Experimental and theoretical studies of scuffing behavior in piston-pin/piston contacts

Citation
C. Zhang et al., Experimental and theoretical studies of scuffing behavior in piston-pin/piston contacts, SCI CHINA A, 44, 2001, pp. 20-26
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Multidisciplinary
Journal title
SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY
ISSN journal
1001-6511 → ACNP
Volume
44
Year of publication
2001
Supplement
S
Pages
20 - 26
Database
ISI
SICI code
1001-6511(200108)44:<20:EATSOS>2.0.ZU;2-5
Abstract
A bench rig was built and used to study the scuffing mechanisms and the eff ects of surface roughness, clearance, and groove on scuffing in piston-pin/ bore contacts for dynamic loads and an oscillatory rotation. The experiment al results show that the deterioration of the surface shear strength by fat igue cracks appears to contribute to the final scuffing, and the effects of the bore surface roughness and groove on the scuffing behavior are more si gnificant than the clearance. A macro-micro approached scuffing model and a criterion for scuffing failure were developed, appearing to be justifiable for the practical design and analysis of piston pin/bore bearings.