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[求助] 本人初学auto mod,有一道题目希望大家赐教

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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,
- F6 U, A1 ^0 [  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 |9 T- O% {& I
  Loads are processed by each operator for the following time:3 b6 e+ f/ e* O6 v- c
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.- c, S1 G0 D* a, Z4 Q) }
  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.
% Z3 ~# I- t- p/ v  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
( @  J3 X' H! W$ Q1 V- }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.
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问题:6 f$ F  p4 V3 D- P& D, l& u
After running the model for 10,000 days, what was the average number of loads in each process?
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" G0 D# G4 H6 M& X+ X不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
  X& c  _! Z9 S' G2 Wmove into Q_wait /*Capacity is infinte*/
0 Q8 Y- m% _. A" i0 pmove into Q_process /*Single capacity*/9 Z$ x* U% U" W$ p' D( g2 G$ O4 U. M
. F$ ]) k/ K2 }3 b. O8 B
use R_A for n 60,10 min /*Resource A*/
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send to P_B8 v( C2 U# Y3 o3 H8 P
end
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6 V/ x$ k) E) R+ J' VP_B and P_C is similar
7 n' _6 G$ g2 Htriangular 30,60,90 min% i" [7 [& E+ c& B4 A" ~
u 60,30 min8 d1 G" w: @8 w+ V* p7 Z1 a

0 z6 d% u. T7 I" Z+ s
: A3 W# g7 N. lin P_C, you need to send to die.6 Z. B: r9 ^5 ?3 O3 g' T) x

# i6 t; Y3 F+ @; e: N/ _+ g/ H6 x. CThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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& _4 K7 p& ]" u* k2 z  |Remember to turn off the animation before you run your model.

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 楼主| 发表于 2009-10-27 23:53:02 | 显示全部楼层
thanks...
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