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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,6 s7 b# d- h* c6 I3 o
  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.+ U! @; ?2 _5 C
  Loads are processed by each operator for the following time:
1 h7 c! t' N2 {# z2 }  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
* x% B1 Z0 X7 w4 L) G  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.  s+ T7 i! s/ S' {5 n! H& I2 c
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
3 S) d  Q5 q6 A" D$ `& r7 y+ w* fSend 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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( ^7 R) O( M- b1 T+ l问题:! K2 S1 N. D3 s8 w7 j# w
After running the model for 10,000 days, what was the average number of loads in each process?+ V+ E. M/ @# J. K
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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 arriving6 Y/ K5 [5 m, O! O: Y3 U
move into Q_wait /*Capacity is infinte*/0 ]% y% H! E* k' z
move into Q_process /*Single capacity*/
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4 L* ^  B. |& W+ i. t7 i. u# \# [use R_A for n 60,10 min /*Resource A*/3 f6 ^6 e( c; b  Z
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send to P_B
' n0 l2 V; s; L, s% q# }: yend- E- N) Y8 ]" v- q

- @9 X0 S' J. y$ @P_B and P_C is similar
- W( j6 T; `/ B7 t4 r" V4 _2 ctriangular 30,60,90 min9 ^8 s9 R4 f5 z
u 60,30 min: J; z# }5 M/ l* [$ P" O

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  `$ E. ^- h/ Z& H: O6 C1 r' ain P_C, you need to send to die.' E7 B* r' F4 T8 i+ H

% `* k- I) J; G; f! r: ^  [Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.: b, I3 M9 ]9 }

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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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