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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,* B% b! _  f. W0 H# ~( X
  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.3 ]6 T6 D/ U, \( t
  Loads are processed by each operator for the following time:
! [0 D! k% p  v5 }6 V& @8 }  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
2 v/ S# C! u+ P4 E( I* B  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( l5 n2 W, v5 u: B% q  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.7 ?$ ?( t$ D+ F* W- q- p, d
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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问题:
8 Y! k' a% Q, C6 o, X% N  I4 Z$ bAfter 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
( O) p8 p: y7 ?, z, X& Bmove into Q_wait /*Capacity is infinte*/7 ?/ |1 ^, a+ R, O
move into Q_process /*Single capacity*/
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use R_A for n 60,10 min /*Resource A*/$ f/ R+ ~' h  K/ [% S3 u
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send to P_B
. Y# d( q/ ]/ }0 w: Gend
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" B& u# G5 k3 A+ ~/ L/ {P_B and P_C is similar2 C- w# u9 a: Q6 L: l
triangular 30,60,90 min. x) b) L) Z3 g6 i& |+ D
u 60,30 min/ S+ D' }' p0 @- V
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in P_C, you need to send to die.& m1 P. [: R& U6 F, w- n
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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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" s2 ^+ D3 ~; A% s+ lRemember 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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