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: 5954|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,
) z& a" A8 ~0 _  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.
$ z5 W7 ^3 N" _% Y4 Z% u" m' Z4 c  Loads are processed by each operator for the following time:* n. C3 G5 ^1 |9 c2 b
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.# S2 [- d9 Z$ `) l% p0 w* _5 x
  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.
" p+ ^7 y, C/ _1 t- `" ]  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.! }1 f- N7 q  K" 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.
' a$ `/ O+ Q; n$ s4 ^+ e- ~" x5 f9 j
问题:
* ]$ ^$ }- o- }8 A3 KAfter running the model for 10,000 days, what was the average number of loads in each process?
* Z) V& O1 O  e- m7 U
# L; w* S  e1 f4 y不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
( }/ o6 _$ M/ i  }move into Q_wait /*Capacity is infinte*/
$ m9 Y2 z1 J9 Q; X1 n+ D" emove into Q_process /*Single capacity*/
* S$ x# X, a1 n) P% `8 R* I) W% j3 R0 ]1 @# O/ A. @
use R_A for n 60,10 min /*Resource A*// X! W" X; M  @3 e2 v! F7 B8 u. A
7 f+ ?! Y5 {  _' f+ L2 |
send to P_B
7 I4 d) [3 W0 c' pend
# E" f! h& N' ~2 i
# F5 t  G& f6 C- OP_B and P_C is similar
* I( ]4 T1 }5 N8 E% jtriangular 30,60,90 min3 K! _& X# Q3 A/ {! E% R  c' h; k, t9 D
u 60,30 min
2 O8 D; q! X& W2 |0 \% r7 G, X& P
( M- Y( X0 @0 {3 R1 t5 [
, W* t3 I0 i4 z0 D: }in P_C, you need to send to die.
, p/ x/ o; I2 U- F7 {' G0 X( E& P' a! H- B3 z
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.3 ]* Z! Y7 ]4 T5 J8 [

5 V, N% |1 c9 z7 g
5 C! a( y( T) w9 g( T4 g4 t1 D) x. P( dRemember 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, 2026-1-20 08:11 , Processed in 0.909452 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