A PROCEDURE FOR THE TRANSVERSE STRENGTH ANALYSIS OF SHIPS UNDER RACKING LOADS

PROCEDURA PER LA VERIFICA DELLA ROBUSTEZZA TRANSVERSALE DELLE NAVI SOGGETTE A RACKING

In this work the "racking" of roll-on roll-off ships is studied, and a simplified procedure is presented for the analysis of the transverse stiffness of said ships. The leading idea consists in the idealization of the structures of such ships as a vertical grillage, which is composed by decks and the transverse framings and undergoes the loads due to rolling motion. The analysis of such grillage leads to the values of the relative shift of the decks, and therefore to the definition of the boundary conditions for the stress analysis of each transverse section. Finally, the analysis of each section is performed in the usual way. Comparison between bending moments calculated by the present method and by a complete 3D Finite Elements analysis is reported, and reliability of the method is discussed.

  • Corporate Authors:

    Registro Italiano Navale

    20 Via Vente Settembre
    Genoa,   Italy 
  • Authors:
    • Fanciullacci, G
    • Pittaluga, A
  • Publication Date: 1978-6

Language

  • Undetermined

Media Info

  • Pagination: 75 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00183178
  • Record Type: Publication
  • Source Agency: Registro Italiano Navale
  • Report/Paper Numbers: Tech Bulletin No. 64
  • Files: TRIS
  • Created Date: Oct 31 1978 12:00AM