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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,  R, o7 r) l1 f
  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.
$ f9 w7 c1 ~( M# \  u0 P  Loads are processed by each operator for the following time:& l& R# G# G% g7 x5 U" B
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
2 M7 ]0 j, c$ k6 k+ T/ I) ~( w  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.0 k* c/ p: q/ J, r( J% y
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
& D- u' L1 s3 C8 X  H. e9 TSend 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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! Q3 A+ z4 X6 y) u, T问题:' }9 E# X8 P  q9 S
After running the model for 10,000 days, what was the average number of loads in each process?; x5 C1 d, Y8 M6 h+ v, _

8 i7 x1 O: }1 x" i$ N8 U7 `) A不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving4 k: m1 Q$ }) f# a
move into Q_wait /*Capacity is infinte*/
1 D# b- C" I/ q; A6 \% x4 `move into Q_process /*Single capacity*/
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+ E' b4 f9 }6 n) a# h& huse R_A for n 60,10 min /*Resource A*/
) s7 [+ g: a' p# |3 C; @: X
$ E/ E* D1 p4 i! M3 N8 xsend to P_B
' u7 i: t% w! C- [- F- Pend
$ B1 Y' s, N$ @1 `- U
; J1 N1 g' v) y) g9 g2 [P_B and P_C is similar6 d" B- l# @4 V$ j( X; S2 V9 l
triangular 30,60,90 min+ o  Z1 u" z) R* i& P# Z; o* a
u 60,30 min
; y% g/ |) i$ ]. r6 K3 Q
; e8 K- d% k$ j
$ u8 A: p' _" G" a) Xin P_C, you need to send to die.- Q; e1 j0 g+ `8 \* @' |% ~# ^; y
' f9 R9 D9 H* O2 T
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.! {' \9 z$ o4 s3 Q9 j2 T  d
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* U: X2 W) c. q- L. {
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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