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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,8 i) a& w+ p: }) ]: ~; 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.  [8 d1 i' }2 d7 W6 l, U, j
  Loads are processed by each operator for the following time:
0 q8 l4 ~/ ~# B' e* t2 a  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.7 L: Q/ b2 u. O. m' o7 q( c  p  D
  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 T/ @  ]: M9 r5 N% a" k; R/ `- k  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.0 c- c. x$ g0 u: X
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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$ B4 ]4 K. v; |1 P" p( ~; n6 Q0 x问题:
& y8 W! A& f! @* l) p; Q$ cAfter running the model for 10,000 days, what was the average number of loads in each process?( `8 y3 ?4 g/ V

2 g6 d/ l- b: p7 S不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving3 H9 ^# ]! l$ W+ B1 G. N5 ?
move into Q_wait /*Capacity is infinte*/: y2 q( n; ^, ?; n" B
move into Q_process /*Single capacity*/
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/ C" k1 E' [8 E: Euse R_A for n 60,10 min /*Resource A*/
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$ W) T% j: V/ H) h( Psend to P_B/ T+ a( Y1 c3 G% Z9 ^
end
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P_B and P_C is similar/ T; @" H. B! K
triangular 30,60,90 min" v- M5 |8 B: X. |, q; e) K5 s
u 60,30 min
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: d2 L0 i8 U4 l$ c; E0 xin P_C, you need to send to die.
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6 ?, N0 _# \! pThen 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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