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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,
/ x- E! M6 w" v5 n6 K* u  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.
7 k  H7 w( R6 Q  Loads are processed by each operator for the following time:
5 P3 u; I- ~8 w6 q  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.  ]2 B7 M# ^) X) n; M
  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.
# O& ~* W; w% n, _% ]' k  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.9 f3 M3 q4 u( p' G
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.
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( G, _7 E0 O' w问题:
4 W2 k- j( H+ L1 M  a5 _. J+ U- ?1 q% OAfter 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
% c( Z! J+ L, v+ B5 J% H( F1 omove into Q_wait /*Capacity is infinte*/) j5 Z, z3 |% ~3 T, B8 |5 w
move into Q_process /*Single capacity*/
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) N) w) r/ R6 |5 c4 U0 t1 Ruse R_A for n 60,10 min /*Resource A*/
  R, N2 l: [0 S1 B. Q2 Y7 v( A
: J+ p* N5 J" g; Fsend to P_B
1 t5 f4 e2 X1 l: ~8 F% Eend
$ V" H% A. `% [
3 |) _- R& L/ r' D/ G, iP_B and P_C is similar
" v  [; t3 i- f3 @2 ~triangular 30,60,90 min
: k- y2 p: ?/ c' Tu 60,30 min) B! a: l  a( D" X6 K8 I
" X' ?' l: X3 w2 P8 X4 G  }

8 u9 I6 O/ [) V6 l! Hin P_C, you need to send to die.
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' p7 E" }) ~  O6 J( {  QThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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' x! |6 S. e2 T- VRemember 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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