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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,
, Y1 G$ |) a5 u& L1 G: 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.
2 h- T; o* m: V& @9 b  Loads are processed by each operator for the following time:, s4 E7 T4 B# T0 w
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
6 j3 o  `' C0 |. u8 S( _  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.
9 o  T- X4 U% {, X0 i6 o/ i  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
8 d  P2 L, f; K3 d8 B1 y# GSend 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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: U7 g$ S0 }, k9 ~) o% [问题:
5 m6 k7 Z6 X8 b% B3 @8 T+ B9 eAfter running the model for 10,000 days, what was the average number of loads in each process?
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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 arriving6 O7 k( u! }# H' R7 [
move into Q_wait /*Capacity is infinte*/
% `! L# J; }& x6 u8 x9 Smove into Q_process /*Single capacity*/
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( d) f+ _! [, S  wuse R_A for n 60,10 min /*Resource A*/; g" J# `$ E8 z

7 l1 Y, ^5 d/ u+ A/ Osend to P_B
$ S4 l# |" q0 m& dend" f- w) r) Q5 D* m: v

. t: z, W4 I. u: G1 y7 VP_B and P_C is similar
0 O8 {1 s" W1 A( ftriangular 30,60,90 min, |# f9 O0 t+ a/ @. f1 ^( ^) \! i
u 60,30 min. H9 k$ V$ U1 H4 G+ L  w  k5 p( `

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( ?3 ^$ c, }( B, kin P_C, you need to send to die.
3 y1 C6 l+ j8 J. F; W  \
$ u( `" j  o& ?# AThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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9 w# \: r% U1 ~; h) t8 W! E9 [# [
6 ]5 l+ \! }, p( B; O! u1 u4 _7 HRemember 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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