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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,8 q- }$ q1 f( T; W3 s! M* z
  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.
6 o9 x" e+ i+ j: u" T  Loads are processed by each operator for the following time:
' a9 J& ~- e6 U2 G  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.) ?; U4 _8 ]2 {- h) g% 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.9 \  |0 h: ?. Y0 X# Z& Q" K' I
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.0 i2 k" @( _" _0 w% [
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:0 b/ t$ e6 J; e! h% i& u
After running the model for 10,000 days, what was the average number of loads in each process?( {- i6 g  I% `
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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
" Y4 E, e, |1 u& J9 K$ b- Hmove into Q_wait /*Capacity is infinte*/
1 _$ c- d2 u5 P1 Hmove into Q_process /*Single capacity*/7 F1 U+ [$ }0 v- Q6 s' J/ F! \
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
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; q8 a- k4 N9 xP_B and P_C is similar+ [7 w* I: l2 x* b3 Q2 N
triangular 30,60,90 min: X0 U# N7 O  w. q2 H) K
u 60,30 min
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in P_C, you need to send to die.
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0 l2 E3 M( T% k" v( Q' b( N& t& i( AThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.- k0 c' @  h/ Q+ Y0 {: O

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1 c5 N1 Q! T) _# }" s; L3 F: {# YRemember 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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