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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 O& q  ?! E( D+ r  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.) @" K' K7 e1 W2 u: g  ^
  Loads are processed by each operator for the following time:' C4 q, H! {4 a
  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
0 ~4 v  t/ Q# c* k& C  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.$ u- z4 d& L) W6 U
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
& R' Z- v" c0 g, L/ mSend 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.7 [' g1 L$ y4 ?: P6 r. H; t% r

6 W' q# g$ M" u. x7 M2 E, k问题:
7 R# u: A6 h; J+ W' J0 qAfter running the model for 10,000 days, what was the average number of loads in each process?7 e7 @; w( G# K

# t( t% c% V$ }$ R) c3 a不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
  [. [3 Q! l: Smove into Q_wait /*Capacity is infinte*/5 `% t# T9 H$ Z3 d. X
move into Q_process /*Single capacity*/5 C& p. h+ a  n% e* c" J

0 B2 B' C# Y7 D. y5 y4 F, Uuse R_A for n 60,10 min /*Resource A*/  v" V# p$ m  ~  R  M; t8 _

; b4 L! A8 B- Y  f# z8 m/ Msend to P_B
- c) v# b# B2 i: c  qend- Q9 H3 V5 z, f8 c8 K( O
; ]- E  C1 h% W1 [% u2 `
P_B and P_C is similar5 L9 p; {7 A. w' t5 s9 [. y
triangular 30,60,90 min3 Y' x% v: }% M9 ]: r
u 60,30 min
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! t% {0 b2 z6 y: S3 k2 y% Y. E
in P_C, you need to send to die.
) G9 @5 u( ]) w/ f' j; h, @# l
% z0 f$ b4 y7 T* \# v6 v, fThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
) j2 S9 R8 `+ T5 k0 V, [3 _1 j" |1 d: Y) ?& P

" m) |6 I7 O3 cRemember 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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