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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,
) P  y7 ?* W" w  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.
, i# w' z+ i0 ]1 t  Loads are processed by each operator for the following time:! V! i6 p1 K3 D& P: V) Q5 R9 s
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
, I! p) _2 @: k. S  I: ?2 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.
+ w7 b' i& ]+ }/ t! ]  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
7 Q1 z! x/ }5 S! ySend 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 t( H$ ^9 ^) u
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问题:' A8 `: H2 I: Q1 I
After running the model for 10,000 days, what was the average number of loads in each process?6 Z0 o4 O+ y! B" j
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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
% U6 r) G2 g& J) \+ V1 vmove into Q_wait /*Capacity is infinte*/* @# {# u- B: K8 s, B; L' B0 k
move into Q_process /*Single capacity*/
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; F# ~' m% `) i0 euse R_A for n 60,10 min /*Resource A*/; g0 C& g3 r7 m- _# Q
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send to P_B
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P_B and P_C is similar
  O- o0 Z/ G- b9 \& Y5 x  mtriangular 30,60,90 min8 a9 V" k  J1 h$ q8 t
u 60,30 min
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. Q/ g2 @/ X) ]+ _- \) m' ?. Ain P_C, you need to send to die.. O6 A! B9 b# t* T

2 Y7 O* D# T4 J: Y* p/ `+ PThen 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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