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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,
( G/ N( P1 _5 Y3 m0 c  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.) ^  h- P* M. G* Y
  Loads are processed by each operator for the following time:
; |, f  }2 `3 ~: k  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
, Q. t) M/ s" P" d0 S$ g9 V" W! U  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.
& k" D/ C, b! g  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
# j+ f* E" q* f# O& Z, bSend 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.* J5 u2 L- H/ |7 k: i5 D" c, v% a

! ?+ F% \7 i* H, n问题:
! T; x. G5 }4 {& w3 i3 ?After running the model for 10,000 days, what was the average number of loads in each process?
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. F9 N6 h. {7 U7 W( z& T8 y/ J; @不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
* r( u- g7 Q; f- umove into Q_wait /*Capacity is infinte*/
) V$ C0 E) U0 l7 j! n5 r- \move into Q_process /*Single capacity*/
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' U) }7 y% @4 K% E$ fuse R_A for n 60,10 min /*Resource A*/
  I4 f% y1 }% P& N6 |
4 l1 ^# T( W/ U. L4 n* ]- |send to P_B
1 j6 m! w/ W; R* d4 _) z- q+ _end8 W9 ?; A& H: f) Z
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P_B and P_C is similar& ^: G# I% W' w+ ^4 y+ B
triangular 30,60,90 min
+ U! T& e9 Z4 [u 60,30 min
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+ i6 S2 W+ M9 c5 Cin 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.
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1 J) {& V! X2 x( N% B4 c' [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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