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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,# ^$ w  s8 a7 @; G2 }
  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.
$ t, y6 n. O; {$ j3 V( f( ?+ X  Loads are processed by each operator for the following time:
# m6 k: R# S# j7 n* b  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
  F- m% ~/ [& {4 e6 y: A. N7 `  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/ D7 h# @* ]3 k5 ^3 B
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.: w" B% m$ w( D, J% i$ p
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.5 s! L: p" r: Z4 g) d2 u: I) \

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After running the model for 10,000 days, what was the average number of loads in each process?% l0 P, p; C% y& Q
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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
, J7 X$ V, e: p6 l) l  smove into Q_wait /*Capacity is infinte*/
0 Y# s$ l1 M7 a# K, C9 |* Z$ K8 C9 Cmove into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/: t9 L3 i" s5 s# k
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send to P_B, R5 R$ j1 T3 e
end
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  D6 c: f7 p; }3 VP_B and P_C is similar
& U) A2 m& }' [triangular 30,60,90 min
( @$ d5 g2 o9 {& X0 D) B. U* Pu 60,30 min
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in P_C, you need to send to die.
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+ `: r- ^* R1 w; P8 t5 i1 CThen 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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