Detecting Gear Tooth Fracture in a High Contact Ratio Face Gear Mesh.

Abstract

This paper summarizes the results of a study in which three different vibration diagnostic methods were used to detect gear tooth fracture in a high contact ratio face gear mesh. The NASA spiral bevel gear fatigue test rig was used to produce unseeded fault, natural failures of four face gear specimens. During the fatigue tests, which were run to determine load capacity and primary failure mechanisms for face gears, vibration signals were monitored and recorded for gear diagnostic purposes. Gear tooth bending fatigue and surface pitting were the primary failure modes found in the tests. The damage ranged from partial tooth fracture on a single tooth in one test to heavy wear, severe pitting, and complete tooth fracture of several teeth on another test. Three gear fault detection techniques, FM4, NA4*, and NB4, were applied to the experimental data. (MM)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1995
Accession Number
ADA298645

Entities

People

  • David G. Lewicki
  • Harry J. Decker
  • James J. Zakrajsek
  • Robert F. Handschuh

Organizations

  • Glenn Research Center

Tags

Communities of Interest

  • Air Platforms
  • Biomedical

DTIC Thesaurus Topics

  • Amplitude Modulation
  • Data Analysis
  • Detection
  • Experimental Data
  • Failure Mode And Effect Analysis
  • Fatigue Tests (Mechanics)
  • Frequency
  • Gear Teeth
  • Gears
  • Military Research
  • Monitoring
  • Reliability
  • Rotary Wing Aircraft
  • Safety
  • Spiral Bevel Gears
  • Standards
  • Vehicles

Readers

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