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: 8034|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,' _) G8 v7 e; \. V
  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.& w: v! ~+ U3 \& L7 j3 O
  Loads are processed by each operator for the following time:) W8 c5 f; i0 N  K5 _5 [9 e
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
- q' g; w+ P; s3 J6 W, 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.; O9 I5 U( B1 p, L" @* A1 p2 N/ c
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.5 f% A& q- Y  w4 S* D/ A8 |6 e
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.
2 T& {- S: B# d/ l3 \+ m2 e/ _- a$ `9 n3 [% I* ?7 d- N# u
问题:6 v7 [/ I0 o: Y& P) P# J+ |
After running the model for 10,000 days, what was the average number of loads in each process?
* c' J# B; ^* _
, w8 W6 e1 m/ }; e5 y  ~) B不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving* E5 r5 r! u% g0 Z" Q7 q4 P1 X
move into Q_wait /*Capacity is infinte*/; q  k1 ~2 k% W9 I0 o; `$ d
move into Q_process /*Single capacity*/
! c3 J- |- q. r* m: M3 x& n; i3 T$ s
use R_A for n 60,10 min /*Resource A*/- D5 P* X+ p5 O3 |
& o# |8 a! b/ L3 W0 u; n
send to P_B
% E" W: L" a6 x; M. oend- R' h% Q) M( {% ~+ H* ~
" K! h& c9 d' c" ?1 i) o6 E- @
P_B and P_C is similar" ~9 D8 k$ o! B' V2 K$ E
triangular 30,60,90 min
$ j& A/ g, D2 a# U) X% D7 U2 Wu 60,30 min8 i& |: h6 |+ ~: X3 ]. s: S

8 e% L, J8 `: n, j
$ @# d' {/ k5 f1 W( K8 Yin P_C, you need to send to die.
" w5 p1 W0 f& N1 N8 g# z8 c
6 u* ~/ H3 W2 h8 u& }Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
7 J: Z% f5 l3 M+ a2 F& {' Q/ a7 o0 \" i6 T& U- _4 P0 f
$ h8 j# w2 F* c# Q
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, 2026-8-31 20:18 , Processed in 0.014315 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