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: 5886|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,
* Y/ z: [, I" h& `0 d  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.
' U$ F( O1 x8 z% V$ y. h/ ?  Loads are processed by each operator for the following time:
. C" N# A% V. D+ a" t5 H  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.3 X+ X( o& X4 c# L2 _
  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" b) a7 e( T; L. {! C- A
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.8 E- g5 Q. u0 N6 z+ Y4 ~
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.' d" ^6 f3 x, c  h7 w; r
, e* }" m9 D! I! M
问题:& |! o0 y; B* H8 n7 O
After running the model for 10,000 days, what was the average number of loads in each process?
* M2 |' \; V% X( s( p  ~$ I2 j4 U% q5 s7 a4 r; u. @
不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving  F; K: U1 n% t, ~
move into Q_wait /*Capacity is infinte*/
6 P9 A3 [9 \8 ]7 N  emove into Q_process /*Single capacity*/4 j6 a" ^' u( K

5 @0 i( P# c' r- y" U- Ruse R_A for n 60,10 min /*Resource A*/
  l, B  z6 h1 ~0 C$ d! f  ?7 u& ?. H5 h) `& |4 Z" v
send to P_B2 t% G7 ^0 i- U3 d4 K
end% S% ^! I! T# U  j
6 n  w& K8 o9 G" G. T* d  B* s
P_B and P_C is similar
: X' G4 o0 F  `% G1 Ztriangular 30,60,90 min
4 u! w* I; K' Hu 60,30 min( m  z5 Z8 Q9 n
* N* ?1 S0 b4 k, T( f% G
1 J- o* l2 {& b: l" t* p2 \
in P_C, you need to send to die.3 j3 s7 P" q0 j! f4 a
8 c9 B4 X. f$ c
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
! I+ k' I2 Z5 Y0 e6 B, K# W, o( j* ^0 @: _; |
, u: h) s! n  Q& d/ O9 k( |
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, 2026-1-5 14:02 , Processed in 0.014607 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