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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,
" A1 ^% `/ u3 \  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.
& c0 R- f' \# v  Loads are processed by each operator for the following time:
& |7 _2 [( V; l! @! r! L- r7 W  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
: g8 x& v- p3 G2 x: a  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.
5 f1 f. @& @" ~3 T! E. J9 l( T  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.5 i, o8 _' ?% @& 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./ @7 I1 @! Y3 c7 E6 {* X
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问题:# u! m8 N6 h$ u# r  w
After 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- m  j- F% Y; x! A2 \# W
move into Q_wait /*Capacity is infinte*/
* v5 p; K) R3 h/ t3 @; S$ Wmove into Q_process /*Single capacity*/( e* B" A# _5 {5 @' y  j
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use R_A for n 60,10 min /*Resource A*/
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& I4 a2 e, ~. ]% _3 S! }5 F* h; Esend to P_B5 a, A: @+ u2 o* L! g# S
end
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P_B and P_C is similar& v: e* x: h0 j# h
triangular 30,60,90 min
: f. k: d& G1 d8 S% Ku 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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% Z# a% X0 s; }0 MRemember 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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