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: 5490|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,
$ T# u: `- G7 U  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.% q; b4 U% s: h9 t
  Loads are processed by each operator for the following time:
/ q9 p0 j+ ^& g  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
& b. ~; A; t0 `  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.
$ P* A, n& `9 U* A8 n; A  N% y3 o  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.% M# A6 D9 y& U/ T5 ?
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.* X6 w" k2 ]( Z
1 B" Y! e7 z1 X3 V3 P: C1 E
问题:' [+ z6 V4 m. l$ R
After running the model for 10,000 days, what was the average number of loads in each process?
; A; K( K6 N2 u, d& ]
1 `6 g4 r+ h) _  m2 ]* O( G不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
% }% J# j- T& Q* f8 [; ^move into Q_wait /*Capacity is infinte*/9 N- b* F$ Z2 ~4 B% s0 L
move into Q_process /*Single capacity*/& d+ d; J! w( R2 ^3 a

& `( {, G: B& i4 R5 R8 q; F1 {use R_A for n 60,10 min /*Resource A*/2 L+ \+ {+ t$ e( T2 I2 }5 ~
+ M3 ^% ?, _# \2 g
send to P_B* M: V) }) ?; c/ _
end
" @/ ?0 v/ c5 }  _& k5 S6 u+ B
- q; a% D! ?, q4 E" iP_B and P_C is similar8 L+ T$ K- V! C# i
triangular 30,60,90 min3 b% x! S# n! r
u 60,30 min, M5 |) _* N% D* w' F1 }. y$ j

, c+ L, F2 |" j! B. d: q) o
" N# s* p1 l! Q* oin P_C, you need to send to die.
5 u7 _( z8 V+ V5 F/ ]0 G5 r4 D5 q3 q4 f, J- z$ l. v
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
# K) W* Z; r* n9 \) _2 _3 [* r
2 A8 j8 X5 X0 h# r7 C' k- Q9 b. e% h; Z6 U7 j# q! S
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, 2025-10-30 23:23 , Processed in 0.016788 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