A Coupled Hydrodynamic/Structural Model for Ship/Ramp/Barge Interface

Abstract

A mathematical model describing the fundamental dynamics in the interface problem between a ship, a barge, and a connecting ramp is developed and solved. The hydrodynamics for the ship and the barge are described by a 12-degree of freedom fully coupled model, which is based on potential theory and incorporates proximity effects. Ramp structural dynamics are studied by a finite element model, which has been calibrated based on detailed studies of commercially available codes. The models were coupled together through a spring/damper and the solution of the system was obtained in both regular waves and a representative sea state. Parametric studies with regards to different coupling conditions indicate that optimization based on either relative motions or ramp maximum stress is possible.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2001
Accession Number
ADA401389

Entities

People

  • Antonios Dalakos

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Computational Fluid Dynamics
  • Computational Science
  • Engineering
  • Equations
  • Equations Of Motion
  • Frequency Domain
  • Geometry
  • Hydrodynamics
  • Integral Equations
  • Mathematical Models
  • Mechanics
  • Modulus Of Elasticity
  • Naval Architecture
  • Relative Motion
  • Resonant Frequency
  • Three Dimensional
  • Two Dimensional

Readers

  • Computational Modeling and Simulation
  • Control Systems Engineering.
  • Naval Architecture and Marine Engineering.