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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,
2 z) J/ I6 p) Z* ~/ x  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.$ J6 P1 Q: P6 i9 T' B1 I
  Loads are processed by each operator for the following time:
$ _* Y5 U$ y' x  y% H0 p, ]3 C' ]  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
& _# n6 I5 M" w  @7 c: U3 ~; `  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.- d- U- ]0 V4 j& K, H6 B/ u1 a
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.9 X3 e  w5 s: \8 L0 F* w8 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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问题:  Y) b' ]# G* t2 B) Q+ C4 l" ~" E. ~
After running the model for 10,000 days, what was the average number of loads in each process?) e+ \& d( A. c' I( M9 s/ a" m
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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
  U, m: J6 v/ ^4 M4 r4 |) T5 Umove into Q_wait /*Capacity is infinte*/
# Z0 ^+ D! S# y  m& _move into Q_process /*Single capacity*/
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- l, I1 w1 S( r( y1 @7 guse R_A for n 60,10 min /*Resource A*/
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( L% u: G$ {4 Y  G: R1 q& ^' Ssend to P_B& X4 l+ y$ B* ?( s7 A: L. E
end
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P_B and P_C is similar
9 U; J9 _! W2 W2 X6 }triangular 30,60,90 min
4 [, S+ n1 n- R  Bu 60,30 min- ?; [( d8 Q0 Q9 t6 X- `0 r$ Y2 M# X

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9 F6 a9 M; A1 H" s6 nin P_C, you need to send to die.' U5 \0 r1 a9 g) z) N! _
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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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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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