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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,
% Y, T* I! L  T0 q! a3 r/ 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.
7 Y- r: K9 ~1 o+ h  Loads are processed by each operator for the following time:. g( m1 z6 s- @$ U, m6 O
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.1 o" r$ Q6 D- R5 k! P
  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.
- ^. W& H% ]8 d- a* B' t  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
6 k0 r9 a% e4 _- Y8 OSend 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.; {* _4 B+ ?1 x7 a% F* }
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问题:4 u& O2 H, N+ S: F$ [5 |
After running the model for 10,000 days, what was the average number of loads in each process?
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' A4 K* W, i- f9 y不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving3 T% o! O4 B4 F
move into Q_wait /*Capacity is infinte*/
) [5 C  C+ J- R/ o0 Wmove into Q_process /*Single capacity*/; a9 D% _! K- G* h  X$ F% x) Z
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
4 b& ^, U5 z0 A7 e" Y0 q3 e/ y# {end
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P_B and P_C is similar
& F" _4 P$ e) Y: r, N; htriangular 30,60,90 min1 `: Z* n' P1 @& x0 z0 Q7 D
u 60,30 min; m! a. x4 X! o" U$ X9 Y
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in P_C, you need to send to die.* a$ `9 I" z. f8 i5 ]) \

9 o( R) ^! G3 q6 KThen 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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