Computerized Generation and Simulation of Meshing and Contact of New Type of Novikov-Wildhaber Helical Gears

Abstract

In this report, we propose a new geometry for low-noise, increased-strength helical gears of the Novikov- Wildhaber type. Contact stresses are reduced as a result of their convex-concave gear tooth surfaces. The gear tooth surfaces are crowned in the profile direction to localize bearing contact and in the longitudinal direction to obtain a parabolic function of transmission errors. Such a function results in the reduction of noise and vibrations. Methods for the generation of the proposed gear tooth surfaces by grinding and hobbing are considered, and a tooth contact analysis (TCA) computer program to simulate meshing and contact is applied. The report also investigates the influence of misalignment on transmission errors and shift of bearing contact. Numerical examples to illustrate the developed approaches are proposed.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2000
Accession Number
ADA384491

Entities

People

  • Faydor L. Litvin
  • Pin-hao Feng
  • Sergei A. Lagutin

Organizations

  • University of Illinois at Chicago

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Computations
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Curvature
  • Databases
  • Demographic Cohorts
  • Gear Teeth
  • Geometry
  • Lead Angle
  • Misalignment
  • Orientation (Direction)
  • Relative Motion
  • Simulations
  • Space Sciences
  • Standards
  • Vibration

Fields of Study

  • Engineering

Readers

  • Computational Fluid Dynamics (CFD)
  • Structural Dynamics.
  • Thermal Physics or Thermal Science.