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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,
( t9 G  B6 E7 z9 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.
$ _5 m# q& k. }* O, `% l$ m  Loads are processed by each operator for the following time:, ]) D* O0 O" Y& U3 w
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
; j: v; q: c  `0 t. v, 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.1 H6 B  O5 W9 s3 d  l8 m
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.' z. Q$ D6 w, W9 T! E7 R$ P+ N
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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% z9 |) j. r8 Y8 Y9 J" ^$ H! }+ ?问题:
$ m5 W2 O4 C9 \9 W3 cAfter running the model for 10,000 days, what was the average number of loads in each process?
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6 E/ y# c7 Y, d: t: @$ p不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
, B8 h) _1 K; R) r% c) Mmove into Q_wait /*Capacity is infinte*/* _2 ?1 \7 `+ @% y( L
move into Q_process /*Single capacity*/' U8 D/ Q4 V5 A% I  o

. a: A! G+ e; v( r4 {use R_A for n 60,10 min /*Resource A*/
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send to P_B, A  ~1 _! m% I. ?  n
end4 G4 P6 D  x8 ~' U% Z$ ~( |! t8 v

$ j0 Q# r; B( Q0 ~" [P_B and P_C is similar& f' X- z: }8 K  f
triangular 30,60,90 min3 c6 H( k  D+ t$ o
u 60,30 min9 L1 j* [; ?$ L3 J( W
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in P_C, you need to send to die.
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1 w6 F6 F; m# I" R  H. ~$ j  _8 VThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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/ p3 \" v" _" E3 JRemember 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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