Elastohydrodynamic Lubrication of Multiple Periodic Ridges

The lubrication of rolling contacts in which one surface has a roughness consisting of periodic transverse or longitudinal ridges has been widely investigated, both theoretically, by, for example, Venner, Lubrecht, Greenwood, Snidle and Evans [1–4] and by means of experiments [5–7]. The problem is relevant to the lubrication of machined surfaces which have a strong periodic element of roughness.