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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 w8 I; }0 F2 i1 _6 Z  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.
( K- \4 e  W, p  Y+ N9 u  Loads are processed by each operator for the following time:' G) F4 |4 G/ g  j
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.' d5 _& j  _" q, a9 z, k, J/ a, y
  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.
5 m  ^$ E/ y  A  l  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.! M9 A& ^% O5 B$ L; v: R0 a& z5 p
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.) D- A, X* M$ w  ]0 u; g

' B( r- A" R- ]* Q5 R' O4 ?问题:
' N; c: P2 x$ [% CAfter running the model for 10,000 days, what was the average number of loads in each process?, v+ k  @% N  [
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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& w5 T3 V. ]  `7 N0 C3 G. {2 l
move into Q_wait /*Capacity is infinte*// m! V; W5 s3 j. D& R- Y$ U. o
move into Q_process /*Single capacity*/
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, A* u, M7 I* I( T1 v( O# A$ k4 B& tuse R_A for n 60,10 min /*Resource A*/& P1 ?7 a4 Y9 [# j6 O
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send to P_B/ j1 C# ]( W& s8 b5 }( k: v
end7 p( I6 D1 _( s5 n
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P_B and P_C is similar
; q) }7 s/ h" I! b3 h/ K& ktriangular 30,60,90 min, z! w$ P$ W! j8 p* j! G; W
u 60,30 min
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+ x1 `3 [1 m! _/ Z- oin 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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