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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 w$ v( j2 s4 k+ o9 u" C  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./ p" s; c( M# {8 j
  Loads are processed by each operator for the following time:; N( i$ Z9 Z; E; z7 n' A
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
: G$ S( T: f+ X  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.
( y0 q! j6 X- Q! r  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.; q( n' s2 M8 x! }  z
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., `8 V/ t5 r& w7 b( @
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问题:* o2 J' D0 c/ r) ?; _# [
After 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+ Q3 t- w8 a) p7 j, K
move into Q_wait /*Capacity is infinte*/
8 h3 Q: p, l* G; H, E0 V/ Smove into Q_process /*Single capacity*/6 ]; w. }2 M, @. c& _

6 [6 E' F8 T) f% Q# s: u5 j" Fuse R_A for n 60,10 min /*Resource A*/* s  m, j$ H$ j: c( z
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send to P_B" M6 h# e* J, p9 C6 ^+ W
end
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$ v+ G4 m6 j+ n; ]: h$ `! W! LP_B and P_C is similar
; N9 M& _4 g" h: Q7 M/ ], r* h* gtriangular 30,60,90 min
2 {. D* c0 C6 R0 P2 @; e- B5 L! zu 60,30 min' _' S8 |# g  n2 `
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/ J4 F3 a8 D- _+ @in P_C, you need to send to die.
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* M' ]9 h9 {" _# S6 JThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.1 }0 U! f9 U0 C8 J

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7 d6 j6 V% a9 I6 K2 k! J) A) C/ sRemember 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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