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: 7326|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,
' \0 Y4 i1 k! J+ i3 f  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.+ Q. L. C/ ?& @* q; E6 r$ y3 T
  Loads are processed by each operator for the following time:
% |8 _- u% {5 h' H6 B( V' C) d  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
5 j1 B# _0 w9 f2 e' F$ s8 K  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." C) Q; k7 w. b0 `( j' l
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
- n; j" `# _+ [3 {+ _, |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.+ B$ R6 B. [( f4 N8 G$ ^: p

! r3 w6 R# r+ F" ^4 y" p问题:
- [/ ?- h2 c+ U* T  MAfter running the model for 10,000 days, what was the average number of loads in each process?
+ X5 R( U  }, X$ H# `. K2 r2 ]+ Q! h* u
不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving2 q6 Y* C  _0 u7 A: u
move into Q_wait /*Capacity is infinte*/
1 P7 ^8 h$ v) X; c8 \- X1 Nmove into Q_process /*Single capacity*/
2 H1 A6 U0 `8 l8 [: a# I4 U( I& h6 A
use R_A for n 60,10 min /*Resource A*/+ I( _1 s9 V# l$ p
; s$ @- H9 l# R1 b- e+ j$ a9 G; X1 x
send to P_B) {# m! e% }0 p) m8 d- ]
end
6 E+ T/ e# ?9 l% z- g- R* n2 w3 n! Z9 ]" B! [. T5 `
P_B and P_C is similar2 F7 i6 C- ]1 t; w1 f0 S
triangular 30,60,90 min- H( X4 a0 w5 F1 c
u 60,30 min  I4 L- j" X% H# a" P% L
+ A: D) d0 t& Q( Y% b/ _& i  ?
7 M) B! e1 F& a1 G7 H
in P_C, you need to send to die.
/ ~8 r9 M$ H7 a3 M2 Y) |/ ~% M- V/ r
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
: l% C' ?& k9 O) c  R6 |: ?0 B! _. {0 V
: o5 A9 P7 h7 R1 K: H3 Z% w8 L
4 E3 ~( n9 ^& JRemember 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, 2026-6-29 17:07 , Processed in 0.014847 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