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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,
% {3 y# m; [/ h' z4 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.4 s% m2 l! `4 E) N: [- I
  Loads are processed by each operator for the following time:
- R- u7 C8 A/ @  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins., I$ _" L! w: p9 n
  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.6 J* k6 N( j8 D2 c
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
/ |0 \+ ?! w, e. B* XSend 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.) Y% M- T: s1 n# s/ H
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问题:* j$ K9 _/ G! E- x/ E
After running the model for 10,000 days, what was the average number of loads in each process?5 I; G/ Y8 G1 n

2 h% c4 p& _, H! V' N- `不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving& I5 p% w" ]. q1 C1 w2 Y: ?; l' V
move into Q_wait /*Capacity is infinte*/
; a1 v0 f' J/ l! Qmove into Q_process /*Single capacity*/) ?& ^& ?8 U. W' p6 }; D
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use R_A for n 60,10 min /*Resource A*/
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- M1 }* o- q3 L& ~7 r( k8 ?& j1 a# Fsend to P_B5 M# U: ^" V+ ~: E4 ^) p3 {* [' i
end
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P_B and P_C is similar( @* o# I# h7 j9 i3 {6 ^
triangular 30,60,90 min
# ^. \. R- I7 T0 Su 60,30 min: A# C) e5 Y  m8 a

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in P_C, you need to send to die.- [# y3 k: G- v- v
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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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