Accession Number:

ADA242709

Title:

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

Descriptive Note:

Technical memo,

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CENTER

Report Date:

1991-01-01

Pagination or Media Count:

9.0

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.

Subject Categories:

  • Numerical Mathematics
  • Computer Programming and Software
  • Machinery and Tools

Distribution Statement:

APPROVED FOR PUBLIC RELEASE