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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,0 ~. m8 t& ~5 `0 O+ K
  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.
6 U3 \. V, }: a! P5 |  Loads are processed by each operator for the following time:
6 w! N1 I: [, l+ M. W5 t; L4 I6 T  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
, j' q! R  k6 [% E/ ?6 L& F, n  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.8 `1 t6 {9 i8 x, l5 S) H2 n
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
6 u/ z" j  |# lSend 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.) I( n0 _7 p( r2 A  i

( J# r- k* N& h! b7 V: |问题:
+ o, ]# k# v- xAfter running the model for 10,000 days, what was the average number of loads in each process?
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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
; E( W0 }' X$ E; n) a3 K6 Emove into Q_wait /*Capacity is infinte*/" z2 ^7 {' P, ^. z
move into Q_process /*Single capacity*/
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0 S2 p+ k3 V* p: T* Fuse R_A for n 60,10 min /*Resource A*/
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  {. j, E' k5 O" ^$ Vsend to P_B- O3 ~( o% r! ^: S  R, h* ]; `7 d
end! |( D6 h2 U6 r1 {2 K3 `- T# B
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P_B and P_C is similar
6 Y, e5 l/ Y5 m& ?: M+ _- L2 Q* Rtriangular 30,60,90 min, d" m1 d2 M! V8 a9 P, s' N: A
u 60,30 min
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in P_C, you need to send to die.: G9 a) Q# A2 c: I% d6 Q- L

5 Y  D. o! F* V, }! c' Q* mThen 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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