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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,
% W+ J/ F2 k' W6 D  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.! d& Z1 j( @+ h' Z" \, T. i  g; P
  Loads are processed by each operator for the following time:
1 ?; r. E0 {# f  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.! h8 f+ {+ z/ `" T
  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.
+ {; x& M6 c& J! X' y# k  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.0 Y% i6 c# Q. b1 N& a
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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+ ], v# x1 E$ n$ Z* i8 l问题:
9 v% Z. h/ M0 ]- i5 Y+ _, JAfter 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( W0 w8 ~/ l- S' s9 h% n
move into Q_wait /*Capacity is infinte*/
$ f0 F* v/ p7 i  d- gmove into Q_process /*Single capacity*/
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/ E5 ?" Y1 _; g% N9 huse R_A for n 60,10 min /*Resource A*/$ g/ x: x( Q9 ?1 d6 _( s

7 @: `/ C  U/ k  v' f3 wsend to P_B
, |( X3 n0 y% k1 V% N7 H% mend. @7 w0 P' j  q
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P_B and P_C is similar
: ~/ T( b1 C& Q- s1 y8 Xtriangular 30,60,90 min: d: v9 R& P* ?- d) m
u 60,30 min' B! D2 {" u3 Y
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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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* b# c% P3 O5 IRemember 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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