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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,
/ Q) k7 S+ R9 h  D, p5 R9 @& U4 X  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.
$ @! K$ H7 O! K. N/ V  Loads are processed by each operator for the following time:
. u7 v4 @) I" Q* X4 x3 D: |  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.7 O4 [& f2 z5 Q1 F! w
  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.8 S4 A7 x) b3 N
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
. l6 \# ]% U& G5 T1 {/ JSend 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." \3 f" C  b! f) Y# e: ?- X
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问题:
  G" p. {# S/ C, [5 g: sAfter running the model for 10,000 days, what was the average number of loads in each process?, |# x5 c( s2 m9 ~

- U+ V  z3 U8 D, d% a5 D1 \不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
* J" q1 M* G. j# \! w. ^- W% Rmove into Q_wait /*Capacity is infinte*/
0 v* t7 c! `  d7 R2 Smove into Q_process /*Single capacity*/
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9 I0 `7 ~; j3 h; ^2 G2 v' O* ]9 z$ }' w/ fuse R_A for n 60,10 min /*Resource A*/
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- |0 e9 }! I, p+ G5 k5 D; Isend to P_B
% p9 S9 d, X0 Dend
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P_B and P_C is similar
: h/ @6 y: g' x$ }triangular 30,60,90 min! F* M% ]" z3 h) H: l# }, ]
u 60,30 min
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- Z% D6 K& C; x( A5 F. J6 Cin P_C, you need to send to die." J) k6 ?$ T$ n) |- F! v
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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.1 Z' A& z. q0 |8 d( c4 D
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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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