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: 5765|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; R6 \/ Z6 e$ Y$ E
  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.4 v# E1 \) R" M" L+ m. W
  Loads are processed by each operator for the following time:: D& [0 \6 P; s
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.7 h  t; }- p/ ^9 h7 P
  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.( M# b7 f! m: B6 v0 r* R
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
- n2 Q) \$ |- p4 _. mSend 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.
" C% d9 W  w& G2 B! }
, {) @: b4 x" w. {5 P$ k4 e( l问题:
* `( R( T8 ]( c* j8 k$ ~9 cAfter running the model for 10,000 days, what was the average number of loads in each process?
: }: d' g8 ]* X- W
: ], p5 s* m# @# X) O不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving. A) v$ c3 a9 V* u# ~7 X# U, Z
move into Q_wait /*Capacity is infinte*/
# Y& i# L& l2 f' M6 v) xmove into Q_process /*Single capacity*/
1 C9 C' v9 }# i
" l  x/ u) {3 o' e& c) z, P8 ~use R_A for n 60,10 min /*Resource A*/
5 G7 W+ i; M6 s8 t" ~+ b- P9 w$ b
send to P_B7 z$ g# _8 @: X- Z
end
& Y! a: U! [7 D' {' M- L) T
+ ?: _( m- ]  K; f/ B5 wP_B and P_C is similar6 v3 t  L/ w2 `
triangular 30,60,90 min
5 M$ P2 Q/ j2 T7 h/ Uu 60,30 min
  j; H- G2 q, s' y$ i, E3 p- l8 x  {& j5 u$ F1 _7 q

% h; C2 v( `3 N1 D; G6 D0 pin P_C, you need to send to die.
* d' s$ w2 O. p0 j- f" l2 L
2 L5 P0 M( e2 N8 _+ w! \& j  d" lThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
) m0 A1 e. R" L3 Z
; Q/ W$ v9 Y2 S1 K, m/ P& P; m6 ^
. K' P+ v# Q; f  Y: b! ^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, 2025-12-13 21:06 , Processed in 0.020664 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