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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,$ N) y- W. v/ _- w) ?$ q/ \5 r
  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.
. H. y# D: S0 S  g, _: N  Loads are processed by each operator for the following time:" j) X0 n: k3 {# w3 `# E' ]
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins., I4 j% i" |# {. l: U+ C, z& x' |
  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.
: R) N, y) X! r1 ^7 e  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.! l6 U! V+ l! B9 F9 i2 w. Y/ k
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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: s3 t' g8 }+ |8 @0 p( a3 T: U3 f问题:
( B0 b6 [/ S- nAfter 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' e9 }4 i/ ~$ }5 H7 s4 t! T
move into Q_wait /*Capacity is infinte*/" S) R* `0 ^, y1 b( S# }
move into Q_process /*Single capacity*/1 ?4 e; q- ?. ^6 U; I  d/ N8 I

( f& ~5 @5 v* [use R_A for n 60,10 min /*Resource A*/1 N5 A+ I1 O7 b8 y* F1 d

: p+ ]& l' s1 M  S5 Nsend to P_B
% W/ p+ c8 w2 M  s  I. U' h" aend
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- ^" |  W& [0 @' N9 H0 gP_B and P_C is similar" z/ w1 Q1 E3 ~) U
triangular 30,60,90 min
  E/ Q6 U0 `/ ru 60,30 min
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1 n6 @; j; T4 ^8 d- Ein 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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$ V0 t( d( \) Q. V% P! i/ ~# }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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