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Microgroove formation in surface ridges in impact elliptical EHL contacts
Author(s) -
Kaneta M.,
Guo F.,
Wang J.,
Krupka I.,
Hartl M.
Publication year - 2014
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.1250
Subject(s) - isothermal process , materials science , surface (topology) , newtonian fluid , mechanics , composite material , geology , geometry , thermodynamics , physics , mathematics
The microgrooves are formed in the surface ridges by local pressure increases caused by impact loading in elliptical elastohydrodynamic contacts. It has been elucidated through isothermal Newtonian numerical analyses that the depth and the distribution of microgrooves are influenced by the height, shape and orientation of the ridges, the initial impact gap, the maximum load and time being exposed to the maximum load. The formation of the microgrooves induced by local high pressures will influence the surface failure of machine elements. Copyright © 2014 John Wiley & Sons, Ltd.