THE EXCITING FORCES AND WETTING OF SHIPS IN WAVES

Abstract

General formulas are established for the exciting forces and moments acting on a ship in arbitrary waves. It is shown that for the diffraction of waves due to isolated singularities, such as sources, dipoles, pressure points, etc., the exciting forces and moments depend only on the ship's radiation functions, which characterize the wave radiati n in a heavy fluid due to forced oscillations of the ship with unit velocity amplitude in calm water. In the case of diffraction of regular progressive wave systems, it is shown that the exciting force and moments, the damping coefficients, and the estimated wetting of ships in waves can all be expressed in terms of the asymptotic characteristics of the radiation functions. The general results obtained are employed to calculate the exciting forces and moments in specific examples. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1962
Accession Number
AD0288661

Entities

People

  • J.n. Newman
  • M.d. Haskind

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Amplitude
  • Coefficients
  • Diffraction
  • Motion
  • Oscillation
  • Radiation
  • Translations

Fields of Study

  • Engineering

Readers

  • Marine Hydrodynamics
  • Plasma Physics / Magnetohydrodynamics
  • Statistical inference.