RAHNEJAT, H. ... et al, 2009. A review of some tribo-dynamics phenomena from micro to nano-scale conjunctions. Tribology International, 42 (11-12), pp.1531-1541.
The paper provides some highlights in the developments of theories of lubrication and
contact mechanics from early pioneering works of Reynolds and Hertz to the
establishment of elastohydrodynamic phenomenon by Ertel and Grubin. Some historical
discourse is made on the development of elastohydrodynamic theory in the past 5-6
decades, with particular attention paid to the contact of rolling element bearings. The
steady miniturisation of devices has led to progressively smaller contacts of individual
features with lighter load share and diminishing gaps. The ultra-thin films are supported
by interaction potentials that significantly deviate from bulk continuum behaviour of
lubricating films, with insignificant contributions due to viscous-elastic nature of
contacts. Using the same theme of rolling element contacts, the paper highlights the
action of some of these dominant forces at close range.
This is a PDF file of an unedited manuscript that has been accepted for publication.