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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,/ y& `; q+ q' s1 f+ d$ W7 z# s
  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.
4 Y$ Y; z, J+ C2 i  Loads are processed by each operator for the following time:* e1 ^: d" x8 z. d6 u( b
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
) `6 E# h8 x  }# O1 G& N  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.
, H, w+ {8 g4 I2 z" ^- a% |  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
# m: W4 E" T4 Z6 A" uSend 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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% _% ~9 L3 n  @3 x问题:9 k( j# G5 H0 T. N4 z- l* u# a
After 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  @$ b  W1 i( o" s6 X6 ^" Q
move into Q_wait /*Capacity is infinte*/
+ W% k) {( d# f! F3 f, x( zmove into Q_process /*Single capacity*/
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( d. f/ x, @8 q  H* Z. ^% k3 q( l% Kuse R_A for n 60,10 min /*Resource A*/, Q" {  E9 @: {; ~1 h

/ G) \# A0 m7 X( [- jsend to P_B9 l- n6 z4 S- {# C! p, D
end8 W/ `# H# r$ R5 U5 W
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P_B and P_C is similar
3 U  q( |% ^6 L4 j+ \5 utriangular 30,60,90 min; W5 B) [. A5 h
u 60,30 min# Z: x+ M" x: j* C( X$ @

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in P_C, you need to send to die.
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6 u' b4 p9 `) u0 K$ ]Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.) l, p6 i5 y% [' a6 {

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# y" I3 k1 D$ E% Z. @1 PRemember 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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