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: 6209|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,
( c8 `9 A! p8 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.% a- L( {5 D0 c, v
  Loads are processed by each operator for the following time:
9 R* @8 d% B" ?: E5 k0 |- l/ d  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.( o  ~2 O5 m; P2 m
  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.
5 B2 H8 x" B! I  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.5 ?% z6 x- g/ y. h. u
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.7 P0 h- R" U( C: H. f+ n* L3 {

( D4 R2 f2 }  v) z# ^问题:
, }5 j, z/ v1 {+ X3 e1 N5 H+ zAfter running the model for 10,000 days, what was the average number of loads in each process?  g  w; p3 V. z

+ U$ x1 j" e2 r+ {5 p& p6 L% W不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
" d. h: g) ^: |& ymove into Q_wait /*Capacity is infinte*/, R; u6 G4 F" x3 f' O% L
move into Q_process /*Single capacity*/) B4 ^/ f! H) I  ~9 q7 u5 L% P6 l

9 ~! r! R2 ?2 cuse R_A for n 60,10 min /*Resource A*/
" h4 x. R8 G4 t8 ~5 \# p0 h
+ e! D2 b2 P2 ^& E# n, msend to P_B
' M( B$ @7 R6 _end
8 ?' W! p( H% N( s* g* g' o+ T
; u8 ?# }9 u2 t$ K; [P_B and P_C is similar
: d5 y% @  u$ ztriangular 30,60,90 min! u; a9 m3 F+ Z9 H2 J! ~! E
u 60,30 min& Y1 T: d  W1 ^1 v/ S. A

! w2 C6 B# h/ P% a& ^9 q& w* \1 z4 G( Z  r" l
in P_C, you need to send to die.8 U2 q$ x$ Z" S+ e
+ |1 u8 x+ x9 o/ G! A$ B: P' q
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
0 g. T( P9 {* \  j1 k* [. e& q- P% |( [4 D7 E9 _
. P. ]2 p+ `2 [; a3 W0 W! d, x: ?
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, 2026-2-22 11:17 , Processed in 0.016114 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