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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,6 j) Q3 [/ q  I+ I
  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.
- O6 Q2 B, ^2 O  Loads are processed by each operator for the following time:. i( |8 r  n  _( w' k- c, F  t, @) q
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.$ k( ]. s; n+ i6 j  y3 a7 B
  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.2 g% j7 E7 _9 c( ^0 p4 O
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.; o% u/ U8 k7 Z/ \
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.6 d" L4 V. L! V# A& _* _
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问题:
6 i6 [4 I4 h: m' XAfter running the model for 10,000 days, what was the average number of loads in each process?( Y( L2 y+ K9 m: B, `) G7 z
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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
# \. \% e& c% i( y8 Xmove into Q_wait /*Capacity is infinte*/. j' Y7 x2 z- b6 V( v! q6 s
move into Q_process /*Single capacity*/
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2 Z- D, l5 T! o! J6 Y* puse R_A for n 60,10 min /*Resource A*/
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send to P_B6 V$ _- R/ v0 O5 T' \+ R" c
end, J) i9 b0 T+ O  H

3 f( k4 t; }/ m# lP_B and P_C is similar9 Y( p! `$ P! r& G8 i5 T- k
triangular 30,60,90 min! f% c+ }( [$ z! _$ g
u 60,30 min- r! r, o  v% i% n

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+ Z( p% r# B& G: r& D, i- pin P_C, you need to send to die.
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( `1 {0 f8 @4 O3 Q- i7 U" s4 lThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.' W& Q  ^* w# m, S( v" H9 \

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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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