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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,
( p0 ^: G% q( j! S" N6 g4 f  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. K3 R$ K6 w+ l8 n6 r  Loads are processed by each operator for the following time:' N8 }6 \0 |$ U/ T& h" A$ l
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.  l3 a7 n# i; E; h1 O$ p
  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." k# t: g* E8 Q( C! Z: v3 s
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.$ n+ @7 C( v# c
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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. n/ A: b* Z0 ^( h问题:/ e! i1 Q# G* T* |6 f
After running the model for 10,000 days, what was the average number of loads in each process?! l- c% d4 g% R( b* ?( p( P

9 Q# F' T5 O2 H8 M不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
' n9 a  [# l' O- c' C5 \# [1 rmove into Q_wait /*Capacity is infinte*/
% G& M# Y& k- cmove into Q_process /*Single capacity*/1 m9 J+ Q, B6 f: K) C
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use R_A for n 60,10 min /*Resource A*// p: i& m/ X7 O' R* p
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send to P_B
- I8 ?' ?5 r& Lend  i' i' p! S' K9 K/ s8 y% f
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P_B and P_C is similar* W2 _5 X" u. a- R
triangular 30,60,90 min' h- L+ e; H9 ~5 V7 o+ t
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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& s" z8 G/ m' bRemember 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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