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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,
% `/ a9 _4 }! j- A% J  p$ b  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) M3 N7 m3 y9 ?( `  o+ t+ f( _  Loads are processed by each operator for the following time:
8 d1 m1 d$ k5 F. K4 {; A# F  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
" _% @2 W5 S8 i  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. K. d! ^2 B1 Z) ]
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.& D% Z, Y+ K  x' x7 _' U% t! j
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.+ x4 G$ k4 n& W0 _

2 l; k( p3 d$ w+ w# T& J问题:
2 d# ?% t0 U& w3 J4 Z4 k# a- sAfter 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
' M% ?3 ?5 \6 o7 u7 Emove into Q_wait /*Capacity is infinte*/
+ d4 G& S3 o  B" i% @move into Q_process /*Single capacity*/0 @0 d" w7 m5 M
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use R_A for n 60,10 min /*Resource A*/
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send to P_B
8 T1 [* I' E7 [# d- E4 Rend! d7 ^  ]. I. b! [. r1 k

3 k! @/ ?9 K+ x5 N! _P_B and P_C is similar
' z% \/ m+ t/ g; e  b! dtriangular 30,60,90 min
( ^8 [  b" T/ i# ~, zu 60,30 min! j) u. j; M0 Q) t$ M

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in P_C, you need to send to die.% A, F! {$ U5 P+ m, c% y

; j! g; B" K( B# M. Z, zThen 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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