Nonlinear Large-Amplitude Low-Frequency Ship Motions,

Abstract

A new nonlinear time-domain method for predicting large amplitude motions for a ship advancing in a seaway has been developed. The seaway is represented by a second-order Stokes wave. A consistent nonlinear theory is derived by assuming that the frequency of encounter is small. Results obtained by computer codes show good agreement with linear theory for small-amplitude waves, whereas large differences are found between the nonlinear method and linear theory for steeper waves. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1982
Accession Number
ADA115135

Entities

People

  • Nils Salvesen

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Center Of Gravity
  • Computational Science
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Engineering
  • Equations
  • Equations Of Motion
  • Frequency
  • Frequency Domain
  • Hulls (Marine)
  • Military Training
  • Ship Motion
  • Three Dimensional
  • Time Domain
  • United States
  • United States Naval Academy

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Marine Hydrodynamics