Investigation of Gear and Bearing Fatigue Damage Using Debris Particle Distributions

Abstract

A diagnostic tool was developed for detecting fatigue damage to spur gears, spiral bevel gears, and rolling element bearings. This diagnostic tool was developed and evaluated experimentally by collecting oil debris data from fatigue tests performed in the NASA Glenn Spur Gear Fatigue Rig, Spiral Bevel Gear Test Facility, and the 500 hp Helicopter Transmission Test Stand. During each test, data from an on-line, in-line, inductance type oil debris sensor was monitored and recorded for the occurrence of pitting damage. Results indicate oil debris alone cannot discriminate between bearing and gear fatigue damage.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2004
Accession Number
ADA426760

Entities

People

  • David G. Lewicki
  • Harry J. Decker
  • Paula J. Dempsey

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Ball Bearings
  • Bearings
  • Detection
  • Detectors
  • Experimental Data
  • False Alarms
  • Fatigue Tests (Mechanics)
  • Gears
  • Helicopters
  • Military Research
  • Particle Size
  • Space Sciences
  • Spiral Bevel Gears
  • Test Facilities
  • Test Stands
  • Warning Systems

Readers

  • Structural Health Monitoring of Composite Structures.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).