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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,
1 L5 @1 [( d  o1 v5 _3 U# V. M  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.9 f  f- E. A) A/ d3 z; ~% l+ m' X2 w
  Loads are processed by each operator for the following time:
1 {6 E* i/ h; j$ [: J6 T2 Y3 V  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
; j- B: O4 G; |/ c1 }  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.
5 Y% x. ?0 g" O  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
# [  L! B2 u7 P4 u7 A/ C9 }: dSend 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.: k: w  f3 a% N  q9 G

3 K" N8 U, p- k5 N7 ~( w问题:0 @1 |# m* T/ Q  ^% u/ n* @
After running the model for 10,000 days, what was the average number of loads in each process?
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/ N* g: h- h5 q: V  r( H& [不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving$ B) ]+ C9 _: ^
move into Q_wait /*Capacity is infinte*/
" b& ^1 C' ?! n9 {& kmove into Q_process /*Single capacity*/
6 ^3 h& d( z, K8 L5 n8 j, u5 E' r- h, j% i+ C+ ]$ w# f3 p% k6 C
use R_A for n 60,10 min /*Resource A*/
% _5 ?* y8 C) l# M6 y; p/ h' V4 W! q9 J8 c. n$ N5 E+ H9 \
send to P_B3 M* d. I! M  h. H4 n+ K& c2 j% k
end  e0 U1 O% u) m' Q  a4 q( l3 T9 a

/ Z/ L& g/ n6 k9 A# J$ F! {P_B and P_C is similar4 R, \( L. L# M
triangular 30,60,90 min
2 I2 T5 v8 c$ {: ^* }0 zu 60,30 min
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in P_C, you need to send to die.
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( {. H1 z5 u; p- [Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.6 J9 a0 D' Z. r
6 L. U; w+ G/ e) T& y! V2 T

& [6 z/ X  z) q" R: k/ J- A) z) uRemember 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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