Influence of Tooth Profile Modification on Spur Gear Dynamic Tooth Strain.

Abstract

This paper presents results of dynamic strain gage measurements performed on the NASA gear-noise rig. The experiments were part of a joint research program between NASA and the U.S. Army Research Laboratory to advance the technology of rotorcraft transmissions. Tests were performed on six sets of low contact ratio spur gears with different tooth profile modifications. Results presented include static and dynamic measurements of gear tooth strain taken over a matrix of operating conditions. The results demonstrate that a well-designed tooth profile modification can significantly reduce dynamic loads in spur gears, especially for gears which operate at high speed and under high torque. The two parabolic modifications tested were not as effective as linear modifications, possibly because the modification zone was too long. (MM)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1995
Accession Number
ADA298641

Entities

People

  • Dennis P. Townsend
  • Fred B. Oswald

Organizations

  • Glenn Research Center

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Dynamic Loads
  • Gages
  • Gear Noise
  • Gear Teeth
  • Gears
  • Joints
  • Manufacturing
  • Measurement
  • Military Research
  • Rotary Wing Aircraft
  • Signal Processing
  • Standards
  • Strain Gages
  • Teeth
  • Time Domain
  • Turbines

Readers

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