Investigation of Electric and Wear Phenomena of Liquid Metal Wetted Copper Fiber Brushes Under Conditions of High Slip Ring Eccentricity.

Abstract

Metallic fiber brushes wetted with a liquid metal could potentially provide a current collector for large scale homopolar machinery. This study investigates brushes composed of copper fibers swaged together at one end and wetted with the liquid metal, Nak78. The brushes are forced to carry current while an eccentric slip ring compresses and releases the fibers, modeling the effect of rotor runout in a full scale collector. Preliminary studies indicate that these brushes are not transferring noise free steady current nor maintaining low levels of wear.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1984
Accession Number
ADA147634

Entities

People

  • David W Taylor
  • N. Sondergaard
  • P. Reilly

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acquisition
  • Classification
  • Current Density
  • Data Acquisition
  • Diameters
  • Eccentricity
  • Elements
  • Engineering
  • Fourier Analysis
  • Geometry
  • Instrumentation
  • Liquid Metals
  • Materials
  • Mathematics
  • Measurement
  • Metals
  • Slip Rings

Readers

  • Combustion and Flow Dynamics.
  • Surface Engineering/Surface Coating Technology.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).