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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,4 D7 ^$ ]4 [, q9 ^9 [' |
  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.7 J4 E6 a: l! L  t
  Loads are processed by each operator for the following time:
- E  O8 S. p8 H  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.3 n2 }  m6 L2 K5 e6 K
  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- H$ [8 V- n% t1 N
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
6 w0 U# ^2 }; q$ ^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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2 Y1 r% h, Y, j问题:+ z! @$ M6 B% ?9 `
After running the model for 10,000 days, what was the average number of loads in each process?/ o6 e7 @5 k+ a# [

1 j  v( z' ^: ?. f不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving/ N: ?. F! o$ x2 t  c. c* P
move into Q_wait /*Capacity is infinte*/
, V. Q( ^5 r3 A/ G+ J& i  J$ J& m9 nmove into Q_process /*Single capacity*/
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) l7 K) J% D+ M( f3 L: ]) T$ r! Tuse R_A for n 60,10 min /*Resource A*/
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send to P_B2 i8 r  w2 `0 r
end( f9 F4 G, f/ q6 s

5 T" B( U* c0 |- ^! a- _6 aP_B and P_C is similar5 w" y) A8 o5 `7 }- U, u5 l6 n
triangular 30,60,90 min
8 |1 X% |. {/ k" w! X' Fu 60,30 min
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in 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.# B5 y0 f' Z! j7 ]
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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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