Spajanje Brodskog Vijka Sa Vratilom.docx

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SPAJANJE BRODSKOG VIJKA S VRATILOM Najniži tlak dodirni površina na 35°C

HRB, Pravila za klasifikaciju brodova dio 7(2013), izraz 2.8.9 2 Fv   S T   2 p35  p     S     B     , usporediti s IACS UR K3(Corr, 2008), A B   T   

Fv 

2C  M , DSR

 Fx   ,

B   2  S 2  2 ,

FR  Fv2  Ft 2

T  Ft  cos  p  A  sin    T  Ft  p  A   

Uvjet klizanja: FR  Fv2  Ft 2 

 S

 p A

 : cos  1;sin    =>

Ft 2  (T  p  A  ) 2

=>

Ft 2 

2 s

2

 p 2  A2  Fv2

(u smjeru FR ) Izjednačavanjem:

2 s

2

A2 p 2  Fv2  T 2  2 pAT  p 2 A2 2  

 2 2 2 2  2     pA  2T pA   Fv  T    s  Fv2   pA   pA  2 B  2 T  S  T 1       2   S   S   T  2

Rješavanjem po

pA : S

 pA     S 1,2

 F2  2T S  4T 2 2 S 2  4 BT 2 1  v2   T  ,  2B

 pA      S 2

2

F T S  T  S  B  B    pA  T  ;    B  S 1 2

p

2

2 F  ST    S   2  B  v   AB   T   

B  S 2 2   2

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