Random Wave Analysis of Ship/Ramp/Barge Response

Abstract

A mathematical model describing the fundamental physics of a ship/ramp/barge system, including a passive isolator, is developed. The model properly accounts for hydrodynamic proximity effects and structural coupling between the bodies. A standard second order model is used, for demonstration purposes, in order to model the frequency response properties of the connecting body. Parametric studies of the response amplitude operator of the ramp motion are performed for varying wave directions and isolator stiffness and damping. These are utilized for the random wave analysis in standard fully developed seas. The results indicate that rational selection of isolator properties can result in significant reduction of motions and stress levels in the connecting ramp.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2000
Accession Number
ADA384865

Entities

People

  • Dimitrios S. Konstantinou

Organizations

  • Naval Postgraduate School

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Engineering
  • Equations
  • Equations Of Motion
  • Floating Bodies
  • Frequency
  • Frequency Domain
  • Frequency Response
  • Mechanical Engineering
  • Naval Architecture
  • Resonant Frequency
  • Ship Motion
  • Standards
  • Statistics
  • Stiffness
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.