. . . "1350-6501" . "41710" . . "229" . "10.1177/1350650114543317" . . "PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY" . . . "[EE79E303D2B8]" . "Reducing the friction of lubricated nonconformal point contacts by transverse shallow micro-grooves"@en . . . "GB - Spojen\u00E9 kr\u00E1lovstv\u00ED Velk\u00E9 Brit\u00E1nie a Severn\u00EDho Irska" . "Elastohydrodynamic lubrication, film thickness, friction, surface texturing, micro-grooves"@en . "RIV/00216305:26210/14:PU111742!RIV15-MSM-26210___" . "Hartl, Martin" . . . "Ali, Fadi" . "Reducing the friction of lubricated nonconformal point contacts by transverse shallow micro-grooves" . . . . "P(GAP101/11/1115), P(LO1202)" . . "K\u0159upka, Ivan" . "RIV/00216305:26210/14:PU111742" . "Reducing the friction of lubricated nonconformal point contacts by transverse shallow micro-grooves" . "9"^^ . "3"^^ . . . "26210" . . "This study focuses on the effects of transverse shallow micro-grooves on the film thickness and friction of nonconformal contacts under relative motion. Experiments were conducted using a ball-on-disc tribometer equipped with high speed camera and torque sensor. The lubricated contact between the steel ball and glass disc represents a nonconformal point contact with elastohydrodynamic lubrication. The measurements of the film thickness were carried out using the optical interferometry technique while the friction was measured by a torque sensor on the ball shaft. The results reveal that the rubbing surfaces with transverse shallow micro-grooves with a length less than the diameter of the Hertzian contact have an improved tribological performance in comparison with smooth surfaces in the elastohydrodynamic lubrication regime. Indeed, a significant enhancement of film thickness has been observed using such design of microgrooves." . "Ali, Fadi" . "Reducing the friction of lubricated nonconformal point contacts by transverse shallow micro-grooves"@en . "This study focuses on the effects of transverse shallow micro-grooves on the film thickness and friction of nonconformal contacts under relative motion. Experiments were conducted using a ball-on-disc tribometer equipped with high speed camera and torque sensor. The lubricated contact between the steel ball and glass disc represents a nonconformal point contact with elastohydrodynamic lubrication. The measurements of the film thickness were carried out using the optical interferometry technique while the friction was measured by a torque sensor on the ball shaft. The results reveal that the rubbing surfaces with transverse shallow micro-grooves with a length less than the diameter of the Hertzian contact have an improved tribological performance in comparison with smooth surfaces in the elastohydrodynamic lubrication regime. Indeed, a significant enhancement of film thickness has been observed using such design of microgrooves."@en . "3"^^ . . "3" .