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: 4446|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,
$ a' Y$ p5 O7 \8 b; d: f" V& G  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.
: f% b: l' K9 C, q8 H  Loads are processed by each operator for the following time:9 a6 C6 e) G; s! h
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.- y. }# m1 m8 B6 ?& t5 U- F
  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" S; f: F: Y2 M
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.4 M7 l: j! \) ?5 M! @
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.
0 b. h2 \2 D8 j; G: H; {6 ^+ |) W- R, z' F& b
问题:/ O0 i5 P, Y3 b# O; l
After running the model for 10,000 days, what was the average number of loads in each process?/ C; g( l1 x, f" U( q4 a3 D

0 B' q/ _1 j: ^  B, j1 _. C不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving1 s) a6 P: Y3 z
move into Q_wait /*Capacity is infinte*/
6 ^' z8 v/ k( g- n" G7 U& h* w) cmove into Q_process /*Single capacity*/
) j" t* j9 W& |5 F' R1 s3 y
9 F# ^' i0 W- C$ huse R_A for n 60,10 min /*Resource A*/
$ w) l$ M0 w9 C0 q6 {- [% `7 O" ^% [! j$ o9 W
send to P_B9 w; c+ A9 N. P# |
end
6 p  G" C) E: h1 ~  @/ g: N6 l
2 j) Q  \( \" nP_B and P_C is similar
3 h3 g8 y5 {& h9 e9 z7 p2 W: Ztriangular 30,60,90 min; q$ n" i" G' z6 R
u 60,30 min
- M9 r# T+ L2 ^; Q6 u4 [/ u( }! [' o2 @: J0 h: q" f6 N

# {. q9 s8 u- k0 V4 h/ _  f- Q, tin P_C, you need to send to die.8 k4 m8 _$ j# k- |
/ u2 m, A3 x/ F8 Q  G8 T( X
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.1 c; k/ ?5 d8 Z4 a  e
$ ~( O* O6 L; {3 ]3 I

2 d! N! O  j7 I0 k- yRemember 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, 2025-2-2 00:51 , Processed in 0.016198 second(s), 17 queries .

Powered by Discuz! X3.4 Licensed

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表