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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,
, K+ B! ^% y- m6 @, K' E: 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.
# x6 ~/ O+ ]) i2 B! A" Z# k  Loads are processed by each operator for the following time:
8 J' j0 P7 n1 k3 z  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.1 L' i' f* F) G! o  K+ w: 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.
% x  T* Q; h9 M9 ^& y. f7 V  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.9 g7 D1 ?' g/ w5 ~5 e( l* h
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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问题:
0 ]/ L7 M/ }! E0 L4 gAfter 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
7 u7 l- t# g( |; g! |move into Q_wait /*Capacity is infinte*/9 J; E5 N. b9 t- r. H
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
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7 Z$ J( a& C, T! h& Y' m1 oP_B and P_C is similar3 Y5 m- r* n9 W/ K$ y
triangular 30,60,90 min2 e7 Y& S! G+ S
u 60,30 min9 R$ Q6 M1 b& \/ y" b: D; M

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: S) G3 Y$ \. x3 D2 Tin P_C, you need to send to die.2 m3 _! }3 V" L& r
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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.- v! @; h5 G- F" l* |$ R

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' M# I5 U- A  ^* U2 f+ RRemember 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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