Finite Element Analysis of Contact Stress in Synchronous Belt Teeth

A synchronous belt with trapezoidal shaped teeth operating on an involuted (undercut) pulley is analyzed for contact stress by a direct finite element approach. The belt-pulley geometry difference is mathematically accounted for during the belt deformation process. Both an idling and loaded automoti...

Full description

Saved in:
Bibliographic Details
Published in:SAE transactions 1985-01, Vol.94, p.758-767
Main Author: Breig, W. F.
Format: Article
Language:English
Subjects:
Applied sciences
Belts, chains, cables. Miscellaneous
Drives
Exact sciences and technology
Mechanical engineering. Machine design
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A synchronous belt with trapezoidal shaped teeth operating on an involuted (undercut) pulley is analyzed for contact stress by a direct finite element approach. The belt-pulley geometry difference is mathematically accounted for during the belt deformation process. Both an idling and loaded automotive camshaft belt are considered. Peak stress is shown to exist in the belt tooth root. Drive parameters, pulley diameter, belt tension and tension difference are varied around application conditions. The degree of pulley undercut is shown to have a significant effect on peak, stress for a loaded belt (9.525 mm pitch, 25.4 mm wide) on an 18–tooth pulley (56.562 mm pitch diameter).
ISSN:0096-736X
2577-1531