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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,
( `0 J  j5 h; Q/ q6 l  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.
. W. |4 q2 K. ^$ `0 g  Loads are processed by each operator for the following time:2 K* m6 W/ O$ {. x% f, a
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
9 Y& p+ h6 @6 e# ]% a. o( l  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.5 S; z0 |: m* ^
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.* p: \2 k! c/ Q" v8 t2 w" w8 c* K
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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* D8 z9 i* ~, E问题:
3 h7 P% d; g+ [: Y) SAfter running the model for 10,000 days, what was the average number of loads in each process?5 f3 d/ l7 }/ o$ x3 a; O& b" E/ L
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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
" T# y) Y7 f+ @2 l, g3 I9 Vmove into Q_wait /*Capacity is infinte*/
. s3 B1 A* l8 K# s  D& Imove into Q_process /*Single capacity*/
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+ f! ~. X2 t( uuse R_A for n 60,10 min /*Resource A*/1 T% q/ R, N0 g# h
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send to P_B  L9 K- x  ]" U
end
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) {3 h" E2 Q% a( w$ ~1 [2 cP_B and P_C is similar4 _+ L& K# W  G7 w4 \
triangular 30,60,90 min
: ~% A$ @+ f* D; n: du 60,30 min, i5 M4 `" {6 T4 F9 b- b
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in P_C, you need to send to die.
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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.! y- J: v" O, o8 p- d, E( H9 K/ R- z

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1 P+ d- X9 t+ T- p0 `$ [% `' H. |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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