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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,- V0 n$ E7 w$ m  C* r$ Q
  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 k" |8 z: z" z. i+ U7 u
  Loads are processed by each operator for the following time:
, b6 b1 T0 d0 G/ \, f8 |; c  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.8 v' \! D% u2 n. p' E
  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., W9 B! W# E1 R: k# r2 i1 {
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
2 g; G, M: P" O* C. ESend 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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) p  P' p$ o5 U6 `8 @问题:' E9 T3 S# y* ]' ?/ P4 \
After running the model for 10,000 days, what was the average number of loads in each process?( w3 {8 p& V# `1 i. C: R0 p- q2 x" Q
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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: Q1 f' {# {+ {
move into Q_wait /*Capacity is infinte*/1 E$ {7 n: \5 O& J! ^
move into Q_process /*Single capacity*/$ F) d) `2 d' O/ s  {1 F

+ \+ v8 w" A& J; H6 \0 O8 yuse R_A for n 60,10 min /*Resource A*/
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send to P_B
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! y" G1 A1 x4 X9 j- QP_B and P_C is similar& P* [# T3 o9 @7 F
triangular 30,60,90 min# u- c" m* S4 G- b! M5 g
u 60,30 min
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in P_C, you need to send to die.7 k! T# K$ F7 c& Q4 x# P4 ]6 X

6 m3 j- L% S% t- A5 \8 _Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.1 Q' E' ~& V3 S/ f. V  l$ h
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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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