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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,
# p& R% B+ x& y4 ^  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.
& @# P- p. S9 G' r: I% x( f* }  W  Loads are processed by each operator for the following time:* v& \$ O6 \. i' t0 J: S
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins." U! t& k& L# 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.  C# @8 G5 |/ M, K
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.  h3 `3 K- n" r, a2 D. A* n6 E
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.5 e* x3 @+ M) u6 H% n
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问题:& c2 J' [1 Z) g* {/ D/ 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: ^; b/ K5 S# s3 r2 O) M
move into Q_wait /*Capacity is infinte*/$ ^1 Y1 q3 k! W; Y* R
move into Q_process /*Single capacity*/
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$ h( O' y( B- u# ^4 Buse R_A for n 60,10 min /*Resource A*/
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% N( }- u: A% g5 ]send to P_B5 q% a* ], @& d+ R; `# w/ J+ ^
end
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4 y4 l# j. d: Y  ]: CP_B and P_C is similar
$ F' U! Z- }. {- y! X& f6 Otriangular 30,60,90 min
$ u& b9 M( H* ?4 [; p) a. Fu 60,30 min/ ~0 K7 g  ^$ O  {( f+ b5 m

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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.' @3 E9 F/ Y1 C- \( F- C

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& O' Q7 I1 |+ `- G- e! W" 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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