English Abstract

Frictional Vibration of Elastomers and Visualization of Contact Area

Chiharu TADOKORO *1
Satoru MAEGAWA *2
*1:Faculty of Environment and Information Sciences, Yokohama National University, Hodogaya-ku, Yokohama, Japan
*2:Faculty of Engineering, Nagoya Institute of Technology, Showa-ku, Nagoya, Japan
Nippon Gomu Kyokaishi,(2012),85(10),313-318 General Review in Japanese

The deformation of sliding objects plays an important role for determining the characteristics of frictional vibration. Therefore, to understand the frictional vibration of elastomers comprehensively, in-situ observations of contact area are necessary along with force measurements. In this article, after explaining the basics of frictional vibration using a single-degree-of-freedom model, some optical methods of visualizing the contact area (i.e., methods using transmission or reflection of visible light) are introduced. In particular, methods using the total reflection are hopeful to realize sensitive observations of contact area under dry or wet conditions.

Keywords: Frictional vibration, Stick-slip, Contact area, Optical observation