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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,
7 }1 S; s; r4 c6 z; M/ e  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.+ V  u9 c4 \0 U1 t: p9 h
  Loads are processed by each operator for the following time:% X* r" O; Q% G: a7 ?
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.+ N" W! k- l1 V4 h6 a5 T
  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.7 ~8 E, U  C& @4 R
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
/ Q7 s' Y9 j# M% R/ g+ R5 h1 sSend 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.) Y* z$ u/ O, [  a
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问题:
5 x# Q' V, b+ r" [" m- I1 F& |After running the model for 10,000 days, what was the average number of loads in each process?; N# |3 O- k5 W. L5 d; C) n
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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: W. N3 O1 f& v( y0 ?& M
move into Q_wait /*Capacity is infinte*/: J( l0 A$ u6 ^" b
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/1 g/ S* h$ S& F4 j
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send to P_B
2 \$ O1 b6 O5 p  o3 V1 ^/ ]end) F4 `* n. `5 ]$ G1 Z
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P_B and P_C is similar, S+ O( a1 M& H7 q
triangular 30,60,90 min* `) b, k2 R' |- [9 e- J% q! m
u 60,30 min# s% F1 l, X; H( `! ^5 E, {2 D

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in P_C, you need to send to die.3 o* B0 K! Z/ B$ ?& u; v. \0 c
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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.( N, P3 `' N% t) \& A* r

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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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