Design and Initial Operation of a 3-Degree of Freedom Magnus Rotor in a Magnetic Balance System

Abstract

Progress is reported on an experimental program to determine the magnus forces on the center of gravity and the rotational startup response of a self-spinning rotor in a subsonic air stream. Development of a new type of model for the magnetic balance system was required in order to provide rotational freedom about all three axes. The design, construction and initial testing of this model at low subsonic speeds are discussed. The results indicate that models with three degrees of rotational freedom can be suspended with the magnetic balance system and tested in a subsonic air stream. Because of the force limits of the present balance system, the maximum operating dynamic pressure for this model is low.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1973
Accession Number
AD0755108

Entities

People

  • Charles W. Haldeman
  • James B. Coffin

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Angular Motion
  • Bearings
  • High Pressure
  • Jewel Bearings
  • Magnetic Cores
  • Magnetic Fields
  • Magnetic Materials
  • Massachusetts
  • Materials
  • New Jersey
  • Physics
  • Physics Laboratories
  • Precession
  • Rotation
  • Subsonic Wind Tunnels
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Fluid Dynamics.
  • Military and Counterinsurgency Studies.