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: 7960|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,
1 o% W: T& R- k: W& ^& |5 T  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., Z) I5 ^% F0 D$ r5 u9 V: U( y
  Loads are processed by each operator for the following time:
( ~0 Y# A; F: L, h  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.$ l4 g6 x  N5 A* i) X) j
  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.
  N. q: ?. ], G) X$ g  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.: }. P5 O5 s/ W# h. c4 [  w
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.
* f! r, j8 ]: H3 O% J+ m5 t7 \6 W/ o/ v; V7 q1 W
问题:! ?: `' v% U2 t, Z( s- c
After running the model for 10,000 days, what was the average number of loads in each process?
; U' G: j* O& O) m! [6 z
: B" n" _0 N1 P& Y) `不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving3 V6 L3 }6 Y5 s/ u3 J2 F' S
move into Q_wait /*Capacity is infinte*/
& [) c1 Y6 S( @# J, c7 f' Xmove into Q_process /*Single capacity*/
6 m$ l$ [) q; o! d6 ]4 v1 n( n9 j! Q$ V" H( R
use R_A for n 60,10 min /*Resource A*/2 c2 I/ q) r+ o) |8 s
' a  V# ~0 S% I# U, i8 k
send to P_B& N, E  O& E- U1 p  `( o
end' _' Z( @5 h; `& S; s# ?2 h' F9 ^2 a. T

7 R! e- A7 ?( S; IP_B and P_C is similar0 _1 _: G* I& e; _$ m0 r3 M2 B
triangular 30,60,90 min
0 d. K" _( e; k0 y$ x/ W" cu 60,30 min4 u7 c6 Z: `4 G$ q# X# ]

1 S, ~  g7 ~6 v( `. n  d
  V" \, E3 Z  `0 n! Zin P_C, you need to send to die.2 G2 z$ l, s+ ^' f# g

3 @' b$ j" W8 q  A( n1 _6 jThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
+ l! f( X2 r, b  C
9 m+ t( f* Z3 ^7 e) G) b2 J
5 n1 p! I$ G% ]+ }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, 2026-8-23 14:32 , Processed in 0.017636 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