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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,3 x3 \% K( o+ ~  e3 k
  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.
( z" H  G3 ^% ~: C  Loads are processed by each operator for the following time:( @$ l3 p6 D. C
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
& g. T! v% G$ h/ v  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.) s; {) _( C( G5 i% H1 U3 Z, e
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.+ r. l- P5 p3 j2 v: ^# K) O# E1 u
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 w- R8 a8 s, U4 B& q! d
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问题:2 ~( c( @' h4 a3 p8 G
After running the model for 10,000 days, what was the average number of loads in each process?4 m& k' D! G& C  U6 Q
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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
: s" L& C' R  ^. @move into Q_wait /*Capacity is infinte*/
& r& y, k8 m$ ], B: V& x) a  ?move into Q_process /*Single capacity*/% v3 f! ~5 e* J  H+ @) S+ j

" S7 t/ Q7 J: {; \, l& p7 Z+ `use R_A for n 60,10 min /*Resource A*/' N! Q& G  x" q6 [8 T, B& M1 t6 }% O

/ r2 f+ ~2 u; z; U3 T/ Wsend to P_B
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P_B and P_C is similar0 J) c+ l" `7 d' e
triangular 30,60,90 min8 A( i% f2 ~( J
u 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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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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