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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,
; q1 S. T; Z5 B! O/ G  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.
+ q9 ^1 ]* z- F9 F$ m  Loads are processed by each operator for the following time:
" Q* q4 s/ y" ?$ Q- L' ]  ~: K% W  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins., N/ p: x! A% y- Z  _
  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. }4 g$ {* P8 P2 ^
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
4 A- d" L6 r# F& B" f# r( e# p8 ISend 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 q: I6 c) _0 H5 h
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问题:5 Y5 C, y' B3 P% L0 d. \. h( M
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/ W: r$ e$ d* e0 l/ j
move into Q_wait /*Capacity is infinte*/+ V3 c- F( g, _" ]. u1 P' F
move into Q_process /*Single capacity*/' s# c: U. U) X' w' v0 b

5 s, v+ z0 ?- i" M  Cuse R_A for n 60,10 min /*Resource A*/
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: B& d) k+ p) {send to P_B) C0 [) e8 _* [! M. }: x# }
end
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P_B and P_C is similar
* a! p0 ]' j) Z7 k9 ]8 Qtriangular 30,60,90 min; `4 q% ?* K# [+ O- w9 o
u 60,30 min
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in P_C, you need to send to die.1 I% f1 I' g* V) a+ i+ ]
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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., y# N+ v0 P! ]
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0 k7 v9 p8 Y7 s: yRemember 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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