A common way of driving the camshafts of an internal combustion engine is by synchronous belt. One of the major drawbacks is their limited durability. Several failure modes may appear. This paper considers land area wear failures. The area between two teeth on a synchronous belt is called the land area. Most of the semicircular belt profiles, used in automotive cambelt drives today, have a small backlash, i.e. the pulley groove is a little wider than the belt tooth. This allows for a relative motion between belt and pulley teeth. In a cambelt drive, in which torques are oscillating, this is the case. The movement causes wear to the land area that eventually will lead to breakage of the facing fabric, forcing the belt-pulley contact to run on the belt cord which will quickly lead to belt failure. This paper describes a method to detect the wear of land areas of synchronous belts. From surface topology measurements of the land areas at different wear stages, well-known roughness parameters are used to determine the degree of wear. The roughness parameters variations are explained by a physical wear procedure. In addition to this formerly known land area wear originating from complete meshing, another wear mechanism was discovered present near the tooth roots. The newly discovered land area wear type can be explained by seating and unseating effects.
Skip Nav Destination
ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
September 2–6, 2003
Chicago, Illinois, USA
Conference Sponsors:
- Design Engineering Division and Computers and Information in Engineering Division
ISBN:
0-7918-3702-5
PROCEEDINGS PAPER
Detection of Land Area Wear in Automotive Synchronous Belts
Tomas Johannesson
Tomas Johannesson
Volvo Car Corporation, Go¨teborg, Sweden
Search for other works by this author on:
Tomas Johannesson
Volvo Car Corporation, Go¨teborg, Sweden
Paper No:
DETC2003/PTG-48021, pp. 163-169; 7 pages
Published Online:
June 23, 2008
Citation
Johannesson, T. "Detection of Land Area Wear in Automotive Synchronous Belts." Proceedings of the ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 4: 9th International Power Transmission and Gearing Conference, Parts A and B. Chicago, Illinois, USA. September 2–6, 2003. pp. 163-169. ASME. https://doi.org/10.1115/DETC2003/PTG-48021
Download citation file:
6
Views
Related Proceedings Papers
Related Articles
Designing Synchronous Belt Transmissions With Variable Velocity Ratio
J. Mech. Des (January,2008)
A Note on the Shear Influence on Belt Drive Mechanics
J. Mech. Des (February,2008)
Related Chapters
Computer Aided Machine Design
Computer Aided Design and Manufacturing
Introduction and Definitions
Handbook on Stiffness & Damping in Mechanical Design
Surface Analysis and Tools
Tribology of Mechanical Systems: A Guide to Present and Future Technologies