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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,
/ B1 Z1 |% O$ E  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; }* }; P) M7 x& C  ^  Loads are processed by each operator for the following time:
, d3 p( `2 C( _' @1 K  `0 b  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins., p9 s6 M0 G2 a( _% k* Z2 B' C5 J
  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.  }) }5 h9 ?+ H, z% c+ h# g" J
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
9 A( \0 b1 }4 u  v8 [( D0 n) 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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3 a- t3 }8 z" i& F# q7 T问题:
9 q, \9 _. U- z. \After running the model for 10,000 days, what was the average number of loads in each process?, d# ~9 f, G  [' Z3 h& o( _7 \4 R
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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
* E1 n# M& y+ D2 m+ z) z$ I  Lmove into Q_wait /*Capacity is infinte*/2 s  E' }1 w  x+ B  r
move into Q_process /*Single capacity*/1 B+ D. E2 A  I% [$ j: [. }
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use R_A for n 60,10 min /*Resource A*/6 _3 H2 l" ]9 W# `
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send to P_B/ H& T% Z3 X/ i
end6 ^* v5 N5 n% N1 e5 e9 v0 {
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P_B and P_C is similar! {, F# v) k: P
triangular 30,60,90 min
) E3 P( n8 P8 u6 P2 @0 F' T( vu 60,30 min- `* W; Q. {4 c- X1 [" L
9 I& I3 V2 X: K1 I7 t0 z( ]

& i! B! j; I$ S8 h. p8 qin P_C, you need to send to die.
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% X: `) J' ^& @1 [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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3 j$ x5 @# j0 i" j( FRemember 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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