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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,
. w6 ^7 M+ F7 P+ O; x/ o$ J  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.
  W  ]) C+ s7 D* X  Loads are processed by each operator for the following time:
& s( T: z3 B# Y6 A- R( \" `  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
2 q( J/ d( V- K' X8 G# R  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.
' B  q' \( x- ^) W  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.% q0 r9 [; P% S, [- J: Z* F
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.; ?0 E0 G( Q4 e$ n8 ?
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问题:+ B) ~0 n6 N6 V9 W6 f
After running the model for 10,000 days, what was the average number of loads in each process?
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6 S! q1 n4 c& J- o) K不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving, W, A( R! `  D, [$ R( }
move into Q_wait /*Capacity is infinte*/
# V+ D' {1 n/ n( p! Kmove into Q_process /*Single capacity*/8 r: P0 C& T" {

9 M: f% L1 o/ u$ G- j3 _use R_A for n 60,10 min /*Resource A*/
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send to P_B
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P_B and P_C is similar
3 A; F0 I) R7 [# ptriangular 30,60,90 min$ S& {; }' ^# D8 i# G
u 60,30 min
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' Z! j' B% C0 X" i. ^# Z1 |in P_C, you need to send to die.
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6 T3 d# [; u! A4 H7 K2 ?) m+ mThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.; B$ C7 v9 g( v
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& \7 O, r% o% I3 n' @( LRemember 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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