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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,- S( @# B% j5 e- _* A. U7 w
  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 |4 Z2 k; a) i8 k  Loads are processed by each operator for the following time:
8 A6 Q& h3 m8 n# A. I' Y% S9 N6 o  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.- b' j' L6 D& 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.8 b& E# l# u# n; `
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.* S9 D) C8 K4 k- 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./ L) O$ i& u. S9 Z

1 J  }1 D" p: L. Y4 y问题:
, u; R$ [& h4 v0 r, D7 MAfter running the model for 10,000 days, what was the average number of loads in each process?6 f4 g% \1 @' |6 Q) ]1 I
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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) N) }8 I  `3 `& s* _
move into Q_wait /*Capacity is infinte*/
+ v" i  G) j+ @# e! i8 t( Jmove into Q_process /*Single capacity*/7 R0 ?: w; t5 X' ]& u- Q

. Y7 f+ D3 O2 O* Fuse R_A for n 60,10 min /*Resource A*/
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' v; C" }" a" T( wsend to P_B
7 ~2 f/ Y4 p: _% xend
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P_B and P_C is similar: R, K; p9 ~9 B9 ~# g; W
triangular 30,60,90 min! r2 Y* J& D. D6 K8 P! j
u 60,30 min  }3 x/ Y* i/ G- j) u2 t' l
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in P_C, you need to send to die.
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! T; X  b( U; N6 ?8 p0 bThen 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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