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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,
6 c* D! g0 s( y, ~  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.5 A# s+ X/ E% O; \' d. m
  Loads are processed by each operator for the following time:& |' j" Z7 x2 B, C3 p
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
& z. L3 j, M8 `% l- m& \& a6 V: s  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.
$ i3 N" p3 I5 \/ }  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
  L' Y" H  z" v3 {# V- bSend 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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7 P- ^" ^6 E& `; ~& R问题:2 O# I0 w( |; J4 G- |
After running the model for 10,000 days, what was the average number of loads in each process?2 _8 X( U+ ?$ y2 c  r6 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 arriving4 ~1 J$ P2 V) D) z2 d5 u* X
move into Q_wait /*Capacity is infinte*/% h- Q/ d/ [( m: P) d0 M
move into Q_process /*Single capacity*/
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$ |) L9 P& Y/ `0 y: b7 Guse R_A for n 60,10 min /*Resource A*/
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send to P_B
, n& U( ^  ~: u, Q( iend
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4 W$ i9 s+ e( gP_B and P_C is similar) I  d: H2 B3 i) I
triangular 30,60,90 min# A9 {) W$ A( j% N' i- {
u 60,30 min; b: d" V( j! n7 r6 W6 O( O5 M
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, r: w) U0 t% D+ Nin P_C, you need to send to die.# H' I- N2 ?' _6 I6 E) v
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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.8 }5 h; y' g8 \. O. g2 x- ?7 ]4 @

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3 U2 P- r9 v- g! J9 ?& aRemember 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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