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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,
9 w6 S. v0 ~. q7 z8 Y  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.
" J/ o4 o& p( n+ x  Loads are processed by each operator for the following time:
+ N, |5 P( f% ~9 ]  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.3 Z9 k7 G" K5 b/ A  V, l
  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.
; o0 l6 Y% Q3 T" q+ l  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
' N4 ~. r: P' N/ n& wSend 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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/ b, U. o2 R' L问题:4 i! P) Z) }- Q3 ^/ ~/ d
After running the model for 10,000 days, what was the average number of loads in each process?4 _: y/ T# v; I, }4 _* x& `

" X6 z9 f7 W8 o1 e+ h1 }* ?; M( r不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
7 C, Z' @, w5 v" ^move into Q_wait /*Capacity is infinte*/
' ]; y  e" h4 {1 a7 O+ gmove into Q_process /*Single capacity*/
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3 [" W3 Y* k( I, Z& j# fuse R_A for n 60,10 min /*Resource A*/6 T( _- v' q3 R
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send to P_B: A% c0 z" E# v1 z
end7 Y( K6 M' ]) Q, m

) L) }. ^' P0 C* X9 sP_B and P_C is similar1 D' S' p8 H* G' n- @! v
triangular 30,60,90 min
3 ^3 b# V$ m, @7 x7 vu 60,30 min
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in P_C, you need to send to die.1 ~# h! x! w/ G
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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.: j$ D# h1 u, r

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Remember 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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