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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,
- E+ g4 x" i7 ?; t) P  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.
* |/ F1 [) l% r. w, `  Loads are processed by each operator for the following time:
& n, o! Q  A) p3 w0 Z( J  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.. h1 Z" O8 d4 a3 V  G, m: u
  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.
+ T3 J# j# ~1 R9 N) B0 k  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
' K/ b/ |; v" H% d& p! ~; w: PSend 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.' ?. h4 i; o* j8 z
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问题:
3 d( f3 S4 B9 T0 C% {After running the model for 10,000 days, what was the average number of loads in each process?
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$ G' \8 |; ~4 }+ }不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
( N, \  [+ R6 v, e& Amove into Q_wait /*Capacity is infinte*/
9 N, W, F( P/ r; H* c' P1 _7 smove into Q_process /*Single capacity*/8 W4 Q; R8 U! g
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use R_A for n 60,10 min /*Resource A*/
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send to P_B) K, ^  ~  F6 n: t1 x( W- Z. O
end  f, B& d% o  w! A# E

+ m, I/ @/ g( q9 {7 K8 nP_B and P_C is similar
; a3 {) U- u2 S/ X  X; o/ otriangular 30,60,90 min6 h* p2 O- G9 l$ P! i
u 60,30 min
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, b) V9 R3 W" {+ Sin P_C, you need to send to die./ L4 @1 f! X) l' b5 Q& _& {% ^
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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.& J6 I2 }' k9 C' g

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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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