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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,
- j* p8 @' B/ T" R  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.3 E- p5 |$ A- c# _6 m& n
  Loads are processed by each operator for the following time:2 p! M0 l. T9 t2 Y
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.! ]/ t6 R# t: O4 w6 D7 c8 R, \
  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.$ D- C5 v: h) Q
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins./ O/ J" ^; g% U1 R) ]8 M7 }
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.; P. B/ U+ A" M/ `$ ~

% }; _3 K6 z1 n/ C问题:
6 T1 T, i1 S. M( o9 jAfter running the model for 10,000 days, what was the average number of loads in each process?
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1 |. f$ b% b. W9 u! j" h: d( r$ a, f不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
2 b. s1 I! W) l: Zmove into Q_wait /*Capacity is infinte*/8 d" X! c/ }1 L" l2 c0 w* |
move into Q_process /*Single capacity*/% p* m6 X' G! z/ o

% X" B& t" g/ Buse R_A for n 60,10 min /*Resource A*/
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send to P_B
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) B) L/ I5 `/ [P_B and P_C is similar
$ k9 _7 M0 c! B4 }9 i  Wtriangular 30,60,90 min
# ?; Y3 j& w: ku 60,30 min/ c& z, {* S( i9 R7 Q- V, H$ O) n- O$ V. j

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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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5 q7 b- o: B  ^( Y* |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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