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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,
+ i+ n4 C% ^) m; z' M$ \  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.
% ~2 |4 y# S3 C8 Q4 _5 m! ]0 Y  Loads are processed by each operator for the following time:" _1 k3 |; ]" T
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
& m/ d0 T, L" J2 t9 a- X, 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.
" Y+ k+ b& m5 O" O5 S4 p  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
/ V: ]7 P+ L& L" G9 @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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2 J: l! T9 ^) z0 F2 Z) m$ B问题:1 p! h- h5 v2 E9 H) t8 j$ P+ p+ h9 d
After running the model for 10,000 days, what was the average number of loads in each process?
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9 a% Q' Y4 t$ n" E. }不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
* ^) Y# k' Z& \0 h% Imove into Q_wait /*Capacity is infinte*/: x! j2 \1 W. S( t# A
move into Q_process /*Single capacity*/. U) F! o  G* i* w
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use R_A for n 60,10 min /*Resource A*/' X; w5 l2 l/ O8 _8 `# G6 W

1 J2 _8 n0 M2 O& y1 Q# Vsend to P_B" \- @! H1 }1 g: K% x& {/ o! ?
end
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. ~1 h  `1 ^, ~+ \/ SP_B and P_C is similar/ k' g! t7 i/ J3 g5 T6 j' N! ]
triangular 30,60,90 min$ A* v' f8 y8 t. L
u 60,30 min
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( x. V% P3 Y9 d* l* bin P_C, you need to send to die.
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% }" C/ _0 d' H4 W- ^Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.+ H  ~; t( I! d# B( J* O5 D

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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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