How to Determine Spiral Bevel Gear Tooth Geometry for Finite Element Analysis

Abstract

An analytical method has been developed to determine gear tooth surface coordinates of face milled spiral bevel gears. The method combines the basic gear design parameters with the kinematical aspects for spiral bevel gear manufacturing. A computer program was developed to calculate the surface coordinates. From this data a three dimensional model for finite element analysis can be determined. Development of the modeling method and an example case are presented. Spiral bevel gears are currently used in all helicopter power transmission systems. This type of gear is required to turn the corner from a horizontal engine to the vertical rotor shaft. These gears carry large loads and operate at high rotational speeds. Recent research has focused on understanding many aspects of spiral bevel gear operation, including gear geometry, gear dynamics, lubrication, stress analysis and measurement, misalignment, and coordinate measurements, as well as other areas.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1991
Accession Number
ADA242709

Entities

People

  • Faydor L. Litvin
  • Robert F. Handschuh

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Army Aviation
  • Computer Programs
  • Computers
  • Finite Element Analysis
  • Geometry
  • Helicopters
  • Japan
  • Machine Tools
  • Manufacturing
  • Measurement
  • Mechanical Engineering
  • Spiral Bevel Gears
  • Teeth
  • Test Facilities
  • Three Dimensional
  • Turbines

Readers

  • Aerospace Engineering
  • Battery Technology and Engineering
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)