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: 7192|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,9 a7 k( ], _% W
  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.
8 C) C  o0 \) z+ P& J  Loads are processed by each operator for the following time:) ^3 ^+ K1 _  A, P
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
: L& u) Q1 M. O. F1 w  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.
3 Y! n' x; h9 ]" }$ V  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
+ |$ L% _: Z3 PSend 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.
( |8 f2 d( C5 I# s( ]5 @. D% R% T' f) a
问题:- k* t3 |0 J9 Q3 A0 i
After running the model for 10,000 days, what was the average number of loads in each process?
& `9 h+ a: C+ Z0 ]" b( E3 v1 s/ `) y
不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
0 F1 \7 m: K: ?- L! |move into Q_wait /*Capacity is infinte*/6 O+ O  J8 P6 K9 |
move into Q_process /*Single capacity*/& }9 K  @- t' ?% Q& Y% r
7 K7 p$ \& S2 o: S" `
use R_A for n 60,10 min /*Resource A*/
6 k# s# ~$ @+ m4 F6 J. W# I& }9 e# Q: A5 H8 t& F- K5 n5 {4 S
send to P_B
" l2 i5 V" Q. qend
% A0 J  [9 R. V( K, f$ n
, F/ V5 ]. S4 {+ ?P_B and P_C is similar
$ v5 Q0 z7 r* ~' }! Q* Ttriangular 30,60,90 min
2 y& Y1 _& Y$ I7 F$ Yu 60,30 min7 L/ _1 F$ c* k1 l1 L! T7 [5 T" @) ^

& S# e3 l. D1 ~2 X1 P' }6 n1 F  J" t3 R- \9 I
in P_C, you need to send to die.% Y7 I. h& ^7 m$ S6 `7 o

( R2 s! }" U4 l$ FThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.4 l. D# `. J$ `* }+ P" A0 h
) c* I% y. w9 a# \

5 \, C5 u8 j) u) Q8 J0 k3 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, 2026-6-18 09:09 , Processed in 0.015286 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