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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,
9 l8 C/ l5 B* 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.9 @. T* s7 Q3 B% `4 v" O+ A  i' L/ C
  Loads are processed by each operator for the following time:' g3 v% B: [; e" f( w7 r; k+ ^
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.. e/ }0 k1 D/ n1 }" ~
  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.1 e9 |1 w7 ?9 U" L: M2 p
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
4 G6 `2 A% `' I: VSend 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." j4 {, `& F9 e; m: x
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问题:
( b- Y! q0 O8 r( G' \5 h  @" iAfter 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 arriving$ n$ [1 V$ U& b
move into Q_wait /*Capacity is infinte*/
, U( Q/ W' H* P5 d$ H6 hmove into Q_process /*Single capacity*/0 c7 Z  m' e8 C' l# B' M$ D1 P( n
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use R_A for n 60,10 min /*Resource A*/- @! f$ f( J) U/ ~  N

2 h3 q- a& t  E, Usend to P_B
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P_B and P_C is similar7 }! L5 |! N7 `7 J4 r
triangular 30,60,90 min0 u# ]* S! ~+ _9 A2 j9 O
u 60,30 min6 O" f* j& J; @2 S. q0 \! U
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2 a' _& T4 S1 ain 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.! C& l. l8 u. ~. }- |0 V3 L

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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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