设为首页收藏本站

最大的系统仿真与系统优化公益交流社区

 找回密码
 注册

QQ登录

只需一步,快速开始

查看: 6534|回复: 2

[求助] 本人初学auto mod,有一道题目希望大家赐教

[复制链接]
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,
" ~/ @+ i' c+ s0 U7 a- r- ~( x8 [  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.0 N7 ~1 ^& H. T8 T9 u
  Loads are processed by each operator for the following time:
; w3 ?5 V6 `$ c) ]! w) 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 X- W4 p+ [" i, r" a  V# k% p
  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.
* d5 q# ~! p" h( t$ i  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
  `0 U# d. i. u; e) D; ^, k+ J8 F5 nSend 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." i- C2 K1 h2 G$ `" r
- z& x, O3 X# U
问题:: D  b/ Z. M1 }8 c" n
After running the model for 10,000 days, what was the average number of loads in each process?* m: v0 {" F% \- v2 H0 y
* V! B9 l! B. ~# \
不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
- a, _/ c7 Q3 |* D+ g& ]move into Q_wait /*Capacity is infinte*/# W6 X& U: U6 W1 ^- \. p
move into Q_process /*Single capacity*/
5 b1 D$ i4 U$ N2 ~( a, O6 S6 R" K( j9 N8 {  c
use R_A for n 60,10 min /*Resource A*/
/ i4 R, I: p0 c2 g
/ e) _7 g* @+ j6 v, u" G  ?send to P_B2 `2 z! Q8 d6 {- i: _. d5 \
end8 B$ h( D# h  |3 @% F
+ H  x2 A3 m# ~1 l2 J0 D7 z
P_B and P_C is similar
4 J0 B/ D. V/ t7 ]) h8 d. Ftriangular 30,60,90 min
" T! Z3 q$ I9 G" e. n5 k8 iu 60,30 min
7 e% d6 v& f1 S* }1 i# w% u
! y+ A4 V5 k$ A7 m6 y" Q% V+ m/ v# S2 m+ c3 x+ @9 \; w; x3 z
in P_C, you need to send to die.
% c4 v2 e/ l$ Y3 t% f" T
( W; p! M* o% ZThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.3 d' ], _( v- F

" }8 @/ ^/ v# V# H% v$ V
# W% C( o! p3 U# j7 S1 u+ ~# `Remember to turn off the animation before you run your model.

评分

参与人数 1仿真币 +12 收起 理由
shakie + 12

查看全部评分

 楼主| 发表于 2009-10-27 23:53:02 | 显示全部楼层
thanks...
您需要登录后才可以回帖 登录 | 注册

本版积分规则

QQ|Archiver|手机版|SimulWay 道于仿真   

GMT+8, 2026-4-6 13:35 , Processed in 0.015384 second(s), 16 queries .

Powered by Discuz! X3.4 Licensed

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表