Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : April 18, 2016 - April 19, 2016
In this study, experiments were carried out with the aim to investigate the hydrodynamic lubrication mechanism of moving textured surfaces. The authors observed directly a lubricated area consisting of a rotating glass disc and a stationary glass cylinder from the top of the cylinder. Dimples were created on the rotating glass disc by photolithography. When dimples passed through the lubricated area, the film thickness increased, resulting in reduction in friction. Cavitation was observed within passing dimples. The greater the number of dimples or sliding speed was, the more friction-reducing effect appeared.
