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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,
! Y0 U1 k3 @9 K% T, ?  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.
: ?5 V3 ~( {& j; v# W* V! W  Loads are processed by each operator for the following time:
2 \2 M4 d0 ~. E: l  ~- M- @  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
% k+ E2 {- F! @+ |9 p  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.
; N& P5 h3 s( K) F+ _  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
. `/ E* h- T/ f" f, m+ wSend 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% d: v  y( t
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问题:
& `1 z6 _7 o8 n2 a3 L' U4 v: SAfter running the model for 10,000 days, what was the average number of loads in each process?
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1 y7 Y  }1 }# I1 t- F不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
. G3 h. G- I' H5 I5 tmove into Q_wait /*Capacity is infinte*/
! `! x& q7 f: a+ u. v4 s5 zmove into Q_process /*Single capacity*/
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  }8 x! _- q4 z- B2 h& o% ]use R_A for n 60,10 min /*Resource A*/, b' `' j$ f2 D+ S( P
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send to P_B
: Q- k6 ]* s9 u* @" X/ U# c- h% cend! ~' Z& w/ y, B

/ {0 A5 u) [' {* o4 IP_B and P_C is similar
8 Y+ M% g9 d+ s% v$ y$ d' Z: gtriangular 30,60,90 min
8 ~3 F6 s5 l4 _u 60,30 min
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, F8 |2 f& `; l1 @$ S+ Din P_C, you need to send to die.  ]3 }: {  N- @/ I% L5 [: D2 W
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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.+ q( a" d& h7 y+ J2 Q* t. k# R

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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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