LONGITUDINAL BLADE-FREQUENCY FORCE INDUCED BY A PROPELLER ON A PROLATE SPHEROID

Abstract

An expression was developed for the longitudinal component of the vibratory force exerted on a prolate spheroid by the operation of a marine propeller in a space-varying field (wake). Two evaluation schemes were considered: one by integration of the pressure signal over the surface of the ellipsoid and the other by means of Lagally's theorem with the ellipsoid represented by a known source-sink distribution. Numerical calculations indicate the important role played by propeller clearance and slenderness ratio in the magnitude of the vibratory force.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1963
Accession Number
AD0406195

Entities

People

  • J. P. Breslin
  • S. Tsakonas

Organizations

  • Stevens Institute of Technology

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Bodies
  • Engineering
  • Engineers
  • Flow
  • Frequency
  • Hydrodynamics
  • Marine Engineering
  • Marine Propellers
  • Mechanics
  • Military Research
  • Naval Architecture
  • Navy
  • New York
  • Propellers
  • Ship Design
  • Shipbuilding
  • Two Dimensional

Readers

  • Aerodynamics.
  • Fluid Dynamics.

Technology Areas

  • Space