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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,
! D- b/ {9 S7 j5 n! L# l  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.
+ w; {* }! y3 z; ]! v  Loads are processed by each operator for the following time:: `* U+ \0 ^; M, `3 ^1 {
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
5 k0 v3 B8 i8 R. e+ [7 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.! v3 c9 y- l4 T3 ?' L
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
% a. f# ~- F* oSend 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.) V5 O, F' u- P* j
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问题:
$ D4 x  q1 d% q5 R( jAfter running the model for 10,000 days, what was the average number of loads in each process?* C& o' x( E- p9 u9 ?0 a
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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, ^  \4 E+ P
move into Q_wait /*Capacity is infinte*/
$ d0 L) L# _; x1 umove into Q_process /*Single capacity*/
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$ Y7 q& c* z" H- Guse R_A for n 60,10 min /*Resource A*/
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0 q  l4 U3 U# l# ssend to P_B( N6 i) W" |) l
end6 O7 |' C. e: w$ Z. D

* D/ C4 x. j, \8 j  d# a& h& h0 mP_B and P_C is similar: N- O3 p6 n$ o1 R- e
triangular 30,60,90 min$ F* N8 U/ P0 V. e, x" I. n( g
u 60,30 min
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3 m8 k& z6 R* J, Z. j+ b; g  f+ Tin P_C, you need to send to die.
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Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days./ z* f; z" I7 b5 e$ p
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( c' J2 j: G( ]8 H# MRemember 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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