Topology of Modified Helical Gears and Tooth Contact Analysis (TCA) program

Abstract

The contents of ths report covers: (i) development of optimal geometry for crowned helical gears; (ii) method for their generation; (iii) tooth contact analysis (TCA) computer programs for the analysis of meshing and bearing contact and guarantee the favorable shape and low level of the transmission errors. Two new methods for generation of the crowned helical pinion surface have been proposed. One is based on application of the tool with a surface of revolution that slightly deviates from a regular cone surface. The tool can be used as a grinding wheel or as a shaver. The other is based on crowning pinion tooth surface with predesigned transmission errors. The pinion tooth surface can be generated by a computer controlled automatic grinding machine. The TCA program simulates the meshing and bearing contract of misaligned gears. The transmission errors are also determined. Keywords: Helical gears; Crowned gears; Gear geometry; Tooth contact analysis.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1989
Accession Number
ADA213170

Entities

People

  • Faydor L. Litvin
  • Jiao Zhang

Organizations

  • University of Illinois at Chicago

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Army Aviation
  • Compilers
  • Computations
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Curvature
  • Cutting Tools
  • Differential Geometry
  • Gear Noise
  • Gear Teeth
  • Geometry
  • Linear Systems
  • Mechanical Engineering
  • Orientation (Direction)
  • Simulations
  • Tools

Fields of Study

  • Engineering

Readers

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