NUMERICAL DETERMINATION OF THE ENTRAINED WATER IN SHIP VIBRATIONS

The hydrodynamic mass matrix for a vibrating ship is evaluated using a three-dimensional finite element discretization of the surrounding water. For the important case of vertical vibrations of the ship, values of the added masses obtained in this way are compared with those given by the conventional semi-empirical formulas currently in use in the shipbuilding industry. A numerical example is presented. It is concluded that conventional two-dimensional methods do not apply to higher modes, for which significant deformation of the cross section may occur.

  • Corporate Authors:

    Wiley (John) & Sons, Limited

    Baffins Lane
    Chichester, Sussex  England 
  • Authors:
    • Orsero, P
    • Armand, J L
  • Publication Date: 1978

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00190080
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Apr 25 1979 12:00AM