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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,/ P* |8 D3 H0 J* d" ?, P6 q5 u
  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.
& D7 }- ^# I' N  Loads are processed by each operator for the following time:3 F1 W. i9 p  p, E( x6 J8 s
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.# G  \! z+ K9 |- r& {& ~( i+ j
  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.! m' I# R( l1 d( w
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
8 H8 ^. R" _! m# J* sSend 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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问题:: h% O6 @: |% d
After running the model for 10,000 days, what was the average number of loads in each process?
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+ c: t' y4 m% {) A' |不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
# q. j$ c. M2 X& f7 l, Imove into Q_wait /*Capacity is infinte*/
2 V; A) F# u4 c3 G7 }/ Mmove into Q_process /*Single capacity*/2 S* D3 T" }* o( E+ w
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use R_A for n 60,10 min /*Resource A*/
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" h4 O+ ?" A. E7 H; Gsend to P_B
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P_B and P_C is similar
4 L) L' l2 ^& a5 \' t5 Ctriangular 30,60,90 min- W% ?! Y0 Y4 S& x6 U. H
u 60,30 min) y! f- B! ], ^2 G; T& M/ i, |

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in P_C, you need to send to die.8 `1 p, s; x2 @8 X) E1 j  a4 ~

, s( ]. ]2 O, 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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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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