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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+ l& }2 _0 ]* s3 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.
' A2 v0 R$ s; m5 ~  Loads are processed by each operator for the following time:
' p2 H0 x: M4 H$ Z2 y  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.: P: R8 F+ T3 f
  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./ b5 Q& X2 ?1 n
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins./ r6 q7 Y! m9 \/ s9 V
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., K5 r% n+ f5 _, q. K- q

3 E5 c, o3 m5 O0 V9 l问题:
: R: j3 C5 R$ V! G! K' _  U) @9 o$ @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
6 M( h& P4 h) Y6 t4 W# {1 G$ Emove into Q_wait /*Capacity is infinte*/
/ v) U3 ^, R# Kmove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/1 @; f) p7 ^. {6 P9 c7 v: [! g
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send to P_B
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% B1 i8 |4 f1 J6 f( ~; O( ~; vP_B and P_C is similar
: g% o: S: D2 o' `) u6 [triangular 30,60,90 min
( o8 M+ r% o8 _& W" _u 60,30 min2 G, v# `" `+ ^0 p

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2 L8 X/ E. ^% i( N; \6 |in P_C, you need to send to die.$ L. r- ]( v) Q7 {. t& Y

4 b" H/ L& q: l! W1 ^& y; u$ _! hThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
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: H6 J; Y- g0 o! g) k2 YRemember 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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