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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,+ n6 D8 ?* U" A" ^# ?5 j
  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.
2 f0 g4 j' ~9 q4 V9 `( b  Loads are processed by each operator for the following time:
8 c* Q% c* O; G  V8 G0 o" |9 \7 p  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
' [* [! D! l) N% X* \' Q3 W$ 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.
! v: t! c' C' @0 R- w1 N  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.: E, \# ^3 d6 ^9 o9 {
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.. p0 P% a) [0 B! m

  x3 v9 A  m" ]问题:: B- v5 z; j' p3 R# ^8 ?+ O* Q, f
After running the model for 10,000 days, what was the average number of loads in each process?+ ~9 |: C" v# d: S: r. d9 @
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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
8 l& O7 a) V# F; d" r; |5 D. dmove into Q_wait /*Capacity is infinte*/3 c: c2 `7 k- P% C9 R9 k- K' Q, n
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
, M' k0 d8 i% K) Aend
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3 k( ?" j3 s- B& W7 QP_B and P_C is similar2 j, ]1 G- e. I+ N5 i! P, v
triangular 30,60,90 min6 |9 v) F2 B/ U1 K$ E
u 60,30 min2 v, ?7 }6 F! Z) I

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9 {. ]4 O5 R) [" Cin P_C, you need to send to die.
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Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.: a7 s2 V7 M3 m. ]+ \
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+ \& P5 o* ]) L, c) c! R2 ~/ RRemember 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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