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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,+ }: b; {! e/ K+ I
  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.( b. A7 [* d  u: Y) l3 D( @
  Loads are processed by each operator for the following time:
9 y. ^" ~; n9 @! p, j5 q  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
) G* z2 _+ s6 l* }* l0 o  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.% O7 n7 T0 V# [( j
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.0 L" O  ?7 l" F+ R5 Y
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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& x$ F! F9 X4 u6 g8 u问题:6 M3 t; n7 R  m
After running the model for 10,000 days, what was the average number of loads in each process?
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发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
' P8 y; N" C3 j/ l( \move into Q_wait /*Capacity is infinte*/
5 U% c3 K1 ~# r5 O. X% n: vmove into Q_process /*Single capacity*/
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) k' s- @/ b2 `- u5 G, r5 |3 ?# {use R_A for n 60,10 min /*Resource A*// P' y9 e; c& F9 V+ _# }

/ X, y( b4 j& y3 ]" X) Jsend to P_B) E( T7 L- C; n2 n. b5 t" g
end
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; n& K  D3 N+ W9 r8 M9 X: l2 K9 iP_B and P_C is similar
1 G  C; K# G. X& [2 U1 xtriangular 30,60,90 min2 p! X  n; D7 T6 z8 C& @
u 60,30 min
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in 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.
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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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