New Generation Methods for Spur, Helical, and Spiral-Bevel Gears.

Abstract

Research was directed at finding new methods for generating spur, helical, and spiral-bevel gears that would provide conjugate gear tooth surfaces and localized bearing contact and would reduce kinematic errors (gear noise) caused by gear misalignment. Tooth contact analysis (TCA) computer programs have been developed for these gears. These programs make it possible to simulate gear meshing and bearing contact and to investigate the influence of gear misalignment on kinematic errors. The proposed generation methods can be applied to the spiral-bevel gears by using current machinery and tools, but new tool shapes are needed for the spur and helical gears. Keywords: Machine design, Transmission, Helicopter gears.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1986
Accession Number
ADA178145

Entities

People

  • C. B. Tsay
  • F. L. Litvin
  • J. J. Coy
  • R. F. Handschuh
  • W. J. Tsung

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Army Aviation
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Demographic Cohorts
  • Gear Noise
  • Gear Teeth
  • Gears
  • Grinding Wheels
  • Machine Tools
  • Machines
  • Manufacturing
  • Mechanical Engineering
  • Orientation (Direction)
  • Propulsion Systems
  • Spiral Bevel Gears
  • Tools

Fields of Study

  • Engineering

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).