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: 7381|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,/ ?; o; Z& C( u# q
  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.$ C; p) v9 k+ E) A3 |# W0 n; K
  Loads are processed by each operator for the following time:! T% j% h( S! a4 o8 c- D3 Q, i
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.  I& J( w" t" P  X5 p3 `+ q' 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.
0 Y( ~5 u: h1 \4 Q& E6 e  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
6 S$ v2 N1 R, f0 A, w3 u9 {/ |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.% P% r9 D+ @7 w0 \- L' D
; p- {! e% e8 i+ U0 G2 v
问题:& l! `$ Q( _& o2 O0 a
After running the model for 10,000 days, what was the average number of loads in each process?
: A( f% Q2 T3 Y* D, L! v, R( ^- T
; {  R1 I* w5 W, W( U% P- k  G( D不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving) B" g6 S) \  }" W% O3 ]: H8 [
move into Q_wait /*Capacity is infinte*/
* p: ?2 z9 B2 H! Umove into Q_process /*Single capacity*/7 G& f) ]8 M" a5 \* F
" f' h9 J: M" q- W; O# i4 ~
use R_A for n 60,10 min /*Resource A*/
# B+ u# G5 z& e
3 n! K9 E# }0 T5 N) y( ]3 esend to P_B
, J& g  u, U* A+ Lend# v* \* D! d, R2 v& i7 Y1 J" s7 f9 z
" d& n$ p3 y9 I% {- m) k% M
P_B and P_C is similar- D3 |4 h3 k, |5 U. N, D
triangular 30,60,90 min  I9 p8 h: _) ~* \8 y/ g2 q
u 60,30 min
1 K- T4 N# f/ L& O! B# N2 }' U: W/ R( H  I) ]
# v& l- P5 G) G
in P_C, you need to send to die.
6 O& J% m5 f- S& p
5 S. ^) U9 O3 j( D* LThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.( K' g+ G4 }+ w& _+ I' ?  p

# ?% c: ~6 m# t7 P) h! M
* I- y# }* y8 K  ]; d% GRemember 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, 2026-7-6 05:45 , Processed in 0.015420 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