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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,
: S0 `: h- Q: A( b" B$ u- P4 L  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.0 q- J4 O3 d& r) B6 @
  Loads are processed by each operator for the following time:9 F7 D: E! Z- S- f3 V, {
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
5 @( z0 u8 t- \2 X  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.! b# `" {) C: G( ?, Q
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
  b5 O; `  H0 ~0 r3 r5 `Send 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.5 k7 }6 ^8 q0 Y1 T4 Q

9 G, B; `) c! n0 l$ H问题:
# C" c+ Y, |; n, [After running the model for 10,000 days, what was the average number of loads in each process?
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! d+ j5 B& q7 z7 G# C不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving/ n( c# G8 H6 u; H: `' @
move into Q_wait /*Capacity is infinte*/
$ A1 r1 l1 \% F9 amove into Q_process /*Single capacity*/& N7 k& q, u. ]& J( R
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
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P_B and P_C is similar+ w* ?  q. _4 M! T
triangular 30,60,90 min3 z5 H- D6 h5 h
u 60,30 min
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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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3 |+ P* n$ B8 {# m$ yRemember 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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