Investigation into the Failure Casue of a Double Acting, Leading Edge Groove, Tilting Pad Thrust Bearing

Abstract

This report describes the results of bench tests simulating operation and failure of a thrust bearing used in a gas turbine engine compressor development test rig. The bearing was a double acting, tilting pad with offset pivot, leading edge groove configuration using an AMS 4928 titanium collar and C18200 copper-chrome alloy pads with a No. 2 babbitt face. The bench tests successfully simulated the bearing failure and demonstrated a materials incompatibility. This was supported by visual examination, scanning electron microscopy and X-ray energy spectroscopy. A comparison of the bench test results to the compressor rig bearing failure is provided to support the report conclusions.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1990
Accession Number
ADA235613

Entities

People

  • Brian K. Peterson

Organizations

  • Wright Laboratory

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Bench Tests
  • Electron Microscopy
  • Failure Mode And Effect Analysis
  • Friction
  • Instrumentation
  • Leading Edges
  • Load Cells
  • Lubricants
  • Materials
  • Research Facilities
  • Scanning Electron Microscopy
  • Spectroscopy
  • Thrust Bearings
  • Titanium
  • Turbines
  • X Ray Spectroscopy
  • X Rays

Fields of Study

  • Engineering

Readers

  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems