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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,
5 g& X7 Z# t9 ?: u0 c$ ]  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.% u; |0 Z# Y! }* o
  Loads are processed by each operator for the following time:% {8 |3 ^' h9 M% b, {- a
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.! r3 p- x5 C. d4 T
  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.
% L# ?& p3 j; M- c  }  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.8 o# U# s3 o7 q) }) V9 v& ?# Q/ x
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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3 l* W9 P& B8 a/ q7 V$ H7 T0 U问题:2 h, F& b2 h, k
After 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* _* i) a9 Q) b, k
move into Q_wait /*Capacity is infinte*/* \& O: V* J) t, v+ u0 o
move into Q_process /*Single capacity*/6 S' P' F0 v; I0 x$ G

6 E) s6 L% ~6 muse R_A for n 60,10 min /*Resource A*// I/ |+ e! W( Y3 B% t1 T7 g

# h$ a' ]' v2 d' K/ ^$ K1 Dsend to P_B
* S, M- c5 I/ ~2 T: {8 c' n6 b8 m, Fend
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P_B and P_C is similar
" S; y; G! c8 [' Btriangular 30,60,90 min4 b1 V8 K2 K! m) E6 ~# t# _
u 60,30 min# d9 P. I0 F. K
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) K4 b0 i  u, Y' `in P_C, you need to send to die.
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1 W5 ^% O' e; W7 d& }* h& xThen 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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