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: 7228|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' b. g+ p- a( b' j  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.
/ j- G0 X2 z2 K4 x' M! `/ Y' z  Loads are processed by each operator for the following time:
, _* U/ f; |6 W  q1 }. P  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.% X# X% c/ t& \# e: P9 B
  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.) O( r* a1 c, }) E" S0 W. ~$ ^+ c
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins., X' w# G' W: ]0 O, P6 P' \9 Z7 F# @
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.! J8 d2 B5 b* \4 g1 m  v. P4 \

3 T' u/ `8 B3 _问题:
" `; C) z: a6 V8 H/ xAfter running the model for 10,000 days, what was the average number of loads in each process?
4 _: w) i2 y. G: x  X  f1 T  k7 D+ K, Y6 {( X2 e' B6 U
不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
+ P/ _6 Z9 e, e' Xmove into Q_wait /*Capacity is infinte*/' T: |- v% F: W: @* h* U
move into Q_process /*Single capacity*/
4 A+ \  {1 E$ D  r# V: c
$ n4 f; t% x# b) C; P' }use R_A for n 60,10 min /*Resource A*/  k. Q( |2 r% z6 i
: g' [; m* J$ A
send to P_B
$ S/ S- G8 |( s& ~6 n" p0 }8 tend
# p' P# _% q8 v% ^) D
  p, [. ^4 I5 b) B7 E; F- P& t) K4 g! UP_B and P_C is similar
  J8 a& O+ c; i& R7 n7 ^$ _triangular 30,60,90 min
/ L, Y+ q" b7 z1 U, S8 Tu 60,30 min
0 _$ m# p  z: C3 n! u7 c3 E
; p( ?. a- W" R& m5 ~7 I1 L& l7 H9 t
in P_C, you need to send to die.
8 E2 C+ k3 M* M' t$ ~3 f7 l. L3 O) b0 R$ a/ P' K+ a( y* o$ a+ ^+ L% E
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
# c' w' n1 ^7 \7 T' E8 p' R% z" n
5 a. F4 `4 H' b$ C0 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, 2026-6-21 15:03 , Processed in 0.014550 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