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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,  k/ L, f3 k6 ]% @$ c2 e
  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.# s* a: m8 O( p  u  P- D$ g5 Q
  Loads are processed by each operator for the following time:+ ]' h8 L/ K4 o
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins./ @' Y( C& ~# w
  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./ J) q1 e: U* }2 h: }+ u
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.) Q2 ]' W* E4 h7 o$ k7 }' o
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.- R  D4 G* i6 p2 J; g5 a* G* l

9 t; K5 D# [, F& _; k问题:
4 ~) w/ R2 r9 Y' _2 ?$ u, ]After running the model for 10,000 days, what was the average number of loads in each process?$ V: i. r9 z7 F8 W) ~

) [# K2 o, Q- s2 @+ P+ w2 f不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving$ d! {) R( O. j) F: ?
move into Q_wait /*Capacity is infinte*/! w5 `8 O0 R. U) e6 J. A7 C
move into Q_process /*Single capacity*/) H. X" P# b5 [5 {- L8 N
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use R_A for n 60,10 min /*Resource A*/
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& M- a8 M5 D# E+ X* hsend to P_B* ?6 q+ d/ l7 i# `4 J( X; |
end
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P_B and P_C is similar1 S4 G9 s! s8 e( U# P$ F
triangular 30,60,90 min. M+ N9 x  x$ }9 h
u 60,30 min
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! l! _6 V% ^% U4 \, [9 {in P_C, you need to send to die.
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* q* O) C1 Y! L1 rThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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" u4 x3 M5 f% g+ a# u( c( o' iRemember 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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