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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,
! O& T2 w" O9 q- W# h  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.( _- X2 Y& B9 W! ?
  Loads are processed by each operator for the following time:
1 B- O9 e0 c% @1 {  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.6 `2 c' Q# `9 a3 v- T" [, f
  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.
6 j! W4 H% F% b9 a  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
" F3 U6 [3 r- hSend 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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* Y7 N  W/ D  `, q7 J3 r* ~+ Y' q" j问题:
9 i3 z1 i, q7 ?" F3 l. q3 qAfter running the model for 10,000 days, what was the average number of loads in each process?9 u4 v8 Q3 F0 q2 R( S
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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( p8 Z/ j5 J) m
move into Q_wait /*Capacity is infinte*/
. x5 J' x+ e, i& O' qmove into Q_process /*Single capacity*/  Q8 ^7 S, w9 l) d3 Y4 S) Q) F6 W

. M1 S( o- J- p3 V& d. H, t  Uuse R_A for n 60,10 min /*Resource A*/) h9 Q3 a/ F9 A2 A0 G
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send to P_B1 `' [- }5 j: F6 s
end" H, e0 v( k/ l5 `
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P_B and P_C is similar
7 T/ ^2 V! I2 l2 gtriangular 30,60,90 min( l: ]% A6 B: k( N6 \
u 60,30 min# _' v" |. l  N) P# ^
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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.6 I0 O$ S: ^" d5 c5 s* h$ p8 p
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5 R1 [' t+ S, L& 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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