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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,) R+ f- r- z8 O
  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./ c! t# j% X/ d( B5 V6 ~
  Loads are processed by each operator for the following time:+ P. f3 c8 ^* v1 {
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.- `; _2 S8 [3 e' t" G
  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.! e: `. C! b7 n, d0 l
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.; G- F$ [. I0 L
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.8 O( z! s( x  s
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问题:* t! p, ~" Q1 `% ]
After running the model for 10,000 days, what was the average number of loads in each process?9 k5 g$ k# M3 B$ ^: S
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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
% X- l$ M% `* p! F6 H% v6 q+ {move into Q_wait /*Capacity is infinte*/; I+ R8 E. W- |( q+ g* b
move into Q_process /*Single capacity*/9 t7 e& L' E" s8 e# C" x, p" M

1 p1 R7 O* l$ ^/ {use R_A for n 60,10 min /*Resource A*/) W+ Y! x, d6 @2 }) I" n. b5 Z
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send to P_B
9 A8 _0 |" `% x" C, Lend
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* q6 L9 E- F/ Y$ KP_B and P_C is similar
# V, j( U3 [: t% w/ E, E1 mtriangular 30,60,90 min% k! x) f* f- f
u 60,30 min
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in P_C, you need to send to die." v- N' x! Q% o( M; C" e# ?; D
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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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