Evaluation of Effect of Bow Form on Model Wave-Induced and Whipping Responses

Abstract

Random wave tests were conducted with a model of an aircraft carrier and with the forward bow sections of the carrier model modified in the form of a V. The models were tested in random waves representing various sea states at speeds of 0 and 13.8 knots (full-scale). Tests were conducted in head seas only. Response amplitude operators (RAOs) for wave-induced midship bending moment and pitch angle were derived from spectral analysis. Comparison of the RAOs showed little difference due to change in bow form. The comparison of whipping response for both models showed little difference at zero speed; however, at 13.8 knots, the whipping response for the carrier model increased greatly from the zero speed test while the V-form model showed little difference.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1968
Accession Number
AD0830341

Entities

People

  • Alfred L. Dinsenbacher
  • John N. Andrews

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Aircraft Carriers
  • Amplitude
  • Analog Computers
  • Bending Moments
  • Data Analysis
  • Elastic Properties
  • Engineering
  • Export Controls
  • Frequency
  • Government (Foreign)
  • Marine Engineering
  • Mathematics Laboratories
  • Mechanical Properties
  • Mechanics
  • Model Basins
  • Model Tests
  • Models
  • Numbers
  • Oceans
  • Seaworthiness
  • Ship Model Basins
  • Ships
  • Square Roots
  • Test And Evaluation
  • Waves

Readers

  • Marine Hydrodynamics