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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,' H" c3 |2 }4 G
  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 Y. U; Q( Z7 K5 p  Loads are processed by each operator for the following time:2 F1 ]  n* `; [9 {1 C; e
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
, f) ]# H$ w0 ~* a) q( D$ q/ c  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.
! ^3 `" I2 H5 i9 z  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.; j& v1 S+ w! m% M4 a2 e- Z
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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. ~8 s0 `! K+ `  b0 |6 ^% ]; a问题:9 f9 C4 t7 b3 \# P6 l, d
After running the model for 10,000 days, what was the average number of loads in each process?
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0 G+ J) ~( \% \+ S% S5 y& e不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving0 f$ ^- _- a7 k7 f
move into Q_wait /*Capacity is infinte*/" W; w) \1 v* A0 X/ v
move into Q_process /*Single capacity*/) T& h+ ]9 d- w" N

* z5 g8 c: x, O$ u- J) r% P0 quse R_A for n 60,10 min /*Resource A*/
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send to P_B
8 Z1 [+ j; Y' x! c% a7 ?. kend
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P_B and P_C is similar
/ M8 h! f9 o# ~. ?1 B) ]3 m! \& etriangular 30,60,90 min
8 |# m" M& H& w3 ]. G, nu 60,30 min
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  J  G! B5 ]' Q/ k* K  C* |8 _in P_C, you need to send to die.6 g& e$ }+ l6 y+ n
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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.& o- g6 @; Y. i
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1 _1 A$ M& V7 kRemember 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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