Dynamic Response of an Elastic Propeller to a Non-Uniform Inflow.

Abstract

An important problem in both naval architecture and aircraft engineering concerns the vibrations and noise generated by the propulsion system. In marine applications, the dominant source of vibrations is the propeller. Due to its response to a spatially and temporally nonuniform velocity field the propeller exerts time-dependent axial and side forces, as well as fluctuating torques and moments upon the hull of a ship. The necessity for minimizing unsteady forces and ship vibration levels, has led to the adoption of propeller blades with a high degree of skew. The dynamic response of these blades may either alleviate or worsen the net forces and couples. This is the reason for the study. (Author Modified Abstract)

Document Details

Document Type
Technical Report
Publication Date
Jun 30, 1972
Accession Number
AD0759027

Entities

People

  • Hideya Tsushima

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Blades
  • Dynamic Response
  • Engineering
  • Marine Engineering
  • Mechanical Engineering
  • Mechatronic Engineering
  • Naval Architecture
  • Propeller Blades
  • Propellers
  • Propulsion Systems
  • Stratified Fluids
  • Vibration

Readers

  • Aerospace Engineering
  • Fluid Mechanics and Fluid Dynamics.
  • Robotics and Automation.