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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,
# q: r$ R& d  ]8 G$ t% V  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+ [) r, v. k" h) T! @  Loads are processed by each operator for the following time:
7 _. j, a. L- e9 H  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.( ]4 }% J" v* 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.
, u/ h$ E" w& Q# Z  ^9 I  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
* ?9 N7 W  q1 \$ 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./ k# ~0 Q: G9 E
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问题:
, z: v  m8 c8 c" ]3 ~9 U7 c' q6 [After running the model for 10,000 days, what was the average number of loads in each process?& F, k" a6 T3 o! C+ y8 e
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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 arriving7 s) `, {" J; A# C( f5 b
move into Q_wait /*Capacity is infinte*/1 N" \! I! Q1 \
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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# u- q& V6 x3 e# z5 `send to P_B
* `5 b& M1 y8 o  g/ |6 zend" K, ^0 K; S: C1 P' v4 _, S
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P_B and P_C is similar/ _* u: W3 W# l1 `7 u- ^
triangular 30,60,90 min, X4 o, k6 t% R2 S( J* ?2 e! }
u 60,30 min
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. u; M  ]! S0 z5 _% i- J9 ?2 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.1 T  A& |5 @' L4 ?

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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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