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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,
# v, ^; }* M4 a# A  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.
3 E: W; b+ ?3 q# t$ V" c  Loads are processed by each operator for the following time:* ?6 l6 z: u  @0 j. n
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.5 y1 P8 q+ O; Y' @$ @, q
  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.
3 C: n! N. z' _- S  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.0 ^/ Y! M7 T8 Y3 K+ U
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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6 }; z  d. h0 J. ^7 o3 h, a: h问题:
+ M+ N5 h" L: u0 g2 b  A3 s; RAfter 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 arriving3 N: E( F" `4 H/ B! Z1 E$ p
move into Q_wait /*Capacity is infinte*/; [( l( f9 w2 M& ~3 B9 [% B0 {7 Y/ N
move into Q_process /*Single capacity*/8 {6 Y! \* ?* H8 h- u+ _$ z

- l9 I$ g! x8 E, A0 x0 Ause R_A for n 60,10 min /*Resource A*/
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send to P_B
7 X- n6 H# f8 u; z0 ~& P. Nend: x6 y( v! V9 b$ n
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P_B and P_C is similar
  m5 [5 V. O5 U9 C* Utriangular 30,60,90 min. ^& Q% @# ?1 Q% k3 H  n5 P6 a! c1 Y- `
u 60,30 min
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in P_C, you need to send to die.7 p( e( t4 c# ^  Q

) H6 c8 ]/ C: X6 cThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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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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