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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," p1 Q- [1 ]" d: h
  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.
9 e1 E( S. ^: z$ l! N  Loads are processed by each operator for the following time:
7 O/ e6 v- h1 f! P( s  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
8 y+ U! t: h$ ^3 n  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.2 a( Q$ \1 ?- n/ m0 A/ P) h* ?
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins." \  c& e: V/ u- Q# P, 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.6 c" P/ _3 V  m7 g3 F

" e$ D* V0 n5 [+ Z问题:0 p% m9 k, H1 L# b1 H. ~7 m
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
/ z* j) I) h" _move into Q_wait /*Capacity is infinte*/
1 ?" u3 N/ Q3 J; Z+ v7 Cmove into Q_process /*Single capacity*/' s4 W2 [5 H9 y+ \+ J
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use R_A for n 60,10 min /*Resource A*/" f, q. S6 _3 `4 q
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send to P_B
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& o! @- f5 L! I) p4 Z  m: sP_B and P_C is similar
/ {0 S" A0 j5 _9 r, X" Gtriangular 30,60,90 min
3 S- A0 z) s, R/ @: Ou 60,30 min7 K! B/ k5 N8 u" r, J( ]" {2 E

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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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/ p4 V2 C2 v9 H; U( z* }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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