Failure Analysis of OH-58 Kiowa Warrior Drive Gear Shafts

Abstract

A 15-hp spare drive gear from a 250-C30/R3 engine on an OH-58 Kiowa Warrior failed in service, causing loss of AC power. The failed gear, all recovered teeth, and the driving pinion were sent to the U.S. Army Research Laboratory for investigation. This investigation focused on determining the mode of failure and any possible metallurgical or manufacturing contribution to this failure. Analysis included optical and scanning electron microscopy, chemical analysis, and measurements of hardness and surface finish.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2006
Accession Number
ADA451464

Entities

People

  • Dan Snoha
  • Scott M. Grendahl
  • Victor Champagne

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Analysis
  • Chemical Composition
  • Electron Microscopes
  • Electron Microscopy
  • Electrons
  • Engineering
  • Failure Analysis
  • Hardness
  • Materials
  • Measurement
  • Microscopy
  • Military Research
  • Residual Stress
  • Scanning
  • Scanning Electron Microscopy
  • Surface Roughness
  • Teeth

Fields of Study

  • Engineering

Readers

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

Technology Areas

  • Microelectronics