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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 R9 o% D4 E. V5 ?  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 z: K2 r: v* m9 p! x  Loads are processed by each operator for the following time:
- X  _, l- K2 Z* {  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins." g( l% w1 y( }- r( G8 ^
  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.
0 l7 j  m& Z/ e  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
& U1 Q5 V9 s9 ^1 U% VSend 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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3 w7 ?7 S5 M: f) {1 Y9 N) \# D问题:1 H7 E' W! z" `8 |8 o5 h0 P# r
After running the model for 10,000 days, what was the average number of loads in each process?
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: H. }0 {  B# X( d不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving" c( U# y! ~4 Z& w) C5 n& p
move into Q_wait /*Capacity is infinte*/7 U( S# ]  d) q( [0 z9 v
move into Q_process /*Single capacity*/5 o2 q: q7 z9 v  ?0 j( K6 k
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use R_A for n 60,10 min /*Resource A*/: D, @. l  s. V8 x1 m, U

( w* {% n% ^) {4 J- D+ qsend to P_B
. Z" J: C( [  P0 Iend
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P_B and P_C is similar
+ Z) I6 c; s% x3 l! _triangular 30,60,90 min
4 a) J8 M$ f$ H* _8 ?3 b, S5 c- Ju 60,30 min. N- M% {/ T. j5 o( {
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! @/ `/ A; a, K, h* ?in P_C, you need to send to die.7 l1 U$ L( c+ a" A/ h; x5 L+ l

' a2 @" v" V: Y$ ^0 _Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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5 i0 t8 l- E0 U; p( C. V; O; O
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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