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: 4447|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,% Y6 T$ j' W9 H' }6 p0 U  y
  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.
; ?: t: I. J  p" f: y6 [* \1 M  Loads are processed by each operator for the following time:
' A. {0 k) ?7 Y$ M& A8 U. ~2 _  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.( G1 m' a0 D1 k( _" e. [
  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.- i( f4 }4 p8 m, L: \6 D( G7 d
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.# A! X8 v+ B; v5 [
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.& u9 V" o1 q" _0 ^  z
) W8 y4 n3 s6 J
问题:
9 @- S9 j& H* X: O% C, O. V/ gAfter running the model for 10,000 days, what was the average number of loads in each process?7 u5 K& c0 V" V% R/ n8 N

% B( `- j) c* P5 W! s不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
( K2 R; ~/ P$ G* c, m' [move into Q_wait /*Capacity is infinte*/
$ v8 p0 _8 @& C8 amove into Q_process /*Single capacity*/
4 {0 T1 S, r$ W# }$ {( N1 m1 W
use R_A for n 60,10 min /*Resource A*/
) a/ R. b6 B/ T% Z* S9 [* P( I( b5 S/ Z2 e. P% P+ k
send to P_B( J/ C" Q3 ^  P$ J" x
end9 F8 y! M$ H7 R5 ^2 @  b9 i. `

/ G- A3 e. F0 G8 \P_B and P_C is similar. c' R6 y, l7 ]9 X2 |
triangular 30,60,90 min& G- C9 r; p  i6 h3 I0 p( I8 Y
u 60,30 min$ i6 l9 A1 T9 ?) Y* t+ r/ X% B

. I5 p. [9 D  E' S
& U9 [# R- u# ]in P_C, you need to send to die.
# Y- o! O& M7 A# z, [* C# o' [9 Y5 |1 Z* m, b9 z5 q
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.' u' P) a! D. p

" q0 ?% \( S* N! \; `& A- y+ }2 r* Z: u8 _* _  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, 2025-2-2 00:55 , Processed in 0.013670 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