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: 7075|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,9 |9 [' T7 Q6 G% m
  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.
" \0 G" ]+ `6 o0 |  Loads are processed by each operator for the following time:
/ ]/ o, z4 _& H1 t  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.( w: S! @5 m3 e$ G/ o1 T, f
  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.
9 Z" W( w, Z/ y3 ~/ i7 H  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.  A. M5 D3 z5 j* V7 ]3 q
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.6 K* x6 b) F' R  e7 ?
: T- T/ d% t3 r0 V, d
问题:" r0 i' y, O* _+ S5 V( B* ]3 _
After running the model for 10,000 days, what was the average number of loads in each process?. P" L3 p& T1 c' y& i1 ?3 ^) S! a
( ~$ C; F' o1 T5 E) Q
不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving- |7 U6 v- \2 ]
move into Q_wait /*Capacity is infinte*/
( H5 O2 r$ s2 P8 u0 F! |move into Q_process /*Single capacity*/5 G6 P: \! p& D

$ `0 I; M# p7 P3 kuse R_A for n 60,10 min /*Resource A*/
( G$ ?& j. j  U( [* W! W; ~
. V* c; g0 t: |# _send to P_B. ^, {6 C# W3 g1 ~9 s
end2 B1 A2 Y" Y' P# K6 p/ ~5 z
: c( o) k5 `& h  G4 I, ^
P_B and P_C is similar& }8 ^$ L) Y% K( o9 L2 P& G; z, }
triangular 30,60,90 min5 i8 w+ {" \+ d9 o; d6 l& L' W
u 60,30 min
$ F6 ?3 C9 j% C+ t4 A$ X! W) l  q4 t
/ {7 L4 N1 d/ m, ^6 q0 p' M, \! H+ ~/ N+ B. f3 Q" l. l+ w; A+ Z
in P_C, you need to send to die.& S9 }$ u3 [1 S" ~0 S, H7 F

" d1 G4 V3 V1 V$ n- l! I, ~Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
4 w& v  Q% l2 L; p3 x. W
+ O0 d. F9 Z, b# ~( Y. @$ `8 `( d& o( G+ T' J$ ^8 N
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, 2026-6-7 14:38 , Processed in 0.014985 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