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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,
2 x9 U9 `0 B# ^$ ]' A  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.
. t! ]% \9 c( V! g  Loads are processed by each operator for the following time:4 o  Y$ q4 Q( h, S, b% W5 b+ f# d
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.: v* u& C! J* @* E
  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.
* x0 V( ]8 d. g) [2 @5 P  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
; R) X+ B" y' Z8 LSend 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., {+ q2 Q4 {' |

7 P& o6 }3 I& @: e- t* A0 u* [问题:, K$ S! {; u9 M: G2 m! }) \3 y* f
After running the model for 10,000 days, what was the average number of loads in each process?7 S8 M/ S8 D+ A& S2 U
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不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
: s+ |2 H6 P" Omove into Q_wait /*Capacity is infinte*/
: J+ E9 w$ d$ x7 V- h. a6 [move into Q_process /*Single capacity*/
' x3 P( h* h- N) \4 I- \0 w) Q: ?" }3 E$ {! b9 l, j/ ]
use R_A for n 60,10 min /*Resource A*/
9 I. h4 _" d/ t! J+ A% b! O* E  F2 [0 L2 ~: ?
send to P_B  o8 f7 E6 B4 D  O. ^. R
end8 q/ A& k1 C$ x

- [* @2 g8 G5 ?: ~5 }P_B and P_C is similar
3 C- r5 W+ j+ f" S; V8 ^, {triangular 30,60,90 min  N" I9 q/ x9 u7 Z3 l
u 60,30 min
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in P_C, you need to send to die.& r" ~1 I1 W" g& O. s% O4 _' x

: I6 P; S' G- c  k$ C$ P* p  {Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
5 J" ?& p( F; \7 T. `) o+ v2 h% L" L! X3 N4 Y6 l! |# \; a

% F1 b* s+ w' X0 f5 cRemember 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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