Balancing Dynamic Strength of Spur Gears Operated at Extended Center Distance.

Abstract

This paper presents an analytical study on using hob offset to balance the dynamic tooth strength of spur gears operated at a center distance greater than the standard value. This study is an extension of a static study by Mabie and others. The study was limited to the offset values that assure the pinion and gear teeth will neither be undercut nor become pointed. The analysis presented in this paper was performed using DANST-PC, a new version of the NASA gear dynamics code. The operating speed of the transmission influences the amount of hob offset required to equalize the dynamic stresses in the pinion and gear. The optimum hob offset for the pinion was found to vary within a small range as the speed changes. The optimum value is generally greater than the optimum value found by static procedures. For gears that must operate over a wide range of speeds, an average offset value may be used.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1996
Accession Number
ADA318749

Entities

People

  • Chuen-huei Liou
  • Dennis P. Townsend
  • Hsiang H. Lin

Organizations

  • Glenn Research Center

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Computer Programs
  • Computers
  • Cutting Tools
  • Dynamic Loads
  • Dynamic Response
  • Dynamics
  • Engineering
  • Engineers
  • Gear Teeth
  • Gears
  • Mechanical Engineering
  • Military Research
  • Nomenclature
  • Static Loads
  • Teeth
  • Universities

Readers

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