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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,  i; \+ G+ ^* j2 ^. Y& i1 K. P
  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.
# p; T. x* ^3 M& `6 o  Loads are processed by each operator for the following time:
/ g" A" c2 r7 [1 o% z- r1 ~  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.3 g% g9 F8 S5 c9 a
  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.
2 z6 n& h. X* m' ]- i  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
+ o* `0 q: s+ h/ N$ G3 wSend 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." r2 u, D, R$ E1 w6 [. |. t

5 O3 `& H" y5 S+ W问题:
( w4 z! V* w( D) r0 uAfter running the model for 10,000 days, what was the average number of loads in each process?4 o! [& E: |# X6 I+ R+ z2 I

+ \5 C" W* N$ g3 Y5 o6 @' C不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
* T+ L2 W+ U/ t9 y; n! Umove into Q_wait /*Capacity is infinte*/
" \! @! G, Y4 k) Ymove into Q_process /*Single capacity*/
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: d/ y( h$ j& R9 ouse R_A for n 60,10 min /*Resource A*/
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send to P_B
# K. V# B: Y3 J1 @end
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P_B and P_C is similar
4 B" {5 J6 T( N% i2 L8 Atriangular 30,60,90 min+ H$ P: m$ a& P4 Y8 z
u 60,30 min
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  z  @' U7 o/ i% {+ ~
' C4 F7 N4 C/ ]1 o) B3 L8 Qin 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.
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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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