Theoretical Analysis of Hydrodynamic Impact of a Prismatic Float Having Freedom in Trim

Abstract

Equations which include freedom in trim are derived for hydrodynamic impact of a non-chine-immersed, prismatic float forebody having a V-bottom and a transverse step. These equations are an extension of previously published fixed-trim theory, and a method of solution is indicated by which time histories of vertical, horizontal, and angular displacement, velocity, and acceleration can be obtained. Comparisons of specific solutions of the equations with corresponding fixed-trim solutions are presented. The trends and deviations noted are similar to those exhibited by a like comparison of experimental data for free- and fixed-trim impacts.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1952
Accession Number
ADA380732

Entities

People

  • Robert W. Miller

Organizations

  • National Aeronautics and Space Administration

Tags

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Aircrafts
  • Angular Acceleration
  • Angular Motion
  • Aspect Ratio
  • Center Of Gravity
  • Equations
  • Equations Of Motion
  • Experimental Data
  • Flight Paths
  • Flying Boats
  • Molecular Dynamics
  • Seaplane Floats
  • Seaplanes
  • Three Dimensional
  • Transverse
  • Two Dimensional

Readers

  • Control Systems Engineering.
  • Marine Hydrodynamics