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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,
3 n7 x( i1 F( \1 c0 p. B  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.7 d, ?$ O$ j. m& x
  Loads are processed by each operator for the following time:+ m* k5 m, @! J
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
+ [, X( o: r* x$ T2 z0 ?  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.
0 y2 _, l9 M* B1 F( _  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
3 H2 h5 v& w- {$ S0 N! X9 bSend 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:
$ O7 C3 s6 ]: A9 B/ _) q2 E$ JAfter running the model for 10,000 days, what was the average number of loads in each process?. B6 L$ @, Y7 a9 l
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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; G1 n* @; U( w% v
move into Q_wait /*Capacity is infinte*/& |/ f* k* V  A8 C( q
move into Q_process /*Single capacity*/: g4 u$ S( v: p; b
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use R_A for n 60,10 min /*Resource A*/
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send to P_B7 o9 K) G3 @. @! r
end
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P_B and P_C is similar4 Q) |1 B) W( J$ Z! ~
triangular 30,60,90 min
1 i. c1 D( W7 O/ |/ ~2 xu 60,30 min* Q% [. ]+ o: e* U' S1 f! w" S' Q
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) B$ Q$ O* e# k; C, ein P_C, you need to send to die.! ~% J$ s. ~" o8 c: F( g

6 W; }9 l+ d( l. _9 @0 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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- ^8 P: i9 ?6 N) ^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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