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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,# h4 y$ X7 ?, 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.
/ w  O; H2 R9 M& N) o  Loads are processed by each operator for the following time:2 u4 w) Z) v8 M& o' \- J
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
1 h% M' ~5 x+ k: ^- p# ^  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.' H0 X4 o$ J; f" v  H; {  p$ J( `
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
3 v* h% ?. G$ w  I3 t) MSend 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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问题:
0 C% l* s" K# ZAfter running the model for 10,000 days, what was the average number of loads in each process?; k; E! H* }; g$ N" j$ X8 A, K  ]

/ ]3 [' A5 }9 R不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving" s+ o0 P& s# M
move into Q_wait /*Capacity is infinte*/
) x/ d  Z6 L7 q1 y. s8 C" ~) r1 nmove into Q_process /*Single capacity*/, ^6 D# e5 t  u6 Z/ I* j2 b8 t

+ N' o0 U& [+ b6 Z0 @: vuse R_A for n 60,10 min /*Resource A*/
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& K: z) k$ O% B+ U  L8 M# Psend to P_B
: Z: J# n: ^0 send
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P_B and P_C is similar9 P$ z+ J  |- A& J, q- _8 r' X4 H: t4 u
triangular 30,60,90 min
8 _2 L! h1 c8 E+ Y& p' W; Tu 60,30 min3 `) N0 n) w5 _  d6 o8 ^
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in 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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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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