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: 6368|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,$ E$ r- n4 Z8 n8 E* N; y9 @
  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.$ ?( o8 D) k* Y  n; J
  Loads are processed by each operator for the following time:* u; h$ t+ h8 w5 I, F( A- s7 H
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
+ R- |3 M1 Y; U  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.; w* D+ X  u! E
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.- i3 _: _3 J; i# g& A  ?) V
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.
% d2 y3 _8 b+ x0 X3 I0 h
  s+ {. r- Y8 W  a问题:
# c0 ^6 Y# _( Y' n5 @* @; \& jAfter running the model for 10,000 days, what was the average number of loads in each process?! U3 N* b9 A6 y% n6 {2 X3 a& r
& v/ c' z* \9 y
不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
3 S, y+ P; @' r) I* p  zmove into Q_wait /*Capacity is infinte*/
9 u4 P9 Z' t. _move into Q_process /*Single capacity*/. M+ {! t1 _& l2 m. v' S" T

( b/ ^* ]$ W7 }" S5 y6 f1 ?use R_A for n 60,10 min /*Resource A*/
+ d0 r% @! ?/ c( P( `, o7 U: q6 }7 s, \8 P4 A
send to P_B- E# [2 f# N0 m& u9 \( T
end
2 A& k- |0 C, ^6 l/ R9 T0 M5 m# F: C9 G
P_B and P_C is similar
, |) g6 l  z# c) ztriangular 30,60,90 min
! F8 j! D  p( ~# {9 Vu 60,30 min
* Y* G0 L5 ?. G; |
% j" q4 m% E% {) W- b8 ~' P) q" b7 k  a( E* z/ |/ f$ R
in P_C, you need to send to die.8 r/ F. f7 j8 r' K2 [4 c" Q! s* U
  J( I; Y# I/ a; I" ~/ ~+ R
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.: K9 w1 X$ e# s! C( v8 z) i: ]
! x7 q1 ~* |3 e

  T: _" Y6 u- X* t9 gRemember 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, 2026-3-13 20:17 , Processed in 0.012091 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