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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,, v4 d) \6 _& @/ c/ k
  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.
3 w% X% F( v" N7 a6 h' ~' S& H5 l  Loads are processed by each operator for the following time:3 ~/ _' X# L2 y) i+ [1 g
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
: K6 J7 C6 P+ T$ \* U3 s" w0 w3 _2 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." y/ b" c* R4 {( q
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
, s# ?+ ^# R6 J- w' q* `9 k  d( DSend 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:
4 w/ v* u6 B' J6 R0 Y8 y, uAfter running the model for 10,000 days, what was the average number of loads in each process?
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2 B4 F6 h  Z; C不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving9 Z( D5 U% R  X  X4 U
move into Q_wait /*Capacity is infinte*/- w6 G9 Q( l" n# ]7 [
move into Q_process /*Single capacity*/0 i9 K! t! f3 N* {8 I* b
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use R_A for n 60,10 min /*Resource A*/
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( E3 W! H9 \3 J& g- v% hsend to P_B
6 e3 Z( D3 L1 o1 ^- `end" B2 `. G: o, [9 c# ^: m
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P_B and P_C is similar1 a! Z. C: d. {/ x, \
triangular 30,60,90 min
% b3 S7 @" }& @% M3 b. Gu 60,30 min7 n1 B( T% Y, D& T5 l3 X
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( _" }  s/ \3 q  E. H& S# d" w( G5 Gin 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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: s6 j# F! L! W' `4 T8 m% ARemember 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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