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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,
* `* \3 B6 Q2 Q, @  k( D$ }5 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.
& p' u- x" x+ r! ~/ L) A; F  Loads are processed by each operator for the following time:
# q. X' L+ I+ m+ F! g+ M5 D7 J& |5 w( ?" p  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.1 K- d& p1 y. e' 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.
* t3 s2 @6 e  X4 Q2 S: a  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
* ]2 T/ x; ^: G2 BSend 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.
  F1 f, h5 f6 X' K5 X
' V9 c9 m1 `. }, x- ]问题:
6 w/ R! u  R8 DAfter running the model for 10,000 days, what was the average number of loads in each process?
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- j, q7 [& P7 H! i不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
, D) D# m8 _, A5 u: L# ymove into Q_wait /*Capacity is infinte*/
4 n) U! u0 X( b9 smove into Q_process /*Single capacity*/7 K4 C2 |0 Q, E; U3 {% ?; S

. f3 ]2 A4 Y; }# t) k8 w9 _" }use R_A for n 60,10 min /*Resource A*/! ?+ N; u& k  z* q4 z5 O' u+ r  W

9 d0 T; S+ w( W( n7 u% ~send to P_B* u- f& }) @6 t) ]5 l" @
end& ^9 b3 w. p2 V: B
; m3 i8 t& Z9 J4 N% g0 ^6 A
P_B and P_C is similar
+ B& L9 _8 |+ A" |! t6 Striangular 30,60,90 min
& Q9 u4 H& R% u  Hu 60,30 min+ {: `7 c$ c& b
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9 }9 A+ \1 I- p
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." L3 b  ^$ T2 Z

! E& R$ \" `. L# P  P( J2 ^2 O3 O$ [( ]6 u8 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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