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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,
% Q+ ?8 u& L; e5 P" N  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.$ W- u) _3 K- O; Z0 m
  Loads are processed by each operator for the following time:
8 ^$ f+ `- C; [( w6 v; l  Worker_A does the job in a normally distributed time with a mean of 60 mins and a standard dev of 10 mins.
! j5 S( D/ _" s/ u3 u5 c5 V  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.
/ G! z" _1 n9 r0 A  Worker_C does the job in a uniformly distributed time between 30 and 90 mins.: m4 T' B% n; l! t+ ?$ L* t% p
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.8 T1 Q* f$ K+ q+ _' p$ Y, @. E

6 k+ x4 f, D; t+ Q2 [6 {* t# k问题:
4 W. _2 ~- B. C; I- `. ^After running the model for 10,000 days, what was the average number of loads in each process?
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不胜感激!
发表于 2009-10-6 22:36:13 | 显示全部楼层
begin P_A arriving
* m) ^! d( A4 W' m3 r  n) |8 \move into Q_wait /*Capacity is infinte*/
1 X- Y$ K% t  @* R# B& i1 {move into Q_process /*Single capacity*/
  P  ?1 h0 x" m1 X6 C! z# V/ e- D2 E
  ?- w; Q% I: u& e8 w- F" ?* Huse R_A for n 60,10 min /*Resource A*/4 v$ Z2 l  L4 T  p$ g: \

3 h5 w) X8 w% m% T) B( Jsend to P_B
4 \2 Q' K; m2 B6 wend
; J; s- J, ]' ]$ T" C% v1 z; D9 S' a4 d
P_B and P_C is similar
. k8 x: p8 t6 k, ]' q% j6 ctriangular 30,60,90 min
4 A, z/ O# w* r/ tu 60,30 min+ J8 m1 n1 X' S) I% a1 I
; k  ?6 @+ J/ b+ }6 N
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in P_C, you need to send to die.
2 T4 k( A7 B1 [  u# ]: J- d8 t# K) U' l( i6 w$ x# r! G
Then You need to add a L_Control to drive up the whole simulation. and a Run Control of 10000 days.) {/ }/ {  z! z; }# @6 w! p. O9 k! f

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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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