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: 5644|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," m8 I8 y" d1 V6 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.
* }) b) n# Z+ C( _# g  Loads are processed by each operator for the following time:
5 F3 }+ F+ Y2 z  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
9 S% Q! Z) @( Y  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.6 `5 e2 X% Q- Y2 P0 ^5 r  s2 h4 m
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.* G. k) W5 y0 c2 [/ A' h9 f
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.
4 {; o5 a; c4 m% D
1 [+ u# C: h2 r/ V- f问题:9 v0 S* I* [! {1 i. f2 f
After running the model for 10,000 days, what was the average number of loads in each process?% f1 v/ |3 \) E, I7 G

8 B& t. D9 N0 [  i; t不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving* S, j3 _, M( B1 W- u7 [% v% g( y
move into Q_wait /*Capacity is infinte*/: F! `- o5 l# v
move into Q_process /*Single capacity*/# u9 m3 b; ?2 p# D
  R8 I5 ~9 i+ j8 l8 \
use R_A for n 60,10 min /*Resource A*/$ G) Q" X8 \4 G3 @1 K$ z

  j8 c, d( A! E% }- r, [. V3 rsend to P_B
6 _* V" m6 y$ j  S6 [# \end% c* j: W1 I/ [

* g' t" e# P1 x8 e' l( r+ ?. d/ lP_B and P_C is similar
, M" w- f$ b  q+ Etriangular 30,60,90 min
5 y9 S# E- A: J0 O7 X: T3 p5 yu 60,30 min
; s& W% t, K8 T+ k# L1 W# ^# X  }# Z& x- M; s5 A& z2 D) \& Z
! N+ v# A; H- v/ }
in P_C, you need to send to die.4 l' t, }/ o) m) u

3 J0 Z& G% e, X2 J6 z2 J& |Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.: h1 j! m# a; g6 }2 g$ T% z) @

: M, }* M7 `: O5 Z, R( [7 i4 Q2 [- Y7 L
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, 2025-11-23 23:19 , Processed in 0.023244 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