Added Mass and Damping of the Heaving Surface Effect Ship in Uniform Translation.

Abstract

The analysis presents a practical method for evaluating the added mass and damping coefficients of a heaving surface effect ship in uniform translation. The theoretical added mass and damping coefficients and the heave response show fair agreement with the corresponding experimental values. Comparisons of the coupled aero-hydrodynamic and uncoupled analytical results with the experimental data prove that the uncoupled theory, dominant for a long time, that neglects the free surface effects is an over simplified procedure. The analysis also provides means of estimating the wave elevation of the free surface, escape area at the stern and the volume which are induced by a heaving surface-effect ship in uniform translation in otherwise calm water. Computational procedures have been programmed in FORTRAN IV language and adapted to the PDP-10 high-speed digital computer. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1978
Accession Number
ADA070886

Entities

People

  • C. H. Kim
  • S. Tsakonas

Organizations

  • Stevens Institute of Technology

Tags

Communities of Interest

  • C4I
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Amplitude
  • Computational Fluid Dynamics
  • Computational Science
  • Differential Equations
  • Equations
  • Frequency
  • Froude Number
  • Language
  • Measurement
  • Mechanical Properties
  • Pressure Distribution
  • Ships
  • Surface Effect Ships
  • Test And Evaluation
  • Transient Response Analysis
  • Translations
  • Waves

Readers

  • Control Systems Engineering.
  • Marine Hydrodynamics