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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,
9 j7 X. {$ \; Y2 ~2 g/ F  D# ^  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.4 `" E' N  b( O- L: ]
  Loads are processed by each operator for the following time:& n! _) |; C7 ~8 d* L. O
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.) U) t3 x3 [) y8 S
  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.% a( L  L/ Q! D0 g# A1 }& |
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
( e  x0 F, _. ~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.
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问题:: q: z( M) P" ^( s
After running the model for 10,000 days, what was the average number of loads in each process?" e) _# O& z) g6 c* U3 f6 d
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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! V8 p! W: n6 v" \9 S
move into Q_wait /*Capacity is infinte*/
- n7 ?; X2 u/ E8 v# g; i& Y- C7 U9 mmove into Q_process /*Single capacity*/) y! R" T- b8 M/ T* i+ V
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
8 H7 u# U$ d! Lend7 z# n) Q/ Y. Z, e8 M. d

6 Q& I- I0 b8 ~: \P_B and P_C is similar
8 P  `4 {- m2 x, B. {3 Ktriangular 30,60,90 min* e8 e: T. `1 L1 b
u 60,30 min
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4 L) P# _1 X; u  {, U; W( yin P_C, you need to send to die.* N9 H) a, ]# K% l

4 k/ a2 V. a- e$ k# rThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days./ g4 o3 D: j# }9 W) d- }6 s; V8 v

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2 i7 P5 h$ @; l+ }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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