l
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/) U( \) A3 `4 o( {. i: e
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send to P_B( A0 K& }' O! L$ Z" P: \6 K+ w9 O
end
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P_B and P_C is similar
! X' z9 Z' Z; Z& O! n/ m4 N& dtriangular 30,60,90 min, ]  U1 ?: g& I* \
u 60,30 min
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* S1 n. A+ M5 O! m6 n% Vin P_C, you need to send to die.
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2 a) x& n: |4 ZThen 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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