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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,
; \7 [/ M2 v" E  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.
" o7 V+ Y$ h& z7 U) [& N  Loads are processed by each operator for the following time:; V5 O+ t+ m3 J% {7 J
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.$ ~0 A0 q" F1 S
  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.. {9 o$ t6 z7 G; {% [, g5 \
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
, E$ s5 s6 n$ x8 XSend 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.% t! H) v# s" Z& ~8 j: i3 |! e

7 T6 }# ~9 f$ N+ B. o. T2 D# p问题:
! w% Y0 G1 H5 s; E% b7 uAfter running the model for 10,000 days, what was the average number of loads in each process?& o& w+ t  z  B$ x& e: i3 B' T

- m& L) w3 H: ^# G1 z3 \不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
8 |6 n' U, Z3 omove into Q_wait /*Capacity is infinte*/, q6 B4 V2 \, d1 L
move into Q_process /*Single capacity*/, r$ r! e, X0 H! Y3 Q3 o

4 L1 B! k6 J2 ?+ u3 g! s7 @use R_A for n 60,10 min /*Resource A*/
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send to P_B
" `5 V3 G) R4 Qend
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3 T- @7 u2 l! E. ]/ {: @! hP_B and P_C is similar
. B( I( s9 t5 o3 ]8 J% h7 G: r3 wtriangular 30,60,90 min
6 T8 ?' L' Y# @& w5 Nu 60,30 min+ _" w. k% @% I, J

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) `8 J' F* f1 G% T1 J3 \in P_C, you need to send to die.
: y8 p* S# H' f6 g5 v8 o4 G! e+ F$ ^. J6 F! _4 D( B5 [
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days." Q2 p1 l! S* K; k( o# f$ b
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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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