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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,
" f- T' Y0 s" A) z% B% N  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$ a$ I2 w1 \$ l/ ?2 x1 Y  Loads are processed by each operator for the following time:
+ Y. s% A: n/ ?4 ~  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
  `' O% \& u5 H9 s1 o( M  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.( a6 @" Y2 m# T/ V7 |/ X3 L: N
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.- T# |; _& g  }9 H
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.1 `' [" D3 H; b5 E+ R  L  N

) F: y, u5 |/ v+ I4 W" x: b0 T7 N问题:
6 l; G+ h( Z4 N2 [- p+ K& i% `After running the model for 10,000 days, what was the average number of loads in each process?  t( x* H* ^8 G1 z

7 `# d3 b; B% g7 _% C3 _& l" B不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
  x" g8 B) y" m1 B  {1 Mmove into Q_wait /*Capacity is infinte*/
, k' A" s" o! J- }move into Q_process /*Single capacity*/+ P8 T: ~  r# H6 T. f

. ?7 P! Y- F. a: ]; |5 ?+ g2 e# G$ Nuse R_A for n 60,10 min /*Resource A*/" f9 R: c) z, S- F2 `- z6 C

& W/ y* f( B6 Y! y" E0 a, A9 Ssend to P_B
' R4 b' _% z4 K- L1 Q! \9 Aend
' Z  P4 B1 v8 _: I2 T* z% T% ?( H6 Y- D. g! @- o' C0 I( m( S
P_B and P_C is similar. H: h4 X3 I' O3 e% e! }
triangular 30,60,90 min9 ]- h% ~& s' ]- D: b: O1 x
u 60,30 min/ y4 F! y: m# A
, D- ]$ K; @) \6 [; |4 t

" y4 x: ?- f; u/ p9 e9 k' kin P_C, you need to send to die.
  z# j  K! s1 F: b9 [- o0 S
) B6 }+ N2 K, c4 I: yThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.$ _6 X  O4 s* P3 E! u9 N' G

6 m$ G# D. D% s0 N
$ ?% R0 I. `' d6 M. D' a8 g! ORemember 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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