Effect of Metacentric Height on Roll Damping

Abstract

Experiments were conducted on a floating circular cylinder to determine the effect on roll damping of changes in transverse metacentric height GM. The relationship between log decrement (delta) and GM is defined, both graphically and by means of an empirical equation which shows that delta varies inversely as the square root of GM. In addition, the total energy lost per cycle and the energy losses due to wavemaking are discussed.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1969
Accession Number
AD0699520

Entities

People

  • Alvin Gersten

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplitude
  • Applied Mechanics
  • Center Of Gravity
  • Diameters
  • Energy
  • Equations
  • Extinction
  • Gravity
  • Inertia
  • Mass
  • Measurement
  • Metacentric Height
  • Model Basins
  • Model Tests
  • Moment Of Inertia
  • Square Roots
  • Surface Tension

Readers

  • Marine Hydrodynamics
  • Materials Science (Mechanical Engineering).
  • Mechanical Engineering/Mechanics of Materials.