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: 7901|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,
* _  }5 I# l5 f  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.; e3 ]9 ]& ]4 t' }9 `: p; L
  Loads are processed by each operator for the following time:
: R' S2 P2 y) B8 ^  ~/ z- c; f! u  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.% h) n- o1 }& ]6 @
  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.
/ N5 P! c0 e, H  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.1 q' ]+ K9 m3 ^1 ~# J
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.
$ Y7 o/ A! X1 R$ g* Q
+ P3 Z& ~3 |9 T) ]8 \问题:5 u7 W3 G1 O5 u9 h2 a
After running the model for 10,000 days, what was the average number of loads in each process?
6 n/ v& d& O( a% f) q0 l
& @+ Z4 Y1 ]7 d' q# p6 l+ B不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving! H0 a4 N& f3 {3 }  n% Z8 L: F
move into Q_wait /*Capacity is infinte*/0 e/ p3 K8 |; T% e* s
move into Q_process /*Single capacity*/
, U! D( o; t* j/ M3 R4 Q% K
4 e5 J4 t& w- {- B; Vuse R_A for n 60,10 min /*Resource A*/
' F7 ^  c0 \& h0 V. `6 x: X4 y# K  z
send to P_B
9 a0 S& g* y' u# wend
  ^/ e! e7 v# p* ?- S* L9 r" b3 H: O! d
P_B and P_C is similar
  w( h" N' o0 J# Ftriangular 30,60,90 min
# y, J/ O  @, S# X" T+ y( Ju 60,30 min
7 @# N! s( f- A1 N, y+ c5 V0 O
4 G$ E5 V( @0 j8 b2 ~0 \, A/ e& y1 [
in P_C, you need to send to die.
8 J1 N# ^8 u7 q; g# d8 c+ p
8 @  L6 L. M' S! s- YThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
0 f2 i$ q$ z" W' n* N  S7 v4 |- |  F3 Q
2 q- h8 h4 Y1 u$ D, o
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, 2026-8-16 12:12 , Processed in 0.013885 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