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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,
1 A  G3 G/ _, V  b& Y7 x7 U( 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.
, f+ O! K2 Z9 x5 b2 w  Loads are processed by each operator for the following time:
* ^: F7 b9 L4 S' O% R- E. [/ X  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.* j: W: {/ r: ?
  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.1 Q9 |2 b2 b: R  ?
  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.
) @0 x- z* f0 h# N3 z, 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.
6 w8 S! Q' e& ?8 ?
* o& _/ u1 r+ V% J8 T. F问题:$ P9 t1 e$ I3 V' U
After running the model for 10,000 days, what was the average number of loads in each process?* V8 X# ~# x* U5 I

! j' K  i6 n$ ~不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
- _4 H* k2 X6 I+ T1 n4 |& T& lmove into Q_wait /*Capacity is infinte*/
+ A5 A5 d7 q" V( f7 k0 Cmove into Q_process /*Single capacity*/* Y1 ?9 R+ k; S8 m3 i6 `
" a% t2 h5 a/ x; I: O# B
use R_A for n 60,10 min /*Resource A*/
" l1 H" v+ Q! g" F
3 D! M, F. M% ]2 X; m1 B2 Nsend to P_B
4 r7 |0 t6 x& j5 H5 {4 \end3 Z7 h6 L/ j& f5 P* N
  k' J8 ?, }/ K# L) c
P_B and P_C is similar
. @( |' c' E, {; v$ mtriangular 30,60,90 min
# v. R) B5 ?+ E; q  xu 60,30 min: N! z8 T6 V8 G: t* F7 d9 }. M% y: }

8 B4 f  c. P: d' b1 P
* \+ h, a4 o; ^# [; lin P_C, you need to send to die.; b% M7 x; {! n- ]' R5 F

: ~, E' o! c( |+ tThen You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.
2 T& a) N: N8 f( |5 d  f- {
9 w- S+ o$ `% i8 _
3 M0 k" Q4 ]6 N* r4 b( Z  Q1 f  GRemember 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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