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: 7867|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,8 @9 E8 [; M4 k! R4 u; l0 ?8 s
  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.
& x$ W# g- D- ~! j2 u& o8 G0 k+ _  Loads are processed by each operator for the following time:4 E0 b* C/ @  b0 w9 O7 r
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
4 J- k4 |' u, T% i7 w/ Z  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.
+ K" v" b% D- j5 |. M4 q  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.. i3 ]  O- b! @7 }6 L) L
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.
9 `. F, L$ p0 K7 m# k3 k* u  `( K) q$ n  K- V4 u
问题:) W7 M2 f$ a, g2 X, u/ H
After running the model for 10,000 days, what was the average number of loads in each process?
% S' Q, y' Z1 C3 L5 z( @& d8 @+ g) B; a4 l
不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving- W6 _2 ^% `) G& H1 z8 _' ]# B
move into Q_wait /*Capacity is infinte*/
3 q, j, ~& y) d) N+ k+ @move into Q_process /*Single capacity*/6 s% U' q$ n% ^9 W2 T, }
9 g' \( |; i) y9 S
use R_A for n 60,10 min /*Resource A*/
4 f) A8 p- x: I# _3 K& }8 V
* g- `! U% ~* i! H0 J2 L1 _7 Y) vsend to P_B6 E  l! E" p% u# @7 }
end
+ Z  Y& K$ e& v. c* B
) ~& g! [# B( `: ?6 cP_B and P_C is similar
; ?" d& `$ S+ l. f& ^triangular 30,60,90 min7 Y+ [" `( b5 ]6 q/ {
u 60,30 min
! A0 [; M) c) f5 ^& y) E  X1 H  |+ H$ E; S' |( R+ |- w# W
. j1 ~; w, z5 L' g- R
in P_C, you need to send to die.
# n, `3 d  b7 t; {, c
. G% c( Q! @! P8 [Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.1 t  }; e( V, k0 @- ?" n5 h6 l) c0 {

$ g! C  k( W0 ~% U  L
$ P6 P( g) b, fRemember 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, 2026-8-12 18:39 , Processed in 0.020099 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