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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& K7 E; g  P3 l, H# s; E7 S
  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.; I- k8 h9 @% I+ w, P; q
  Loads are processed by each operator for the following time:
% i- T! g! J, E: {. G  n  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
* R2 H% _0 \  `0 n! ?7 I5 L& E' y  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 L' i' Z& w( s; S" k/ B2 ]
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.' f% Y4 o. J( y
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.) t* K) |0 H, y" T1 p
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问题:
3 I4 O2 Z4 C: H( dAfter running the model for 10,000 days, what was the average number of loads in each process?
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不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
  c9 h% |3 Y  V0 C& gmove into Q_wait /*Capacity is infinte*/
& J% {1 ~( h& d: O- Mmove into Q_process /*Single capacity*/
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+ @: `0 y. C' J9 S  E: z5 cuse R_A for n 60,10 min /*Resource A*/# }( Q5 ^, Q0 X! r; M

2 P5 ~( ^. H* T4 T6 msend to P_B
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P_B and P_C is similar
& W; R  \& N+ J% S# ~7 I, Htriangular 30,60,90 min2 c' `% }9 t/ t0 P
u 60,30 min9 t, q0 F7 p! p- R( R; r
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- V2 v, }7 x  G2 C9 s4 Ain P_C, you need to send to die.
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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.
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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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