SEAKEEPING THEORIES-APPLYING SOME CHOICE

The paper describes the practical application and results of the seakeeping analysis of two ships, a warship and a merchant vessel. The variation of the resulting dynamic shearing forces and bending moments for the coupled heaving and pitching motion of each ship is presented for each hydrodynamic analysis employed. As the computer orientated 2D and 3D singularity distribution methods replace the Lewis-Havelock approach, numerical instability and irregular frequency problems may arise. These difficulties are discussed in depth together with methods of identifying their onset. Forward speed corrections of the hydrodynamic coefficients are made using the Salvesen-Tuck-Faltinsen strip theory.

  • Corporate Authors:

    North East Coast Inst of Engineers & Shipbuilders

    Bolbec Hall, Westgate Road
    Newcastle upon Tyne,   England 
  • Authors:
    • Hearn, G E
    • Donati, E
  • Publication Date: 1980-11-17

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00331989
  • Record Type: Publication
  • Source Agency: Ship Research Institute of Norway
  • Files: TRIS
  • Created Date: Jun 12 1981 12:00AM