THE STEADY-STATE RESPONSE OF A SHIP HULL TO A SIMPLE HARMONIC DRIVING FORCE COMPUTED BY A DIGITAL PROCESS,

Abstract

A numerical method of finding the steady-state response of the hull of a ship to a sinusoidal driving force is described. Results of calculations for the vertical flexural vibrations of the USS NIAGARA (APA87) in response to a vertical driving force applied in the plane of the propeller are given and are compared with experimental data. It is also shown that the vibration of the hull at a frequency other than one of the natural-mode frequencies may be calculated as the sum of the vibrations of the natural modes compounded by a normalization process. In the Appendix a brief set of instructions is given which may be used for the computation of forced vibration. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1950
Accession Number
AD0609631

Entities

People

  • Emily J. Adams

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Computations
  • Doppler Effect
  • Experimental Data
  • Frequency
  • Frequency Shift
  • Instructions
  • Propellers
  • Ship Hulls
  • Steady State
  • Vibration

Fields of Study

  • Engineering
  • Mathematics

Readers

  • Naval Architecture and Marine Engineering.
  • Structural Dynamics.