Comparison of Theoretical and Experimental Response a Single-Mode Elastic System in Hydrodynamic Impact

Abstract

Hydrodynamic impact tests were made on an elastic model approximating a two-mass-spring system which had a ratio of sprung mass to hull mass of 0.6 and a natural frequency of 3.0 cycles per second. Tests were made at two combinations of trim and flight-path angles and for a range of flight-path velocity. Comparison of the experimental results with results obtained from the theory of NACA-TN-1398 showed good agreement.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1951
Accession Number
ADA381973

Entities

People

  • Kenneth F. Merten
  • Robert W. Miller

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Accelerometers
  • Aeronautical Laboratories
  • Aircrafts
  • Center Of Gravity
  • Drop Tests
  • Experimental Data
  • Flight
  • Flight Paths
  • Frequency
  • Impact Acceleration
  • Impact Loads
  • Impact Tests
  • Landing Impact
  • Resonant Frequency
  • Structural Response
  • Trim Angle
  • Wing Tips

Fields of Study

  • Physics

Readers

  • Marine Hydrodynamics
  • Structural Dynamics.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster