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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,) q2 M1 V/ n  x' Y, 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.
; U6 b9 h( r7 p" L4 i. J  Loads are processed by each operator for the following time:
% d& d  j, }  j6 h, v& F  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.4 c( O% A7 i4 y
  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.
- a. r& V9 `& _  S, A& e  Worker_C does the job in a uniformly distributed time between 30 and 90 mins." C, }+ g0 d; \4 e7 g8 L( g2 f' ?
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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0 B1 N, _) l6 K: C问题:
% z5 Q+ {1 A+ y: ]/ x% a3 `- NAfter running the model for 10,000 days, what was the average number of loads in each process?
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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
9 w! m+ V' ^0 L  G) N0 Z% z9 j! hmove into Q_wait /*Capacity is infinte*/# J. B% F, s( p0 Y) P0 x5 Y
move into Q_process /*Single capacity*/
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' X+ ?& I7 M+ ^$ }& N8 [use R_A for n 60,10 min /*Resource A*/
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send to P_B
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P_B and P_C is similar0 J6 u, O2 K2 I  z$ s
triangular 30,60,90 min' |8 b$ U4 `& x
u 60,30 min
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in P_C, you need to send to die.
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, I: v" p1 Z9 `  v' W- yThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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3 E1 I3 {3 m6 @* sRemember 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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