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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,
! [; H9 I0 ]2 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 Z* ]4 J3 }. X  Loads are processed by each operator for the following time:
; b! j! t" A1 y" N& _2 V  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
* X/ t6 L. M: w  b% q3 M$ O9 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.0 g- x( `* @/ W7 _
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.' o! E9 o: K2 v! v: d" ]4 ~
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.9 Y8 o2 W7 [: \! p1 S  J7 }

) f1 i  d2 r* `0 c% \# w4 b$ c问题:
! `4 H& @5 P! P$ E  H. `After running the model for 10,000 days, what was the average number of loads in each process?. C+ o2 m6 P+ h, C# w6 r

5 S7 I9 c8 u" d( x! Y# r不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
4 S8 d3 ?5 ~* I+ J5 @) Wmove into Q_wait /*Capacity is infinte*/
+ ^0 T+ p- [  y' d! V8 T6 Tmove into Q_process /*Single capacity*/- B' r& X+ l- e- t

2 Q. V+ ]% A) f$ P1 J2 Fuse R_A for n 60,10 min /*Resource A*/9 i& q8 t, g% L( G

$ |4 V$ U( I" bsend to P_B
9 L! Z( |: ]) fend
# S3 x  s9 l0 |# E3 A1 p' P- e0 v9 X2 O, R9 u' E9 y: K. e8 w- i1 C
P_B and P_C is similar5 X7 \9 u+ j. C
triangular 30,60,90 min
8 o" N& q- j  f1 j  lu 60,30 min. ?+ H% g8 J+ T% G( }
* w  Z9 B7 x1 \( L2 e

9 F- _, g: O* c6 ?3 J9 u) j9 Fin P_C, you need to send to die.: d  c# v2 h! d
3 a+ _2 M1 H4 f
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.4 g$ e8 Y" ?2 c7 o0 q7 B

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, Y8 `% ?# K& w! v, K8 Q4 h1 t7 uRemember 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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